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Message started by Ruttly on 02/19/17 at 10:04:52

Title: Lightened Flywheel
Post by Ruttly on 02/19/17 at 10:04:52

Had my 6.2 lb flywheel machined removing 2 lbs by Armen. The more I ride it the more I'm liking it. My bike already somewhat on the twitchy side now even more twitchy. When I first installed it , I could barely notice the difference. By the way R & R of flywheel is easy. It revs quicker seems right where you need it to. Not huge noticeable difference but I like it. On a out of the hole run I feel it rev quicker , until powerband mellows then normal feeling and at a freeway speed snap she takes off for passing. Keep in mind my engine has several mods. Im not sure but  it might be more noticeable on a stock engine . After many rides I like it ! When my bike comes apart for paint and seat then I will install my even lighter flywheel at 3.75 . I'm sure I will like it too ! I love R & D and tuning , there is not much more H/P
left to find in my engine unless I use a bigger cam. But If I find more H/P with my tuning & lighter flywheels you can bet I will be posting it !

Thank You Armen !

Title: Re: Lightened Flywheel
Post by batman on 02/19/17 at 11:37:12

Ruttly ,How does it act when you close the throttle?DO the rpm's drop off faster?

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 11:59:02

Great question, It's seems the same but I wasn't testing for that , a lighter flywheel you might be losing some compression braking I would think. Maybe Armen has that answer. I am shooting for the quickest out of the hole starts with tuning and lighter flywheels. It just started raining again here otherwise I would go try it !

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 12:20:36

Batman,The 4.2 lb is a minor change you really have to be very aware to sense the change , I do my tuning by the seat of my pants so I notice every change no matter how slight. Also my bike is only 310 lbs. Have found no ill effects what so ever, but like I said the more I ride it the more I'm liking it. Savage carries ALOT of weight with the flywheel the rotor and the starter gears removing some of that weight is a good thing, maybe even better fuel mileage!

Title: Re: Lightened Flywheel
Post by Armen on 02/19/17 at 12:58:57

Hey Ruttly,
Glad you are happy with the mod!
I shaved about 2 lbs off the flywheel, because that is how much I take off the Ducati flywheels, and that seems to give a noticeable improvement with no down side. There are some super light aluminum flywheels out there for the Ducs that make the bikes too twitchy for many folks.
I knocked a bit more weight off the second flywheel I did for you. Interesting to see how it feels.
It should provide a bit more/quicker engine braking as there isn't as much inertia carrying the crank revs.
I know Dave has put together a tool kit for doing the swap.
Not rocket surgery, but it takes some time, skill, and tools.
-Armen

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 14:08:08

I'm real interested to see how it works as well , I will post results when it gets installed !
Would a heavier stock bike benefit more from a lighter flywheel than a modified 310 lb bike like mine ? Would it be more noticeable ?

Title: Re: Lightened Flywheel
Post by Armen on 02/19/17 at 16:50:59

Ruttly asked:
"Would a heavier stock bike benefit more from a lighter flywheel than a modified 310 lb bike like mine ? Would it be more noticeable ?"

It really depends on how sensitive the rider is. On the Ducs that have used my lighter flywheels, the folks who are hyper sensitive will not only notice the difference in how quickly the motor revs up, but they may even notice that the bike is easier to change direction.

Huh?

A story:
Years ago when the brilliant John Britten built his all conquering twin, one of his racer/test riders was Andrew Stroud. One day, while testing at the track, Stroud came in and said to Britten "Lighten the crank so it'll turn quicker."
"Huh?" says Britten.
Stroud replied, "I went through the same set of 'S' turns in 4th, then 5th, then 6th gears. At the same speed. The bike turned easier in the higher gear."
Explanation:
With the crank rotating in the same direction as the wheels, the heavy crank had a lot of gyroscopic effect, and was hard to change direction. Lower gear meant the crank was spinning faster, so more gyroscopic effect. A lighter crank would mean less gyro effect at higher RPMs, so easier to change direction.

I'm in awe of guys like that.

Contrast that to the fact that many of the times when a student brings in their bike for my motorcycle maintenance class, the bike has less than 10 PSI of tire pressure. I ask them if they rode the bike to class, and did they notice any odd-say for example that the bike handled like a drunk pig on a water bed?
"No, it's fine" is always the answer.

Long answer to a short question. Depends on how good you are.

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 02/19/17 at 18:13:56

Did they notice any odd-say for example that the bike handled like a drunk pig on a water bed?


