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Message started by MaxMayhem on 11/15/11 at 23:20:00

Title: Bike cuts out when throttling...
Post by MaxMayhem on 11/15/11 at 23:20:00

Hi all.  

Bike info: 2007 s40, totally stock, not even raptor etc.

Well bike has been running fine as of late, and I rode into work today with no issues, but today when I went to go home, the following happened.

I have the petcock set to prime, as the notorious seal inside went not long after buying it, so I don't think that is my issue.

Turned key on, got green light on 'dash', headlights etc fine.
started bike, idling fine.
Bike stops...this happens sometimes when starting from cold and not using choke, so no biggy.

Start bike again, no issue, give throttle slight turn, bikes sputters till it cuts out.

Hmmm, give some choke, start bike, revs higher as you would expect, leave for 5 seconds or so, turn off choke.  Bike still idling fine.
Put into 1st, gently releasing clutch while applying throttle, bike sputters to a stop.

Start again without choke, as by now I feel there is more than enough fuel (can smell fuel so fear flooding bike), bike starts but even in neutral slightest throttle bike dies.

Try starting again without choke, but apply small amount of choke while idling to see if revs go up.
They do, so turn off choke, try throttle, bike begins to stutter again, so release throttle and bike idles a bit roughly but stays on.

After a bit of this expermenting, now even applying choke, it cuts out.

Got wife to pick me up in car and take me home, so bike is currently at work waiting till tomorrow to have a look in any free time.

I have checked all hoses to/from carb are secure, no evident leaking of any fluids anywhere.
I will remove spark plug in morning to see what condition that is in.

Any thoughts?

Title: Re: Bike cuts out when throttling...
Post by verslagen1 on 11/15/11 at 23:41:45

Carb... any work done on it?

I'd drop the bowl and make sure the main wasn't rolling around in the bottom.

may just need a good cleaning.

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/15/11 at 23:53:57

No work done to carb recently.

My thoughts were either carb or plug.
But what did you mean by 'main'? The main part of the carb?

Sorry I am by no means any kind of mechanic, but can follow instructions easily enough.

I have used clymer to strip carb down to individual parts not long after getting bike, when I first had the seal issue with the stock petcock, so I'm confident enough to do that again to clean the jets etc. That was over a year ago just so you know it wasn't something recent.

Title: Re: Bike cuts out when throttling...
Post by Routy on 11/16/11 at 03:32:51

When the engines dies, loosen the drain plug on the bottom of the carb bowl, to make sure there is a continuous flow of fuel coming thru the petcock.....fuel line/filter.......and the needle valve float assy.
If very little gas runs out, it would mean that the main fuel flow to the carb is restricted somehow,.....either at the tank, or the needle valve/float.
If you have good continuous flow, it would seem you are into a restriction in the the carb circuitry itself, which would require cleaning.

If no fuel is leaking to the outside, I wouldn't suspect a flooding problem,.......unless like Versal said,....the main jet fell out.

Its always possible you have a coil/sparky problem.

on edit,.....
you speak of a nortorious seal problem,......care to explain that ?


Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/16/11 at 05:53:42

 
Now Routy, come on now, our vac petcocks are NOTORIOUS for failing in 2-3 different ways over time -- didn't you know that?

;D

This gentleman attempted to continue to use his stock vac petcock using the Prime trick for a while now (giving up his reserve function, but keeping the vac petcock body as a manual petcock).

He may be discovering a new vac petcock symptom that occurs when this Prime trick is done for a goodly amount of time, so we may all learn something new as we go through this one.  

He may have discovered failure mode #4 .....


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


Seriously, now that I've finished teasing with Routy over his perpetual petcocky blind spot ....

First off, whack your float bowl 3-4 times smartly with a big screw driver handle -- this will jar free a stuck float and get you running again if this was you problem (yeah, I know -- but it is cheap enough to do and stuck floats do happen occasionally with folks using stock petcocks)

The main they refer to is the main jet, the one the needle runs through.  Yes, folks have had them unscrew when they weren't put in with the correct torque from a previous tear down.

"Totally stock" likely means no fine paper pleated in-line fuel filter -- you may want to consider adding that while you are in there fiddling with the hoses, etc.  

You may want to do this just to cut down on any future carb problems (especially if you find any sediment or trash when you go into the carburetor).

