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Message started by kk lewi on 08/15/10 at 09:49:49

Title: Overheating - Fixed
Post by kk lewi on 08/15/10 at 09:49:49

Hi, got a prob I hope you guys can help me with.  My bike keeps overheating.

Well first some back story.  About a month ago I cranked my bike to juice the battery.  I then let it sit idling.  Being the idiot that I am I didn't think about her being air cooled and sitting still wasn't good.  Came back to her about 15 minutes later and she wasn't running and wouldn't start.  I talked to you guys and was told that I had prob overheated her.  Sure enough, I later cranked it no problems.  The next day I got about 3 miles from home and she shut down on me.  Overheated again.  Talked to you guys again and decided to change the oil.  That seemed to fix things.

That brings us to today where she overheated again!  It's not a petcock issue.  I can see gas in my fuel filter.  I'm using regular diesel oil.  Nothing fancy just some stuff from wal-mart.  15w-40 motorcraft.  It seemed to work fine until the initial overheat.  It's been less than a thousand miles since I replaced the overheated oil.  Something is fishy.  It's not even that hot out.  About 90.

Could this be indicative of a bigger problem?  I have some Rotella syn that I was going to give her after this next oil change but dang I didn't want to change it already!

Thx friends.   :)

==============================


RESOLVED  Replaced petcock with a Raptor.  WIN!

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 10:03:48

to get relative on ya...

about 90, doing freeway speeds (to coin a term, v1 speed  ;D ) and coming to an abrupt halt at a long signal will over heat the engine or at least cause your legs not to like being on the pegs.  But if you can keep rolling, even at residential speed it was fine.  so rather than hanging out at that light burning the hair off my legs, I turned into a residential area to keep the air flowing.

So, what are you doing?

Title: Re: Overheating
Post by bill67 on 08/15/10 at 10:11:44


707D6466696F69080 wrote:
Hi, got a prob I hope you guys can help me with.  My bike keeps overheating.

Well first some back story.  About a month ago I cranked my bike to juice the battery.  I then let it sit idling.  Being the idiot that I am I didn't think about her being air cooled and sitting still wasn't good.  Came back to her about 15 minutes later and she wasn't running and wouldn't start.  I talked to you guys and was told that I had prob overheated her.  Sure enough, I later cranked it no problems.  The next day I got about 3 miles from home and she shut down on me.  Overheated again.  Talked to you guys again and decided to change the oil.  That seemed to fix things.

That brings us to today where she overheated again!  It's not a petcock issue.  I can see gas in my fuel filter.  I'm using regular diesel oil.  Nothing fancy just some stuff from wal-mart.  15w-40 motorcraft.  It seemed to work fine until the initial overheat.  It's been less than a thousand miles since I replaced the overheated oil.  Something is fishy.  It's not even that hot out.  About 90.

Could this be indicative of a bigger problem?  I have some Rotella syn that I was going to give her after this next oil change but dang I didn't want to change it already!

Thx friends.   :)

You should be using a high performance motorcycle oil in stead of diesel oil.

Title: Re: Overheating
Post by Oldfeller on 08/15/10 at 11:01:48



Yup, you may need to clean out some of the overheating by products that are coating the inside of your motor.


Go buy you a big blue gallon jug of Rotella T-6 full synthetic 5w-40 oil and change it twice (use the full jug) and see if that helps with your issues.

It's a very heavy duty full motorcycle rated synthetic that carries an excellent engine cleaning additive package.   It is also known to help smooth out your transmission a little bit, so that may be helpful to you as well.


Please, do let us all know if it helps you with your "cooked motor" issues, it will be good information for the list to know.



Thanks,

Oldfeller

Title: Re: Overheating
Post by bill67 on 08/15/10 at 11:10:26

Sea Foam will clean out the motor,Then go to a Group 5 oil like Hi performance Klotz or Red Line,They are made to with stand higher heat than normal motorcycle oil.

Title: Re: Overheating
Post by ralfyguy on 08/15/10 at 11:17:25

This oil war is nuts. It's now in almost every thread.