That's a question that, just because of How it's asked, pretty much demands a negative response. Anything even slightly resembling a yes COULD be seen as an admission of knowing what it's like to Be in a waterbed with a drunk pig.

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 18:36:56

JOG , You crack my up , lmfao

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 19:10:29

Armen , My bike is 310 lb maybe a little less and is super nimble but has a higher center of gravity than a stocker. I grasp that concept of it being easier to change direction but it wasn't what I feeling for while riding. Now I have to find a series of turns to try that out and then try it again after the other flywheel goes in. Removing  an estimated 3.45 lbs should be a noticeable difference. I wish I knew that when installed the first one. Not to many nice turns in farm country it's all squares with long straights good for tuning/jetting . Very interesting stuff !!!

Title: Re: Lightened Flywheel
Post by Ruttly on 02/19/17 at 20:32:43

That is if it ever stops raining here in CA !!!

Title: Re: Lightened Flywheel
Post by Dave on 02/20/17 at 04:15:42

I installed the 2 lb lighter flywheel on my bike, and it was 23 degrees and I was dressed in bulky clothes.....my riding conditions were not ideal.  I also have a modified engine (Wiseco 95mm, Stage 1 cam, Mikuni VM carb, big air cleaner, ported head, nice exhaust), and the GPS speedo confirmed about a 1/2 second improvement in the 0-60 mph time - I really didn't notice any negative effect from the lighter flywheel....but I could only ride for about 15 minutes before my hands were numb and I had to go get warmed up.

Lancer and Verslagen are going over to the "light side", and hopefully they can get some testing done soon.  So far....every engine that the flywheel has been mounted on is modified, as those of us who are looking for more power/speed have already made changes.

I will post the details on the tool rental soon.

Title: Re: Lightened Flywheel
Post by Ruttly on 02/20/17 at 05:47:04

Armen , Some clarification please , is a drunken pig an actual intoxified swine or just a fat chick picked up at the local bar ?

Title: Re: Lightened Flywheel
Post by Gary_in_NJ on 02/20/17 at 05:50:15

Good question. Although other than Arnold Ziffle, I don't know of many pigs that partake in alcohol.

Title: Re: Lightened Flywheel
Post by Ruttly on 02/20/17 at 06:01:59

I guess both could have a adverse affect on a waterbed ! ;D

Title: Re: Lightened Flywheel
Post by Armen on 02/20/17 at 06:13:49

I ain't nearly good looking enough to be calling other folks 'pigs'.

Title: Re: Lightened Flywheel
Post by badwolf on 02/20/17 at 08:03:22

"Good question. Although other than Arnold Ziffle, I don't know of many pigs that partake in alcohol."

Read "Animal Farm" by George Orwell.

Title: Re: Lightened Flywheel
Post by Ruttly on 02/23/17 at 06:46:35

Batman , Was out riding Tuesday and yes rpms come down much faster when throttled down than with stock flywheel !

Title: Re: Lightened Flywheel
Post by batman on 02/23/17 at 10:20:59

Can we assume down shifting going into a sharp turn would be more effective? If so,it might be time to hit the Tail of the Dragon!

Title: Re: Lightened Flywheel
Post by Dave on 02/23/17 at 10:40:44


696A7F666A653F330B0 wrote:
Can we assume down shifting going into a sharp turn would be more effective? If so,it might be time to hit the Tail of the Dragon!


More effective at what?  Acceleration.....compression braking?

Title: Re: Lightened Flywheel
Post by verslagen1 on 02/23/17 at 11:28:39

You've got to remember that you're not riding some multi cylinder high reving beast and those power or braking pulses are now going to be sharper.

Or you'll leave the equivalent of those abs staccato brake skids right off the side of the road.

Title: Re: Lightened Flywheel
Post by Trippah on 02/23/17 at 11:57:49

This is giving the "pig in a blanket" a whole new and unwholesome image.

Title: Re: Lightened Flywheel
Post by Armen on 02/23/17 at 12:04:52

Batman,
Holy crap, you want to do serious engine braking in a turn, at a place like the Dragon, with a bike that now has a lighter flywheel (and a high compression piston)?
Time to learn how to ride.
That is a good formula for ending up in a ditch wearing your ass for a hat.