Another item you might want to check if you do take the tank off, is to unscrew the vac petcock unit and take a look at the screen -- I had mine varnish up closed and had to spray it with carb cleaner just to open up the little pores in the screen mesh so gas could get through.

fuel & spark -- spark is easy and cheap to check (replace the plug and check spark on the new one)   Don't forget to clean all the sand and grit out of the spark plug hole area before removing the plug -- don't want any of it going down the spark plug hole to score up your cylinder walls.

My betting money is going on a carburetor problem, not spark.   Spark doesn't come and go (it just dies) and it can't give you fuel/flooding smells ....  

Float sticking can come and go and it can starve you if it sticks up, and it can flood you if it sticks down.   I'd carry a big screw driver with you for applying the 3-4 float bowl whacks until you get this thing all worked out.

Title: Re: Bike cuts out when throttling...
Post by Routy on 11/16/11 at 06:27:49

I had never heard of a "nortorious seal" problem w/ the petcock. I thought the question deserved just a simple answer,......and from the OP that posted it !

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/16/11 at 06:42:22

 
Routy, let's get the poor man's bike running before we play "petcock war" again ....

I think Max understands all about petcock failures already as he has already had one already and has dealt with it.


Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 11/16/11 at 06:59:12

I have the petcock set to prime, as the notorious seal inside went not long after buying it, so I don't think that is my issue.

Ive never hear of the diaphragm referred to as a seal either, but the context & knowledge of what IS inside the petcock made it simple enough for me. The diaphragm is notorious for causing problems, by leaking or being stiff & restricting fuel flow. I suspect its a cheap rubber being used. Seems to me the older models ran further on the factory cam chains & had fewer petcock failures.

Title: Re: Bike cuts out when throttling...
Post by Bubba on 11/16/11 at 07:22:22

What happens if you run it with the choke on? My brothers bike generally has to have the choke on for a few miles before he even tries to click it off (it surges a lot if he doesn't).
He rides very little and doesn't even want to mess with swapping out to larger jets so I figure it's his bike, he can do what he wants.

Title: Re: Bike cuts out when throttling...
Post by Serowbot on 11/16/11 at 08:39:40

Max,... you run with the petcock set to prime... but, you need to remove the vacuum line, and cap off both taps, (at petcock and right side carb)...
You likely have fuel leaking down that line, causing flooding...
;)...

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/16/11 at 09:01:46

Morning.

Thanks for the comments ppl.

Routy - I did mean the diaphram not seal issue, that is my non-mechanic term sorry.

Bubba - Tried that, died as well once throttle is twisted to take off.

Oldfeller - Will try 3-4 slaps with a screwdriver first see how that goes.  Cheapest option first eh :)

Serowbot - It's been running fine for well over a year with just the petcock set turn prime.  Could it just suddenly decide it needs vac line removed etc?


Title: Re: Bike cuts out when throttling...
Post by verslagen1 on 11/16/11 at 10:20:48

since it starts, the idle jet is fine.

my thinking is you twist the throttle, you either flood it out or stave it for fuel.

Flooding out could be caused by the main jet unscrewing and falling into the bowl.
Starving could be caused by a blocked jet.

drop the bowl off the carb and take a look at the main jet.

Title: Re: Bike cuts out when throttling...
Post by Serowbot on 11/16/11 at 10:37:55


406C75406C746568600D0 wrote:
Serowbot - It's been running fine for well over a year with just the petcock set turn prime.  Could it just suddenly decide it needs vac line removed etc?

Yup,...   block off those taps...  ;)....

Then, you will be completely bypassed from the vacuum circuit... if that don't fix it,... go on from there, but do that first...
If, either the diaphragm or the line starts to leak, just being on prime won't fix it...  you must block off that hose to prevent air or fuel leak......

http://i600.photobucket.com/albums/tt82/serowbot/plug.jpg?t=1251936339

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/16/11 at 12:43:39

 
Serowbot, you are describing an issue we already know all about.

-- the vac line being split wide open can supply extra air (an air leak)

-- the diaphragm cracking/leaking can supply extra fuel

These are both known failure modes.  Are you are saying because Max didn't block off or remove his vac line he set himself up for stage 1 and stage 2 and stage 3 of vac petcock failures to come see him on the known, well documented and properly appointed schedule?

Makes sense.   Don't mean it is what happened, but it makes sense.