Title: Re: Overheating
Post by spacepirates on 08/15/10 at 11:25:54

Can you tell us what exactly you are doing when your bike over heats?

I'd be surprised if it happened while you're cruising at 40mph, but if it is at long stop lights that is a bit different.

how is your idle speed? could be that it needs to be set a tad higher if your bike stalls out when you are stopping.

Title: Re: Overheating
Post by bill67 on 08/15/10 at 11:31:03

I think the reason it overheated the second time is because the oil was shot from being overheated.

Title: Re: Overheating
Post by jsarsfield on 08/15/10 at 11:36:45


393237376D6C5B0 wrote:
Sea Foam will clean out the motor,Then go to a Group 5 oil like Hi performance Klotz or Red Line,They are made to with stand higher heat than normal motorcycle oil.


Somebody fix the broken record ... Oh and just so the OP understands the 1-5 rating scale is Bill's invention.

Title: Re: Overheating
Post by bill67 on 08/15/10 at 11:45:10

You might have a stuck ring which the Sea Foam could fix.

Title: Re: Overheating
Post by Charon on 08/15/10 at 13:13:30


32393C3C6667500 wrote:
Sea Foam will clean out the motor,Then go to a Group 5 oil like Hi performance Klotz or Red Line,They are made to with stand higher heat than normal motorcycle oil.


Prove any one of those claims, Bill. Show us a documented test where Sea Foam cleaned an engine. Show us a link from a maker's web site saying Klotz or Red Line is a Group V oil.

Title: Re: Overheating
Post by bill67 on 08/15/10 at 13:21:48

Charlie prove me wrong,,Charlie I have seen Sea Foam work in engines and carbs,thats all the proof I need.Show me were Klotz MX 15w-50 isn't a 10 out of 10 for no wear.

Title: Re: Overheating
Post by Charon on 08/15/10 at 13:26:42

Once again, Bill, the username is Charon. If you aren't bright enough even to copy it, there is little hope for you.

And you still are following your habit of attacking the questioner instead of actually showing your claims to be true. I have tried SeaFoam, and it did absolutely NOTHING. And YOU are the one making unsubstantiated claims.

Title: Re: Overheating
Post by Max_Morley on 08/15/10 at 14:04:17

There appears to be some agreement from on the 1-5 rating scale of oil base stocks and additive packages, I base this on information from the web site <motorwatch.com>, of which I am a member.  Max

Title: Re: Overheating
Post by bill67 on 08/15/10 at 14:10:07


654E47544948260 wrote:
Once again, Bill, the username is Charon. If you aren't bright enough even to copy it, there is little hope for you.

And you still are following your habit of attacking the questioner instead of actually showing your claims to be true. I have tried SeaFoam, and it did absolutely NOTHING. And YOU are the one making unsubstantiated claims.

charlie my username is Bill67.If you aren't bright enough even to coyp it,there is little hope for you

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 14:10:41

charon is that pronouced like karhone or sharon?

ol' bill ain't able to prove anything above the effectiveness of a product.  By his own admission, he does not take apart anything.  So how can he prove it works?  only the fact that the symptom went away.

I will tell you though, I've had a sticky slide on the carb and added a little seafoam and it's gone away for at least 6 months.  The carb was disassembled prior to that, so maybe had a fingerprint to deal with.

I've also used it to clean residue from a dissolved gasket maker from the inside of an engine.  This was used straight and applied with a brush.  Then 2 oil changes with rotella dino.

Now what was said about trolls?...  Oh yeah, don't respond to them.

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 14:10:47


6764757771647D6675607167140 wrote:
Can you tell us what exactly you are doing when your bike over heats?

I'd be surprised if it happened while you're cruising at 40mph, but if it is at long stop lights that is a bit different.

how is your idle speed? could be that it needs to be set a tad higher if your bike stalls out when you are stopping.



I was cruising about 40 to 50mph up and down the main road where I live.  No lights, no stops.  I was suspect about things so I just went one way then the other hovering about 3 miles from my house.

My idle speed is high, maybe to high, but from OF posts it should be high and I'm not sure how much.  I dialed her in to give me the least amount of backfire.  Backfire on shutdown be darned.