Title: Re: Lightened Flywheel
Post by Ruttly on 02/23/17 at 12:27:04

Yeah I found that out riding in the rain, doing fifty downshift to fourth going into a left turn got a big surprise got to play flat tracker then whack the throttle to keep it sideways big fun but it got high center of gravity so it was a handful, spent a good 40 minutes playing supermoto on wet & muddy farm roads, if the bike wasn't sideways with tire spinning front end wanting to push, needs steeper rake angle for that kinda riding but it sure was fun , most fun I had on a bike in 25 years , love this bike !

Title: Re: Lightened Flywheel
Post by batman on 02/23/17 at 14:09:11

armen ,I was typing fast as I was heading out the door ,what I meant to say was down shift before entering a sharp turn .

Title: Re: Lightened Flywheel
Post by Ruttly on 02/25/17 at 20:13:04

Armen , You were so right about the turning. I used a slight s curve outside of town , picked a marker on the side of the road , made 3 passes using 3rd , 4th & 5th  at entry speed of about 45 mph. What a huge difference , in 3rd the bike needed to be pulled over and pulled thru the turn with alot of effort , 4th not as bad , 5th was easier to move within the lane , tighten up my line thru the curve , apex where I wanted to apex instead trying to pull the bike thru the curve due to the bike wanting to go straight and making me use the whole width of the lane. And transition from right turn to left turn was much lighter in 5th than 3rd. Now I get it , this will make me a much more controlled rider , what fun it is to learn better cornering skills. Faster thru a turn with less effort and better control. So Cool !
Thanks Armen

Title: Re: Lightened Flywheel
Post by Armen on 02/26/17 at 06:11:02

Hey Ruttly,
Way cool that you can feel the difference. It'll be interesting to see how the bike is when you put on the lighter lighter flywheel  ;)
Thanks for sharing.
-Armen

Title: Re: Lightened Flywheel
Post by Ruttly on 02/26/17 at 07:41:47

Yup it's going to get some taller gearing too when it gets the other flywheel to keep rpms down , it's got enough power to pull way taller gearing. That S curve has about a twenty foot drop at the end before the straight, went thru  at about 75/80 ish and was really fighting the bike to keep it out of the marbles on the edge of the road. Combination of lighter flywheel and taller gearing and maybe some better tires will make the bike a safer ride !

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/17/17 at 16:37:18

Ruttly, have you tried the other lighter flywheel yet? Curious because I am getting ready to lighten mine soon. I am thinking something around 3 pounds for mine. Unless you find something negative with your lighter flywheel.

Title: Re: Lightened Flywheel
Post by LANCER on 06/17/17 at 18:53:39

You boys having fun yet ? !    ;D

REX will be back on the road within a few days...yep.   8-)




Title: Re: Lightened Flywheel
Post by Ruttly on 06/17/17 at 21:10:46

No , My tracker is down right now for seat , paint and a lot of odds & ends. Spent today modifying wiring harness , moving horn & ignition switch & putting my helmet lock back on. Next is GPS speedo. Then the lighter light flywheel and couple other minor things to engine. Then regear it to 18/51 from a 17/54. So the Sportster is my ride for now. It gives me a great workout on the really tight twisties , but it flys thru the sweepers. There is almost a 200 lb difference between the two bikes. I miss the tracker !

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/18/17 at 09:17:06

I understand perfectly. My last two bikes were both well over 500 pounds each. That was a big reason for wanting to build a Savage. Tired of wrestling all of that weight around.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/18/17 at 10:26:54

Yup I'm not tall or young anymore , me and the RYCA tracker are the perfect combination, we can slice n dice the twisties ! Did you build a RYCA too ? Or mod up a stocker ? Interested in your build. I,m started this project 3 1/2 years ago , but having fun , don't know if I will ever call it done , but getting closer !

Title: Re: Lightened Flywheel
Post by Ruttly on 06/18/17 at 10:30:12

Lancer , Please post some pics of the recent rendition of Rex. Would love to ride it someday ! And of course cut you loose on the Tracker.

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/18/17 at 11:26:20

I am going kind of the opposite direction from a RYCA build. More along the lines of a mild chopper, but with enough motor to have some serious acceleration when I want. Street port job, 1 3/4" exhaust, some air box mods, lighter flywheel, and possibly a regrind on the cam. Just a nice cruiser that is a lot of fun to ride. :)

Title: Re: Lightened Flywheel
Post by Ruttly on 06/18/17 at 18:45:25

Yeah that's the coolest thing about a Savage. It's a ball of clay you can make it into anything.