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


Is this where I say "Max -- if Serowbot proves out to be right, you know what you might need to do about it (if you want to get your reserve function back anyway?)".   Plus, if you don't, you may well eventually discover that new failure mode #4 whatever it might be.

Ask Verslagen .... he is still assiduously avoiding acknowledging any of the further ways a vac petcock might could do your engine dirty.  


;D    ;D    ;D    ;D


The reason we call it failure mode #4 is that is Verslagen's current engine rebuild/replacement number that he is currently working on.


Title: Re: Bike cuts out when throttling...
Post by Howitzer on 11/16/11 at 13:23:57

This may be a newb question, but is it possible he's just running out of gas?  With the petcock set on prime, you never know when you're out of gas.

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/16/11 at 15:30:31

 
That's part of the joy of running in Prime -- getting stopped dead by the side of the road with no prior warning.

:P


Max might tell us if he had simply run out of gas (me, I wouldn't, I'd be too durn embarrassed).  

But seriously, every time you run it totally dry you run the chance of sticking the float because that's where the float likes to jam up, at the very end of its travel.

With a Raptor in place, you tend to stay at the midpoint of the float travel (where you are supposed to live all the time).  Having a reserve again means you don't get caught dead by the roadside like you can do running in Prime.  

$24 for a Raptor gets you some concrete benefits.


But your point is a valid one (embarrassing, but valid) ....  it fits all the symptoms.


Max has plenty enough suggestions from everybody now -- he'll get back to us with new information once he has a chance to work on it some.  

Once we have new data, we can refine and fine tune some.


Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/16/11 at 18:08:27

Howitzer - Fair question, but I did research here before using the prime fix, and I always fill up with fuel each night after work, which gets me home and back with at least quarter+ tank to spare.

But on a good note, I have got bike working fine again.
I cannot say for sure what worked as I had limited time to get everything done during work hours, so I just did everything I could, as quick as I could, but here's all I did.

Took out spark plug - Black as the ace of spades...brushed down with a wire brush, reinserted (Will be getting new one very soon)

Removed tank to get to carb and removed carb.
Stripped carb down on work bench, removed all jets, and any moving parts, and anything that would unscrew and sprayed crc 5.56 all through the beast.
Then allowed to airdry, then used my battery charger/compressor to blow out each jet and every hole, chamber, etc on the carb till I could see no tiny specks anywhere and the jets appeared completely clear.

Put all back together, mucking around to get carb and line full of fuel again and took for blat around the city block.

No cutting out, or dying at lights etc, so at this stage all appears fine.

Serowbot - I will get around to blocking those vac lines etc one weekend when I get time, but for now I'm just stoked I don't need to fork out all my xmas money on the bike (again!)

Thanks for the help as usual ppl, always good to know I can rely on you folks. :)

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/17/11 at 19:53:47



If plug was black and fluffy -- you got extra fuel getting into the system somewhere.    Blockoff your vac tube and put the cap on the nipple.

If it was black and greasy -- rings or valve seals leaking oil

Check again when you get the new plug ready -- black & fluffy and you ain't done yet

("I'll be back" sez ol' Arnold the VacTerminator)

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/20/11 at 17:18:34

Ok, can anyone tell/show me exactly which parts to cap, and how to cap and with what?

May seem dumb question to most of you, but I'd hate to do a 'I-know-what-I'm-doing' fix and block the wrong parts :(

Title: Re: Bike cuts out when throttling...
Post by Serowbot on 11/20/11 at 17:40:46


5E79617F626C7364160 wrote:
This may be a newb question, but is it possible he's just running out of gas?  With the petcock set on prime, you never know when you're out of gas.

Posted pic on page one...

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/20/11 at 18:28:29

Sorry Serowbot, but at my work the pics you posted are hosted at a blocked filehoster, so they don't show.
All that appears is a fullstop. "."
Only pictures uploaded to this forum show.
I will have to have a look when I get home.

Thanks for telling me or I would never have known.

Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 11/20/11 at 20:16:04

I cut out pretty bad when Im being throttled myself..

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/20/11 at 21:12:51

some ppl quite enjoy being cut out during throttling i hear ;)
Any one for kung fu :)

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/24/11 at 18:13:01

Update:

Bike no longer cuts out, but...