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 14:14:40


2D26232379784F0 wrote:
Sea Foam will clean out the motor,Then go to a Group 5 oil like Hi performance Klotz or Red Line,They are made to with stand higher heat than normal motorcycle oil.


thx Bill it was actually you that suggested that I change my oil last time she overheated.  I have run sea foam for kicks and giggles.  My motor has 3k miles tho so I'm good on cleaning things out.

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 14:20:31

cruising at 40/50 should be just fine.  weather you did or not, stopping for a sign shouldn't be an issue either.

backfire on shutdown tells me, your idle mixture is a bit lean, is it a poof, pow or hit the dirt KERPOW?

btw, running hot tells me your main could be lean too.

while riding, are your legs feeling real uncomfortable on the pegs?

if you got and thermometer, the kind with a probe like for sticking in meat, or go to harbor freight and get a IR thermo  read the temp off the oil cover and head, just bellow the plug for the cam.  then I can give you a relative reading off mine.

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 14:21:36


51727A787B72727B6C1E0 wrote:
Yup, you may need to clean out some of the overheating by products that are coating the inside of your motor.


Go buy you a big blue gallon jug of Rotella T-6 full synthetic 5w-40 oil and change it twice (use the full jug) and see if that helps with your issues.

It's a very heavy duty full motorcycle rated synthetic that carries an excellent engine cleaning additive package.   It is also known to help smooth out your transmission a little bit, so that may be helpful to you as well.


Please, do let us all know if it helps you with your "cooked motor" issues, it will be good information for the list to know.



Thanks,

Oldfeller


Glad to see your post OF.  I probably respect your opinion the most.  I am going to change my oil right now (altho it shouldn't need it!).  I have the Rotella already.  ;)


Title: Re: Overheating
Post by kk lewi on 08/15/10 at 14:32:23


352631302F2224262D72430 wrote:
cruising at 40/50 should be just fine.  weather you did or not, stopping for a sign shouldn't be an issue either.

backfire on shutdown tells me, your idle mixture is a bit lean, is it a poof, pow or hit the dirt KERPOW?

btw, running hot tells me your main could be lean too.

while riding, are your legs feeling real uncomfortable on the pegs?

if you got and thermometer, the kind with a probe like for sticking in meat, or go to harbor freight and get a IR thermo  read the temp off the oil cover and head, just bellow the plug for the cam.  then I can give you a relative reading off mine.


I think I am at 1 3/4 turns out.  I did 1/4 turns when I first got her (bought with 5 turns out!  :O) from zero.  At about 2.5 turns out I get a black sparkplug.  The backfire is no poof, it's more like pow but not hit the dirt.

It doesn't seem overly hot, or hasn't, until this last month (since I cooked her the first time).  Now I can noticeably tell she's hot when she shuts down.  My poor baby.  :(

I have no idea about the jets and such.  It does have a custom muff so the previous owner could have tweaked them.  She's my only mode of transportation atm so I'm worried about taking the carb apart.

Title: Re: Overheating
Post by Oldfeller on 08/15/10 at 14:34:36


I confess,   I am cheating for you by getting you to switch to the synthetic oil.

You are "cheating a bit" in case you really DO have a real long term overheating issue that is accumulating damage to your engine.   We want to stop the progression now while it is still rideable.

The Rotella syn will still be there doing its job without turning solid way past 350 degrees and you will not lose your engine due to lack of lubrication (unless you have a completely blocked off oil passage somewhere).   It won't be bothered by the heat at all while you search out your overheating problem, its that kind of oil.  

And it really has some super cleaning properties which will really help clean out any films or coatings or sludges that have accumulated in your oil passages due to the overheating so far (so kinda expect it to get dirty kinda quick -- that means its doing its job so let it work for a month or so before changing it again).

I wish somebody had told me about synthetics before I cooked a Ford Taurus engine to death going up the 20 mile incline to Pidegon Forge back in the early 90's -- could have saved me a car, it could have.  