Title: Re: Lightened Flywheel
Post by LANCER on 06/18/17 at 18:57:11

You really want/NEED a good camshaft, it makes a fun bike REALLY FREAKIN FUN !  [ch128526][ch127949]

Title: Re: Lightened Flywheel
Post by Ruttly on 06/18/17 at 19:08:14

Lancer , There was recently on SS that was going to use a DR cam !
Have you tried one ? Opinion ?

Title: Re: Lightened Flywheel
Post by LANCER on 06/19/17 at 07:03:19


4E69686870651C0 wrote:
Lancer , There was recently on SS that was going to use a DR cam !
Have you tried one ? Opinion ?


I have not personally tried one in one of my bikes, they both have an upgraded cam already.  If you have already looked at the lift and duration of the early DR's they are significantly up from the cams I use, especially the lift, it is really high.  I have not doubt that the valve train is capable of handling it since the DR and LS have virtually identical systems.  It is the exhaust ports that are radically different, the DR has really nice straight shot ports, while ours is a crooked maze.  I don't have the engineering background to know for sure what the exact negative effect is from our ports are but it seems logical to me that it would be significant.
Perhaps some here with the engineering background could help, unless you have some direct experience with this type of situation.  If so, I certainly welcome it.

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/19/17 at 08:54:03

I don't have access to a flowbench anymore so I can't say with any certainty. but to me that exhaust port looks like it is upside down to how it should be shaped. Where the roof of the port is flattened should be on the floor instead to help turn the exhaust gas as it enters the head pipe.

But I have seen ports that looked completely wrong that actually flowed very well. So like I said, without a flowbench I can't be certain that the existing port doesn't work well.

Title: Re: Lightened Flywheel
Post by batman on 06/19/17 at 11:16:02

I think the biggest problem is that when the exhaust valves near fully open the speed of the exhaust gases drop to sub sonic ,and as they pass the "shelf" in the roof of the head they expand (pressurize ) killing the flow out the exhaust pipe .If the size of the channels in the head just behind the valves started at 85-88% of the exhaust valve size and increased to only the size of the valves when they reached the exhaust header ,then the velocity of the gases would be maintained and the head would be more effectual.

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/19/17 at 11:26:35

Whew,, I was Just Gonna make that point and now I don't hafta do that typing.. yep, that's what I was gonna say alright..

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/19/17 at 12:06:49

I think that if the shelf was blended to match the rest of the port wall it would be better too. That step from a somewhat round port to the flat shelf has to create a lot of turbulence. Since the exhaust cam lobe has more lift than the intake lobe, it would seem to indicate that it does cause a restriction in exhaust flow.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/19/17 at 12:27:56

Remove the ring and open pocket then smooth port try not to remove any from what looks like the ramp if you turn the head over you will see it is the area that surrounds the springs. Thin that area and the exhaust will be cooking the oil in that area. There is plenty of ring & pockets to remove. While doing the ports remove all the sharp edges in combustion chamber this will prevent detonation. Detonation kills performance !

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/19/17 at 12:38:28

I was thinking more along the lines of filling in the area and blending rather than simply removing material around the shelf. That way it would have more of a uniform shape rather than the abrupt step that it has.

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/19/17 at 16:21:30


183F2D2A686B6E5E0 wrote:
I was thinking more along the lines of filling in the area and blending rather than simply removing material around the shelf. That way it would have more of a uniform shape rather than the abrupt step that it has.


And that one genuinely is what I had thought. They built a mold to quickly and efficiently cast a head, not run like the wind.
What do you use to fill with?

Title: Re: Lightened Flywheel
Post by batman on 06/19/17 at 17:08:53

I thought it was Ruttly or Arlen  that said they knew of a material that could be used ,that would stay in place and deal with the heat by design.I can't remember ,but yes I believe that would be the best way to go.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/19/17 at 18:22:57

It's not very thick in that area , use caution. But the ring has got to go !
I wish I had taken pics when I did mine , it came out very nice.

Title: Re: Lightened Flywheel
Post by Armen on 06/19/17 at 18:25:26

I bought some high temp epoxy that was designed for exhaust ports, but haven't tried it yet.
I cut a head in half to get a better idea of the wall thicknesses and the amount of metal between the spring seat and the port ceiling.

Title: Re: Lightened Flywheel
Post by LANCER on 06/19/17 at 19:23:02


5F6C737B701E0 wrote:
I bought some high temp epoxy that was designed for exhaust ports, but haven't tried it yet.
I cut a head in half to get a better idea of the wall thicknesses and the amount of metal between the spring seat and the port ceiling.