The speedo-cable is very slowly leaking what appears to be oil at the engine end. Not much at all, really a very slow trickle, but never did it before the issue I had at beginning of this thread, and I have removed it previously.

Should the thread coming off the engine at the base of the cable be totaly under the screw nut because mine still has 1-2 full rotations of thread showing and I can't for the life of me get it any tighter.

The washer/seal is still there, and appears fine, and I have made sure the cable has been correctly inserted into the notch on the engine end before tightening.

Also now in fifth gear, bike "stutters" like it is having the fuel supply choked slightly, but tends to "stutter" back to normal after a few seconds, but continues to do this intermittently while in fifth gear only.
In fourth, bike runs perfectly fine.

Could this be a result of having now closed off the vac lines as Serowbot suggested, there is now no vac-assisted 'pull' of fuel while in prime on petcock?.
I know prime means it is now gravity fed, but I'm going with the theory that the vac lines being opened helped the flow to some degree?

Or could it be because the spark plug was fouled and while I wire-brushed it up, I am only getting a replacement plug tonight?  I don't 'think' this would be the reason given that right before the cutting out issue, plug would have been fouled and fifth gear was fine.

Any ideas appreciated  ;)

Title: Re: Bike cuts out when throttling...
Post by verslagen1 on 11/24/11 at 18:29:33

There's some pressure in the case due to the 'breathing' of the engine and  blow by.  Check your breather tube to make sure it's open.

And most people lose this seal and replace it with a o ring.  yours may just be worn out.

Fuel is always gravity fed and don't think that the puffing action of the petcock aides in fuel flow in any way.  The petcock opens at a low pressure and bottoms out against the flange.

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 11/25/11 at 02:55:15

 
<Also now in fifth gear, bike "stutters" like it is having the fuel supply choked slightly, but tends to "stutter" back to normal after a few seconds, but continues to do this intermittently while in fifth gear only.
In fourth, bike runs perfectly fine.

Could this be a result of having now closed off the vac lines as Serowbot suggested, there is now no vac-assisted 'pull' of fuel while in prime on petcock?.
I know prime means it is now gravity fed, but I'm going with the theory that the vac lines being opened helped the flow to some degree?>



Durned if that doesn't sound like a classical vac petcock fuel starvation symptom.  But you are running in Prime, right?

This sounds very basic (please bear with me) but did you notice the little cast in place arrow on the lever of the stock vac petcock?   Where it points is what is going on with the petcock and that is ass backwards from what the entire lever points towards ....

We had a fellow who used the entire lever as his mental pointer instead of the little cast in place arrow and he was quite confused by what was going on with his bike accordingly and nobody could help him until he realized what the cast in place arrow on the lever meant.

I know, it is stupid and possibly sorta insulting (I apologize) but I gotta ask it because it has happened before.


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


Next, the screen mesh pores on the stock vac petcock could be blocked with varnish film not giving you enough gas flow at full speed.  To check it, pull it off the tank and spray it out with carb cleaner until all the pores in the screen mesh are open.


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



Might I also suggest for consideration that you simply remove your stock vac petcock completely and replace it with a Raptor?  This $24 spent allows you to completely ignore all the many possible vac petcock related symptoms/errors/strange quirks in your chase for proper throttle function as you won't have a vac petcock to confuse things any more.   This will also get you back a reserve function which you have given up while running in Prime.

Title: Re: Bike cuts out when throttling...
Post by Serowbot on 11/25/11 at 07:51:29

... could still be sucking air or fuel down that vac line,... causing stumble..
Cap it... at the petcock and at the carb...
;)...

Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 11/25/11 at 09:44:40

You can just cut the line in the middle, fold it back on itself on both ends & zip tie both ends & see.. If that solves it, then you can make it pretty.

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 11/25/11 at 12:31:24

"I know, it is stupid and possibly sorta insulting (I apologize) but I gotta ask it because it has happened before."

Don't apologize,that's the kind of small thing I would completely overlook and take for granted.  I will check when I go out to garage later on.


"... could still be sucking air or fuel down that vac line,... causing stumble..
Cap it... at the petcock and at the carb...
Wink... "

I capped where you had in the picture.  So I assume I've capped at the carb, but you advise capping not at the hose end with the golf tee, but at the other end of the hose off of the petcock..yes?