I started using synthetics after scrapping that car -- I am still driving the next car that I bought, a 1990 Acura Legend (have always used synthetics in it and it has over 235,000 miles and is doing great)  

20 years of driving it with no lubrication issues at all -- gotta love them synthetics.

Title: Re: Overheating
Post by BuckHMCC on 08/15/10 at 14:38:45

When I'm riding one of my air-cooled motorcycles in hot weather and I come to a stop that I think will be more than 20-30 seconds, I turn it off. Some of those stoplights run on a long cycle.

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 14:39:26


5C51484A454345240 wrote:
 The backfire is no poof, it's more like pow but not hit the dirt.

It doesn't seem overly hot, or hasn't, until this last month (since I cooked her the first time).  Now I can noticeably tell she's hot when she shuts down.  My poor baby.  :(

I'd give it maybe an 1/8 turn richer, it'll drop it from a pow to a poof.

I'm worried about a blocked passage to the head or your oil pump it fried or blocked.

the blocked oil pump has been reported one time, due to the plastic on the cam chain tensioner guide from peeling off.

2 things I would check, if you didn't want to take it apart, Compression and Oil pressure.  I don't know if your buddy can help on these, they're pretty standard tests.

Title: Re: Overheating
Post by Charon on 08/15/10 at 14:54:34

Versy, I think Charon is pronounced with a hard C, or a K. I have liked boats for as long as I can remember, and Charon was the ferryman who transported the dead over the River Styx into Hades. The letters also appear in order in my real name, with the C being the first letter of my first name and the N being the first letter of my last name. On websites which ask for names, such as Fuelly, I often use the International Phonetic alphabet giving Charlie November. Come to think of it, that's probably where Bill67 dredged it up. Thanks for asking.

Title: Re: Overheating
Post by bill67 on 08/15/10 at 15:10:34

KK what weight oil are you using.

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 15:18:53


012A23302D2C420 wrote:
Versy, I think Charon is pronounced with a hard C, or a K. I have liked boats for as long as I can remember, and Charon was the ferryman who transported the dead over the River Styx into Hades.

Great, you've given your name a character I can visualize.
over the years I've confused the ferryman's name with carrion, it's no wonder why.

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 15:21:56


303B3E3E6465520 wrote:
KK what weight oil are you using.


it was 15w-40.  

Title: Re: Overheating
Post by spacepirates on 08/15/10 at 15:28:25

My savage is my only means of transportation too, so I understand your hesitation for opening her up. I had another member from the forum come help me open my carb up for the first time (and he has been incredibly helpful ever since, so thank you, BurnPGH).

It sounds scary the first time you do it, but there is nothing to it. it takes a while the first time (three hours maybe?), but after a while you can do it in your sleep (and in like 20 minutes).

I'm saying all this, because your bike should not die when riding due to overheating, and that I'd say it would be good to get the experience of the carb and to see what jets are in there and to make sure it is clean and what have you.

I don't remember the service intervals for valves, but it might be worth checking them too, just to make sure. that takes about 45 minutes to check them, another 30 if you have to adjust. Pick a weekend and get started early!

Title: Re: Overheating
Post by babyhog on 08/15/10 at 15:36:44

Charon, thanks for the explanation of your username, I've often wondered...

Vers, I have one of those stick thermometers, and hubby has a point-and-shoot digital thing (HVAC man, hi-tech toys).  Would it be accurate enough to check the temp as soon as I pull in the garage after a 1/2 hour ride or so??  Leave it running, or shut it off to check it?  I'm curious about the temp.  What range should it be?

I'm considering going to synthetic oil with my next change, which is due.  Would like to test the temp now, before I get it changed, then check it later for reference.

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 15:40:54

STOP HIJACKING MY THREAD!!  (hehe)

I can hijack my own however....<3 piglet

Title: Re: Overheating
Post by kk lewi on 08/15/10 at 15:42:38

Suki Love is full up with Rotella syn.  Let ya know on the results.