I've got some disposable spares I can cut and take a look.  Meant to do that before but just never got around to it.
Yep, there is not much metal to play with.

Title: Re: Lightened Flywheel
Post by batman on 06/19/17 at 21:00:35

ARMEN What was that epoxy you bought? did it have any ceramic beads or anything of that nature to make if tuffer?

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/19/17 at 23:02:34

Yes, what is the name of it and where did you get it? Epoxy sounds a lot easier than welding to fill in the port.

Title: Re: Lightened Flywheel
Post by Armen on 06/20/17 at 18:31:32

Here is a pic of the cut head. Note the step in the exhaust port and how thin the casting is at the port roof.

Title: Re: Lightened Flywheel
Post by Armen on 06/20/17 at 18:34:56

Epoxy:

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/20/17 at 18:43:45

Manley, Miracle Seal Epoxy - Competition Products
www.competitionproducts.com/Manley-Miracle-Seal-Epoxy/productinfo/...
Manley, Miracle Seal Epoxy This two part adhesive is best for repairing exhaust ports and any other parts that are subject to high temperatures up to 1350 degrees.

Title: Re: Lightened Flywheel
Post by batman on 06/20/17 at 19:35:39

So now the we need to determine if the exhaust gases have a temp over 1350 degrees? and where can we put the epoxy where it will work for us.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/20/17 at 19:42:55

Thanks Armen , Seems nobody believed me how thin it is ! Used a different technique checking the thickness , a automatic center punch with the tip ground down to a ball with my finger on the other side , couldn't tell how thick it is but I could tell enough to know not to remove any material in that area just smooth it with some fine emery cloth !

Title: Re: Lightened Flywheel
Post by Armen on 06/21/17 at 02:59:48

My thought was that if I build up some of the goop in the area between the valve spring seats which would allow the port roof to be raised and rounded a bit.

Title: Re: Lightened Flywheel
Post by LANCER on 06/21/17 at 03:01:58


192A353D36580 wrote:
My thought was that if I build up some of the goop in the area between the valve spring seats which would allow the port roof to be raised and rounded a bit.



Had not thought about that...INTERESTING.

Title: Re: Lightened Flywheel
Post by batman on 06/21/17 at 09:03:04

Armen ,I think that might be the best way,you wouldn't have to worry  about  separation and it would be cooled buy oil returning to case.

Title: Re: Lightened Flywheel
Post by verslagen1 on 06/21/17 at 12:05:39

They shoulda lowered the header so it was centered on the ex port.

Title: Re: Lightened Flywheel
Post by Armen on 06/22/17 at 02:55:17

Next time I have some spare time and cash I'm bringing my spare head up to a semi-local guy who does porting, and have him do some magic. I'll bring the cut-away head and the goop, and let him do the best he can.
Pretty crazy that the motor is so gutless. An OHC 4 valve 650cc (or 695) should be able to crank out an honest 50 HP in a moderately tweaked state of tune. From what I hear, you are lucky to get 40 or so Shetland ponies out of one.
I have a Mikuni RS flat slide carb, one of Lance's bump sticks, and a Ryca muffler, so that should help.
Right now I have to finish the wiring and all the mechanical stuff.


Title: Re: Lightened Flywheel
Post by Gary_in_NJ on 06/22/17 at 05:08:16


645748404B250 wrote:
Right now I have to finish the wiring and all the mechanical stuff.



I'm glad to hear that you are going to finish it. A few months back it seemed as though you might walk away from it.

Title: Re: Lightened Flywheel
Post by Armen on 06/22/17 at 05:24:22

He Gary,
Well, I found myself with all 6 bikes in various states of disrepair, so I gave up and bought a new bike.
Went on an 11 day/seven state/2500 mile trip, and the world is a better place.
Now that I have something that runs, I can get back to tending to the wounded. Have too much time and money invested to just walk away.

Title: Re: Lightened Flywheel
Post by LANCER on 06/22/17 at 08:52:02


4F7C636B600E0 wrote:
He Gary,
Well, I found myself with all 6 bikes in various states of disrepair, so I gave up and bought a new bike.
Went on an 11 day/seven state/2500 mile trip, and the world is a better place.
Now that I have something that runs, I can get back to tending to the wounded. Have too much time and money invested to just walk away.