"Next, the screen mesh pores on the stock vac petcock could be blocked with varnish film not giving you enough gas flow at full speed.  To check it, pull it off the tank and spray it out with carb cleaner until all the pores in the screen mesh are open."  

I had thought to take a squiz at that mesh, as that was what seemed next in the logical procession: fuel in tank, fuel out tank through petcock, petcock has filter (maybe it's blocked).

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 12/05/11 at 17:06:17

Latest update.

Since pulling everything apart as described earlier, I have noticed I am going through about 1-1.5 litres of fuel more per day.

No leaks I can find or tell-tale signs...except Oldfellers comment on the plug.

When I removed the old plug to put the new one in, it was again black.
It was black and fluffy, so added to my quite large increase in fuel use while still going the same distance as before, I'm with you on there being some kind of fuel leak.

Where though I have no idea.

Still got the stumble in fifth, and it sometimes occurs in fourth when trying to accelerate quicker than normal (overtaking cager's)

Haven't yet got around to yanking off the tank and checking the filter, but while it may be contributing to the stumble it doesn't explain the increased fuel use.

Can't find a darn replacement seal or oring to match for the speedo cable yet either.

Oldfeller - I'd love to get a raptor and lose all these issues, but here in nz it won't be $24, and I will need to shop around online I think for a raptor unless some other kiwi's here know where I can get one from.

verslagen1 - When you mentioned checking the breather tube was open, are you refering to the 2 tubes that come off the top of the carb?
I'm a bit unsure which tube you mean sorry.

Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 12/05/11 at 17:57:46

Just grab an O ring thats a little too big, if you cant find one thats Just Right. Lay it on the workbench & take a razor blade & cut it. Dont cut it straight across, cut it at an angle, more than 45 degrees, then, overlap to the right size & cut the thing off again, so the angles lay together. Ive done that twice, neither one leaked,

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 12/05/11 at 19:28:04

 
What shape is your air filter in?


A very old dirty all plugged up air filter can cause increased gas consumption and a black fluffy plug.

Title: Re: Bike cuts out when throttling...
Post by verslagen1 on 12/05/11 at 20:51:40


517D64517D657479711C0 wrote:
verslagen1 - When you mentioned checking the breather tube was open, are you referring to the 2 tubes that come off the top of the carb?
I'm a bit unsure which tube you mean sorry.

The breather tube I was referring to is the big hose on top of the head, leads to the air filter.

But you bring up a good point, you got odd carb issues, check those carb vents.  many a bug has gotten itself stuck in odd places.  make sure they're open too.

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 12/12/11 at 13:03:10

OK now that I know which tube you meant I can respond correctly.
The breather tube is NOT connected to my air filter.

The reason for that is that about 1 year ago, I put the bike in for a service and when I picked up the bike, I got about 2-5km from the stealership and oil was blasting over my right leg and the bike.

Rang the shop and made them come pickup the bike and fix it.

Their response was they couldn't work out why oil had blasted out, but could tell me it appeared to be (I think their description was) blowback from the breather tube.

They disconnected the tube from the filter and no more problem.

That was a long time ago, and I semi-reguarly pull out the air filter and very gently clean all the bugs etc out of it, but if some crap has gotten stuck inside the airfilter tube where the breather hose connects to it then maybe something is partly jamming the tube?

Will take a squizz at it during the xmas break.  Bike is currently still going through more gas than usual and the stuttering in 5th and sometimes 4th hasn't gotten worse but hasn't stopped either.

May need to simply strip down the tank etc, clean everything including inside of all the tubes and put back together.

Is there anything I may have not have tightened correctly or missed when I stripped down the carby that could be causing the fuel usage/internal leaking?

Title: Re: Bike cuts out when throttling...
Post by verslagen1 on 12/12/11 at 14:19:43


6C40596C405849444C210 wrote:
Their response was they couldn't work out why oil had blasted out, but could tell me it appeared to be (I think their description was) blowback from the breather tube.

They disconnected the tube from the filter and no more problem.

Is there anything I may have not have tightened correctly or missed when I stripped down the carby that could be causing the fuel usage/internal leaking?

They probably overfilled it.  It doesn't take much for me to get oil blown up the breather tube.  I'd put it back and salle la gare.  Or you should at least put a filter on the end of the tube to keep from sucking all the dust outta the air and into your engine.

carbs are finiky things, doesn't take much to throw them off.  accept it, take it apart, take a can of carb cleaner, blow it out again and put it back together.  Keep doing it till it runs right.