Title: Re: Overheating
Post by babyhog on 08/15/10 at 15:45:12


353821232C2A2C4D0 wrote:
STOP HIJACKING MY THREAD!!  (hehe)

I can hijack my own however....<3 piglet


Me so sowee... :-[

Title: Re: Overheating
Post by verslagen1 on 08/15/10 at 15:51:58


5053525F5D473E0 wrote:
Vers, I have one of those stick thermometers, and hubby has a point-and-shoot digital thing (HVAC man, hi-tech toys).  Would it be accurate enough to check the temp as soon as I pull in the garage after a 1/2 hour ride or so??  Leave it running, or shut it off to check it?  I'm curious about the temp.  What range should it be?

After a 1/2 hour ride at V1 speed  ;D , 85°F air, 178°F oil cover, and 222°F head average temp's with a HF IR temp gage.  With RotSyn oil.

Title: Re: Overheating
Post by RTC on 08/15/10 at 20:53:05


6D60797B747274150 wrote:
[quote author=352631302F2224262D72430 link=1281890989/15#18 date=1281907231]cruising at 40/50 should be just fine.  weather you did or not, stopping for a sign shouldn't be an issue either.

backfire on shutdown tells me, your idle mixture is a bit lean, is it a poof, pow or hit the dirt KERPOW?

btw, running hot tells me your main could be lean too.

while riding, are your legs feeling real uncomfortable on the pegs?

if you got and thermometer, the kind with a probe like for sticking in meat, or go to harbor freight and get a IR thermo  read the temp off the oil cover and head, just bellow the plug for the cam.  then I can give you a relative reading off mine.


I think I am at 1 3/4 turns out.  I did 1/4 turns when I first got her (bought with 5 turns out!  :O) from zero.  At about 2.5 turns out I get a black sparkplug.  The backfire is no poof, it's more like pow but not hit the dirt.

It doesn't seem overly hot, or hasn't, until this last month (since I cooked her the first time).  Now I can noticeably tell she's hot when she shuts down.  My poor baby.  :(

I have no idea about the jets and such.  It does have a custom muff so the previous owner could have tweaked them.  She's my only mode of transportation atm so I'm worried about taking the carb apart.[/quote]
I've been messing with my jets a lot lately and I do a main or pilot change in about 3-5 minutes. With the carb on the bike all you have to do is remove the four screws on the bottom and drop the bowl. The bowl will come off and so will the bowl gasket. Then just unsrew the jet and put the next size in. Replace the bowl with the gasket on it, tighten the four screws, turn it on, re-tune the air screw and ride.

Title: Re: Overheating
Post by BurnPgh on 08/15/10 at 21:30:26


626170727461786370657462110 wrote:
My savage is my only means of transportation too, so I understand your hesitation for opening her up. I had another member from the forum come help me open my carb up for the first time (and he has been incredibly helpful ever since, so thank you, BurnPGH).

It sounds scary the first time you do it, but there is nothing to it. it takes a while the first time (three hours maybe?), but after a while you can do it in your sleep (and in like 20 minutes).

I'm saying all this, because your bike should not die when riding due to overheating, and that I'd say it would be good to get the experience of the carb and to see what jets are in there and to make sure it is clean and what have you.

I don't remember the service intervals for valves, but it might be worth checking them too, just to make sure. that takes about 45 minutes to check them, another 30 if you have to adjust. Pick a weekend and get started early!

That reminds me...you ever get your buggered up mix screw switched out with mine or did you just swap carbs and make it easy on yourself? In any case, dont forget...you owe me a stock carb with/without buggered up screw. >:( 8-)

Title: Re: Overheating
Post by Oldfeller on 08/16/10 at 01:32:51

Go back to the main issue, when it dies on you.

If it will crank over freely but not start you don't have an oil failure -- oil failure would be it wouldn't move or would crank over only very slowly.

This takes place after riding some .... at medium high speed?


========================   hummm ??


Jest for the shits and giggles, try going around on PRIME for a day or two to see if the issue stops.

(smells a bit like my petcock issues from a while back, it does)

Petcock issues can behave illogically and yes there is always gas showing in the clear fuel filter when the petcock is showing off its butt with poor fuel flow.

-- the gasoline jest isn't progressing along down the little black tube very well like it ought to.  