I understand the multi-bike flail, but I also find that I make better progress when focusing on one till finished, then move on.
I know you know this, but sometimes it can be helpful to have a friendly reminder.
ROCK ON DUDE !   8-)

Title: Re: Lightened Flywheel
Post by Fast 650 on 06/22/17 at 11:38:57

> Pretty crazy that the motor is so gutless.


That is one way to look at it. On the other hand, if you compare it to a v-twin having cylinders of similar displacement, the Savage is right in line with them. An 80 inch Harley is around 60hp stock. Removing one cylinder would leave you with 40 cubic inches and about 30hp. The power to displacement ratio is about the same when viewed in that light.

Title: Re: Lightened Flywheel
Post by Armen on 06/22/17 at 11:51:11

yup. But you are comparing a pushrod 2 valve motor with a rev limiter set at below 6,000 RPMs and an OHC 4 valve motor.
With your logic, an OHC  valve 1200 cc motor would put out about 50-60 HP.
The Savage motor is def an underachiever.

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/22/17 at 13:50:38

Savage motor is def an underachiever

Word..

It's a lawnmower motor with an oil pump.
From a time when things weren't sophisticated.
The bang for the Buck is okay, marginal,, but okay.
The bikes limitations challenge me. I'm not bored.

Title: Re: Lightened Flywheel
Post by LANCER on 06/22/17 at 17:46:54


3A252324393E0F3F0F37252962500 wrote:
Savage motor is def an underachiever

Word..

It's a lawnmower motor with an oil pump.
From a time when things weren't sophisticated.
The bang for the Buck is okay, marginal,, but okay.
The bikes limitations challenge me. I'm not bored.


It is challenging and FUN !

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/22/17 at 17:59:44

Yep, learning to hustle the savage around a corner is great fun , and I don't think I will have a seven foot fall after the high side while I learn.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/22/17 at 20:22:21

When your riding a slow bike fast it's like your in slow motion , gives you time to plan/think about your cornering/braking. Still every bit as challenging as a fast bike,you learn to brake less and carry more speed into turns to get a little more coming out and wound up sooner for the straights. When the adrenaline starts flowing and your focused and on a favorite road its a rush. Sure that Yamaha R1 coming up from behind is gonna eat you alive,but I could care less I'm in the zone,focused and I am the fastest bike on the road,I own this road ! Make that R1 work to find a spot to pass, when he passes me at light speed I just giggle,he needs a R1 to pass me on this road cuz I own this road ! Way more fun on a big single,just way more fun.
  It's as simple as watching the vintage singles class racing Manx vs Gold Star it's like a ballet on two wheels and intense racing all at the same time.
What we ride is the essence of motorcycling,primitive Big Singles
In my eyes it just doesn't get any better !

Title: Re: Lightened Flywheel
Post by hotrod on 06/22/17 at 20:30:42

Well said.

Title: Re: Lightened Flywheel
Post by LANCER on 06/23/17 at 23:51:17

I remember that feeling that our "Manteca Man" was talking about, and it was indeed FUN to force those Fast Movers to work at passing our classic thumper on mountain twisties that we found in the Smoky Mountains around the Dragon, and other such roads...those of us on "The Backline Crew".  It was great fun indeed.  
My hand/eye coordination is not what it was a few short years ago so I no longer play that game, but still relish riding those type of roads, albeit at a bit slower pace.  Even so, it still brings a grin to my face when blessed with a Black Line.

I offer this in memory to a dear friend who was taken much too soon, Oldtimer.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/24/17 at 15:25:27

Lancer , When I started the tracker build it in part was built to honor a true friend who also passed far to soon. Big Jim was one of the best riders I know , you could say he taught me how to ride , cuz if you could keep his tail light in sight you were haulin a$$. Not once did I ever get the honor of passing him on the street , but passed him several times on the dirt! What a great friend & mentor I lost. He would love my little tracker , he would be gone all day with it if givin the chance !

Title: Re: Lightened Flywheel
Post by LANCER on 06/28/17 at 09:54:01

Most recent photos of REX

http://https://s26.postimg.org/b7t9ujvvd/IMG_0672.jpg

http://https://s26.postimg.org/3vntp0dnd/IMG_0692.jpg

http://https://www.bikepics.com/pics/2017/06/22/bikepics-2800980-984.jpg

http://https://s26.postimg.org/hdzbf1f6h/IMG_0686.jpg

http://https://s26.postimg.org/nozxhpr15/IMG_0689.jpg

Other than the first photo, which combination of seat/tank do you prefer ?