The bowl in the carb is near empty (but it don't show) and it takes a while to fill back up and that give you all sorts of false leads to chase because it is all so illogical and strange ...

Running on PRIME will do away with a lot of this and give you confidence that your engine ain't shot or hurt, etc. because your power will suddenly come back and your bike will run right again.



Low vac petcock issues (chronic low gas level in the bowl due to poor fuel flow) can seem a good bit like a dying bike ....


It also mocks all the symptoms of "lean running" which is what you are describing above.

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 18:23:30

kk, was finally able to get back out on her today.  I'm still confused, but leaning towards petcock...  

I rode about 6 miles and she shut down.  This was in Prime.  When I started the ride my fuel filter was about 1/4 full.  I watched the filter slowly drain the whole ride until it stopped.  Figured I'd follow it out until the end.   :D

I tried restarting in prime and iirc I got it started (she shut down several times on the way back home), but stopped again shortly.  I bent down and watched the fuel filter as I cranked in prime and saw no fuel flowing to the filter.

I switched to reserve and saw fuel flowing to the filter.  Switched to run and saw fuel running to the filter.  I got it started after a few minutes of trying (assume I had to fill the carb), and off I went!  Until it stopped again.   >:(  Fuel filter empty...

Kept her in reserve and saw fuel once again flowing to the filter.  I booked it home!  Wish I could have retrieved the Raptor* petcock I bought recently.  Stupid Post Office was closed.  Interestingly enough, I bought the new petcock before all this started happening!  Maybe the one I have on now got mad at me?   ;D

I did give the cycle a few minutes before restarting each time.  I don't know why but at the time I thought it was heat related.  Could still be /shrug

*I bought the Raptor 660.  Was this the right one??  I saw several different numbers and just picked the one I thought best...or maybe it was the cheapest.  

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 18:27:05

btw Oldfeller could you pls explain to me how a full fuel filter could be petcock related?  Logically that doesn't make sense to me (tho that appears just to be the case)

Title: Re: Overheating
Post by verslagen1 on 08/20/10 at 18:29:05

pull the lever towards you for prime.
straight down for on
forward for reserve.

other possibility is a clogged filter.

and w/o it running, I never saw my filter fill.

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 18:33:17

exactly my friend.  That is the way I moved the valve.  :)

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 18:38:34


564552534C4147454E11200 wrote:
and w/o it running, I never saw my filter fill.

I only saw it filling when starting.  Just a few dribbles as it cranked.  Twisting the throttle when not cranking did nothing in any valve position.

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 19:05:22

http://i1017.photobucket.com/albums/af295/xulnaga/IMG_1532.jpg

This tube is quite pinched.  What is it?  I see it in the manual and it looks similar but couldn't find what it is.  Maybe it's too pinched?

It comes from under the tank and goes somewhere behind.  I'll have to take the tank off for the new petcock anyway...

Title: Re: Overheating
Post by verslagen1 on 08/20/10 at 19:08:45

that's the breather tube, should be on the other side of the throttle cable.

just pull the back part forward wiggling up and down.  there might be a clamp too.  pull it out and re-route.

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 19:20:32


667562637C7177757E21100 wrote:
that's the breather tube, should be on the other side of the throttle cable.

just pull the back part forward wiggling up and down.  there might be a clamp too.  pull it out and re-route.


hmmm, this could be the problem then! (in prime anyway?)  Little air is getting in and thus can't push fuel down?  Could also prevent a good flow in either on or reserve?  amiright??   8-)

Title: Re: Overheating
Post by verslagen1 on 08/20/10 at 19:29:35

breather tube for the crankcase.

but hey, you might be on to something, your vent for the tank may be clogged.  you can either crack the gas cap next time or take it apart and clean it.

non california caps have an in vent and an out vent.
california caps only have an in vent.  the out is plumbed to a carbon canister under the swingarm.  then up to the carb.

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 21:10:25

bah, not it then.  I've heard it hissing out the cap, and just the other day when I came to a quick halt and gave it a good slosh.  