Black tank is stock steel; grey tank is '60's fiberglass BSA flat track tank.

Title: Re: Lightened Flywheel
Post by Dave on 06/28/17 at 10:19:15

I don't like the looks of the Cafe' seat with the front of the bike being uphill.


Title: Re: Lightened Flywheel
Post by Ruttly on 06/28/17 at 10:19:38

I like the glass tank with the glass seat with some wide bars. Old fiberglass tanks are often leaky be sure to use a fiberglass compatible tank coating on the inside maybe even doing it twice.
The way things are going winter will set in before I get the tracker back together. Pretty sure it will be worth waiting for , think you will like it !

Title: Re: Lightened Flywheel
Post by batman on 06/28/17 at 15:24:40

I don't know of anyone that has build a bike with a café seat ,that hasn't ended up with a" trailer queen" those seats are as bad as or worse than stock.If you want a "bar hopper" so be it ,if you expect to ride any distance a café seat won't cut it.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/28/17 at 19:25:47

It's like anything else , it conditioning. After a few days on the road you can't feel your butt anyways ! However if you got a real big a$$ a big wide seat might keep you from sliding off one side or the other !

Title: Re: Lightened Flywheel
Post by Dave on 06/29/17 at 01:41:38


66657069656A303C040 wrote:
I don't know of anyone that has build a bike with a café seat ,that hasn't ended up with a" trailer queen" those seats are as bad as or worse than stock.If you want a "bar hopper" so be it ,if you expect to ride any distance a café seat won't cut it.


Me!.......I ride my Cafe' bike from early morning to late at night when we go on the group rides and I have put about 9,000 miles on mine since the Cafe' seat was installed.  And yes.....the RYCA seat padding is far worse than the stock seat and the padding is very thin on the edges and can make the backs of your legs very tender where the backs of your legs rubs the seat edges....this is especially noticeable on rides where you stop a lot and have your feet down on the ground at traffic lights and STOP signs.   I had my seat redone with thicker padding on the edges and it is far more comfortable.  I also had to rework the angle of the clip-on handlebars to make them "all day" comfortable.

Still......I do believe the larger seat that Lancer showed will be a more comfortable seat than the RYCA Cafe seat.

Title: Re: Lightened Flywheel
Post by Ruttly on 06/29/17 at 05:53:49

He asked which do you prefer , not which would be better for long rides !
Bar hopper is not a good term , prefer back roads blaster !

Title: Re: Lightened Flywheel
Post by batman on 06/29/17 at 06:56:48

Ruttly , well I guess you know  which one I prefer!At 6ft,a buck 80 and a 34" inseam ,having a big a$$ ain't my problem.Comfort is, a trip to the nearest city (yesterday) Syracuse N.Y. is 60 miles one way.

Title: Re: Lightened Flywheel
Post by ohiomoto on 06/29/17 at 07:08:52

The cafe seat and BSA all the way for looks.   If you need more comfort, ditch the cafe seat and get a standard/brat/scrambler styled seat.  The SR500 aftermarket seat I put on my bike is decent.  No worse than stock IMO. 

http://www.omegaracer.com/parts_store/prod_2177984-Yamaha-SR-Seat-Tracker-BlackRibbed.html#sthash.09fMRYID.dpbs

Title: Re: Lightened Flywheel
Post by LANCER on 06/29/17 at 07:38:13


162D2037262A31372C242936450 wrote:
I don't like the looks of the Cafe' seat with the front of the bike being uphill.



The OD green frame will be modified so that the seat and tank are inline.
This will take a while so will be using the black frame for the time being, just not sure which seat I want to use for now, there are 5 to choose from.  All are not shown in the photos.

Title: Re: Lightened Flywheel
Post by LANCER on 06/29/17 at 07:42:01


5A7D7C7C6471080 wrote:
I like the glass tank with the glass seat with some wide bars. Old fiberglass tanks are often leaky be sure to use a fiberglass compatible tank coating on the inside maybe even doing it twice.
The way things are going winter will set in before I get the tracker back together. Pretty sure it will be worth waiting for , think you will like it !



I reglassed the inside of the tank with current resin so it should be ok.

Title: Re: Lightened Flywheel
Post by LANCER on 06/29/17 at 07:47:19


3231243D313E6468500 wrote:
I don't know of anyone that has build a bike with a café seat ,that hasn't ended up with a" trailer queen" those seats are as bad as or worse than stock.If you want a "bar hopper" so be it ,if you expect to ride any distance a café seat won't cut it.



My cafe seat does not have the lousy "make believe" pad in it that RYCA uses.  I replaced it with 1.5" of medical gel.
That is TOTALLY different.
Look closely at the seat.
 8-)

Title: Re: Lightened Flywheel
Post by verslagen1 on 06/29/17 at 08:50:10

Since your going to end up with something else anyway, looks don't matter.
Go with functional. eggs parry mint.  rat bike, that header deserves it.

Title: Re: Lightened Flywheel
Post by LANCER on 06/29/17 at 08:59:47


2A392E2F303D3B39326D5C0 wrote:
Since your going to end up with something else anyway, looks don't matter.
Go with functional. eggs parry mint.  rat bike, that header deserves it.



I agree Michael, function over looks, but I can get a straight line effect (or nearly so) on the tank/seat without sacrificing any function.
I do love my header/muffler set.

Title: Re: Lightened Flywheel
Post by Gary_in_NJ on 06/29/17 at 09:11:30

I like the lines of the BSA tank.

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/29/17 at 09:50:29

The gyroscopic forces of the lightened flywheel couldn't keep the thread in line.

Title: Re: Lightened Flywheel
Post by ohiomoto on 06/29/17 at 09:53:36

What?  I thought this was Lancer's thread.  :)

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/29/17 at 10:15:20

I'm not allowed to point out someone else's car is off the road?

Title: Re: Lightened Flywheel
Post by Ruttly on 06/29/17 at 10:17:20

I take ownership of this here thread , I like threads that lose their direction. So continue on it will eventually get back to flywheels.
Glass tank & seat has got my vote , makes it hard for people to Identify the bike. It's all about shapes & lines !

Title: Re: Lightened Flywheel
Post by ohiomoto on 06/29/17 at 10:23:23


716E686F72754474447C6E62291B0 wrote:
I'm not allowed to point out someone else's car is off the road?

----------------------------------------------------

I was just joking, because I didn't even realize Lancer hijacked the thread.  I actually prefer that threads stay on the road because I would never remember to look here to find Lancer's build and I'm interested in what direction he takes it.  

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/29/17 at 10:26:37

I hijack threads daily. I was just joking. Carry on, across hill and dale, and the occasional road.
Slap whatever tank and seat on you think best suits your flywheel.

Title: Re: Lightened Flywheel
Post by Dave on 06/29/17 at 10:55:01

Armen has sent me 3 lightened flywheels....I am supposed to be posting them up for sale to forum members.

If you do want a light flywheel - contact me.
(This is pretty much on topic).

Title: Re: Lightened Flywheel
Post by Gary_in_NJ on 06/29/17 at 12:53:12


253A3C3B2621102010283A367D4F0 wrote:
The gyroscopic forces of the lightened flywheel couldn't keep the thread in line.


Funny

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/29/17 at 13:05:46

I don't know much about the finer points of mechanicing, but I know the nuts and bolts of humor.

Title: Re: Lightened Flywheel
Post by LANCER on 06/29/17 at 13:25:19


496E6F6F77621B0 wrote:
Lancer , Please post some pics of the recent rendition of Rex. Would love to ride it someday ! And of course cut you loose on the Tracker.



 I did not intentionally try to move in on his thread, he asked me to post some photos, so I did.

He runs.
8-)...........    (and no strange noises)   ;)

http://https://www.bikepics.com/pics/2017/06/29/bikepics-2801119-984.jpg

Title: Re: Lightened Flywheel
Post by justin_o_guy2 on 06/29/17 at 13:56:42

Nothing but business.

Title: Re: Lightened Flywheel
Post by snels516 on 07/07/17 at 07:01:16

Lancer that BSA tank looks awesome. Any issues with mounting? Or have you not gone beyond a mock up?

Title: Re: Lightened Flywheel
Post by LANCER on 07/21/17 at 02:47:49


4D505B524D0B0F083E0 wrote:
Lancer that BSA tank looks awesome. Any issues with mounting? Or have you not gone beyond a mock up?


There are no issues mounting the BSA tank on the OD green frame since it was modified before for another tank.  It will only need to have a stud welded on the frame to secure the tank.
I finally got a weight on REX, he weighs in at 327 lbs.  I thought it would have been less.   Now I need to weigh the purple to find out what a stocker is.

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