Title: Re: Overheating
Post by verslagen1 on 08/20/10 at 21:11:18

that's out, not in

Title: Re: Overheating
Post by kk lewi on 08/20/10 at 21:40:28

oh, well it was an indication none the less.

Title: Re: Overheating
Post by Oldfeller on 08/21/10 at 02:06:32


Next step is to put in the Raptor petcock and see if problems simply go away.

 =============

Fuel level in fuel filter is sometimes deceiving when you got a bad stock petcock -- when you run it empty due to the petcock malfunctioning it takes a while to fill up first 1) the filter 2) the lines 3) the bowl ---- but note the fuel filter may retain a large bubble of air as the fuel trickles through it to get to lines and bowl.

The delay filling everything up is confusing as heck.   The retained air bubble is confusing.   The fact the bad petcock is still "dribbling" fuel to you at a reduced rate which may or may not be keeping up with engine use is confusing.  

The whole durn thing can be confusing ....

Put in the Raptor and simplify your life.  

Bam -- turn it on and fuel is there.   Everything stays full.  Bike runs good.  Jetting issues go away.  Hot running engine issues go away.

Your bike is back ....

Life is simple again.

Title: Re: Overheating
Post by verslagen1 on 08/21/10 at 07:12:31

simple till you forget to turn it off...

Title: Re: Overheating
Post by ralfyguy on 08/21/10 at 14:41:55


263522233C3137353E61500 wrote:
simple till you forget to turn it off...

Yeah and whoever says they never forgot, is lying!  :)

Title: Re: Overheating
Post by BurnPgh on 08/22/10 at 15:25:21

I've never forgotten to turn it off...I have, however, forgotten to turn it back on, forgotten to attach the hose to the petcock after doing work and ended up spilling gas everywhere, and Ive forgotten to turn it from reserve to on after filling up.

Title: Re: Overheating
Post by kk lewi on 08/25/10 at 17:50:56

update:  good and bad news!

Good:
Super Sexy Raptor 660 installed.

http://i1017.photobucket.com/albums/af295/xulnaga/IMG_1569.jpg

Bad:
Ebay foiled!  darn thing leaks like a sieve while in reserve.

I couldn't take it for a decent ride with the installed leaky raptor.  We'll see with another Raptor.

Title: Re: Overheating
Post by verslagen1 on 08/25/10 at 17:59:48

probably made like out petcock.  so it needs a new o-ring.
take the face plate off and see what you can do.

Title: Re: Overheating
Post by kk lewi on 08/25/10 at 18:26:00

I was thinking of that too bro.  It has to be what it is.  Little gasket or, o-ring...

Title: Re: Overheating
Post by jsarsfield on 08/25/10 at 18:55:09


4F425B59565056370 wrote:
I was thinking of that too bro.  It has to be what it is.  Little gasket or, o-ring...


Hope you got a deal on that used Raptor petcock they can be had new for cheap.  Check out RonAyers.com.  Buying a used 4 wheeler petcock is asking for issues they are normally run in dirt and mud and not cleaned afterwards all it takes is a couple pieces of sand in the valve to bugger up that O-ring.  Hope its just the o-ring.

Title: Re: Overheating
Post by kk lewi on 08/26/10 at 17:22:41

got it for $15 shipped.  So yeah, prob should have bought new.

I took it apart, greased up the o-ring and gasket, scraped out some deposits and it seems to have worked.  Hopefully tomorrow I test it out and see if what I was thinking was overheating has actually been petcock.   Fingers crossed!  :)

Title: Re: Overheating
Post by kk lewi on 08/27/10 at 21:08:02


795A5250535A5A5344360 wrote:
Next step is to put in the Raptor petcock and see if problems simply go away.

 =============

Put in the Raptor and simplify your life.  

Bam -- turn it on and fuel is there.   Everything stays full.  Bike runs good.  Jetting issues go away.  Hot running engine issues go away.

Your bike is back ....

Life is simple again.

She's back! Took her for a nice long ride today and no problems.   :)


657661607F7274767D22130 wrote:
simple till you forget to turn it off...

What are the potential problems that can occur if the fuel is not turned off?  
I need to take the carb apart to really know what's going on there but once the float bowl is full the float looks like it closes a valve.  Valve closed everything stops there? (all just from manual pics)


18150C0E010701600 wrote:
explain to me how a full fuel filter could be petcock related?  Logically that doesn't make sense to me (tho that appears just to be the case)

It's always the simple things that confuse me..  Today I forgot to turn the raptor on and took off down the road.  Fuel filter was full.  Suki started exhibiting the same problems.  I remembered and quickly switched the fuel on, and I got a Eureka!  If no fuel is flowing in, it creates a vacuum, and no fuel can flow out.  I can be such an idiot.  

_______________

 I think Suki is all better now!  Thx so much for the help to you all   :D

Title: Re: Overheating
Post by verslagen1 on 08/27/10 at 21:36:14

If you leave it on... and the float valve fails... your carb will flood.

If you're lucky, it goes into the airbox.

If you're not... it goes into the intake... then into the cylinder... then into the crankcase, diluting your oil, which if you don't notice, is as good as running with no oil.

my advice, always park heading uphill.  good for the kickstand too.

Title: Re: Overheating
Post by Oldfeller on 08/28/10 at 06:39:48


In case Verslagen's evil boogie man "the float valve sticks" actually happens to you, you simply have to look at the oil level to decide if any gas got into your oil.  

If the oil level goes up -- for heaven's sake please change your oil.   Then replace your float valve so it doesn't happen again should you forget to turn your petcock off again.

Actually, the float valve sticking is pretty rare.   Gas actually making it into your oil is even rarer than that.

But yes, it can happen -- if it does check your oil level immediately to see if you had any "adder" to your oil load.


=====================


Now, here is my statement and you guys all pile in on whether it is factual or not ....

We have had an order of magnitude more people have stock vacuum actuated petcocks go south and drive the people nuts with similar <low flow> problems to what kk lewi had than we have ever had crankcases of oil get temporarily contaminated with gasoline due to a Raptor being left on.

I think this statement is true --- who remembers otherwise?


===========================



Next controversial statement for you to agree or disagree with .....


If you can't decide if your oil level went up or not -- then the amount of gas that could have possibly made it into your oil is minor and will exit as gasoline vapor as soon as your oil gets operational hot for a while.  

This gasoline vapor will go through your breather tube and into your air box and get burned in the combustion process -- this backup system is built into the bike to handle combustion bypass gasses and will quickly purge some minor amount of gas in your oil.

Any detectably large amount of gas causing your oil level to go up noticeably warrants an immediate oil change -- don't risk your engine for a few dollars in oil change costs.

But please DO fix your float valve if you think it leaks -- fix it and don't have to deal with the issue again !!!

Title: Re: Overheating
Post by RTC on 08/28/10 at 08:34:41

twice i have gotten gas in my oil leaving my petcock on once with stock, so i replaced with raptor then it happened with the raptor so i got new float needle. i havent left in on in a while. each time it happened i didnt check my oil level i just went ahead and changed it. good thing too. it smelled more like gas than oil and came out of the crankcase like it was water.

Title: Re: Overheating
Post by Oldfeller on 08/28/10 at 09:49:01


That's one  (valve needle replaced after Raptor episode)

                  it is also one stock petcock failed to shut off and did same thing as leaving on the Raptor -- the key element here in both cases is a bad fuel float valve needle that needed replacing and apparently it caused the same oil in gas failure with a stock petcock too ?????

Title: Re: Overheating
Post by RTC on 08/28/10 at 10:24:16


61424A484B42424B5C2E0 wrote:

That's one  (needle replaced after Raptor episode)

                  it is also one stock petcock failed to shut off and did same thing as leaving on the Raptor -- the key element here in both cases is a bad fuel float valve that needed replacing and apparently it caused the same oil in gas failure with a stock petcock too ?????

yep

Title: Re: Overheating
Post by oldfield429 on 08/28/10 at 18:30:47

Those float valves are so much fun ain't they? Grrr jus had issues with mine, only needed a clean up though and she's fine :)

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