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 12/12/11 at 18:30:02

 
I think I smell an old blocked up air filter, I do ....

If you have only periodically pulled it out and removed the bugs and trash from it, and we also know it has survived an oil sump overfill puke event into the air box a time or two ....

Then what you have really got is an oil impregnated dirt saturated partial air blockage instead of a free flowing air filter.

And no wonder your bike runs rich (black fluffy plug) and it acts funny.

Stock air filters must be dry (never wetted with water or oil) and clean for them to work correctly.


Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 12/13/11 at 16:50:40

I hear what your saying oldfella, but when the oil blew back it did not go into the air filter believe it or not.
It blew out from the top of the engine somewhere.
The filter was still bone dry and clean.

I will look at getting a new filter anyway as it cannot hurt to replace it.
Anyone got a photo of what a new filter should look like so I can compare with mine, just for curiosity sake really.

Title: Re: Bike cuts out when throttling...
Post by Boofer on 12/13/11 at 22:22:05

Savage air filter from HiFloFiltro Part #HFA3608. ($15)
Raptor Petcock part # 5LP-24500-01-00 ($25)

Don't have a picture handy, but the filter is about 1/2" thick and a WILD guess at 6x8" with a small bracket sticking out to install with screw. Direct bolt up--no problem. Paper element. Suzuki OE air filter is around $40.

Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 12/15/11 at 06:47:15

Suzuki OE air filter is around $40.

Which is about $20.00 too much.

Title: Re: Bike cuts out when throttling...
Post by baker87 on 12/15/11 at 19:37:58

i dont think its the air filter, i would check vacuum with a mercury vacuum guage.... u might be loosing vacuum and fuel through a diaphragm in the carb that was installed wrong....

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 12/15/11 at 19:55:01

Hmm baker87, you might be on to something there.

As I took my carb out and apart while at work I did rush, and it is totally possible I didn't sit the diaphram in correctly when putting back together.

Another thing to add to the check list during xmas.

To those providing help on the air filter, I was not clear what I meant.

I was hoping for a picture to compare the state of my filter to a 'clean' filter.
Getting a new one isn't a problem for me, just wanted to see if it's condition would indicate it was full of crap or not to rule it out.

Thanks for the info though peeps.

Title: Re: Bike cuts out when throttling...
Post by Oldfeller on 12/15/11 at 20:57:19

Here's a dirty one ....

http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1183640744

or it would be if all my pics at Hunt101 just hadn't gone to never neverland with the site itself.

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 01/15/12 at 18:57:51

OK. Final update (I hope)

All problems pretty much gone now.
I took carb out again and rechecked to make sure I hadn't accidently pinched the diaphram or something equally stupid (and totally possible for me) but it was near perfect, including gunk in jets etc.

So I went with Oldfellers idea and it was the filter!

Got a new suzuki one through the stealership (was half the cost of an aftermarket one) popped it in when I got home from work, cleaned out any crap in the airbox first, and next morning, it went fine so opened her up and there was a little bit of stutter that first ride, but it was pretty much all gone by the ride home after work.

2 days or so after using new filter, gas use has now dropped back down to normal levels.

Justin_o_guy2 - hold on to your wallet mate, cause the suzuki filter was $78 (new zealand)

I don't have time to muck around with ebay etc sites as this bike is my only way to work, so just sucked it up and got it.

Really couldn't spare the $ but decided I was spending 2$-3$ extra per day on fuel, so if I took too long the filter would have paid for itself before I had even sourced a cheaper one.

So only got the leaking speedo cable to fix now.  Tried cutting one to fit, and it worked mostly but small amount of oil still coming out, so will try again with more precision less haste this time.

Title: Re: Bike cuts out when throttling...
Post by Routy on 01/16/12 at 05:46:51

Well Helleyluyah,....score one for OF !

Its going to be very hard for him to ever believe that anything on a Savage could be fixed w/o doing a Raptor !!

Title: Re: Bike cuts out when throttling...
Post by justin_o_guy2 on 01/16/12 at 06:42:12

Justin_o_guy2 - hold on to your wallet mate, cause the suzuki filter was $78 (new zealand)




OWCHIE!!

OF has a mod that works really well & costs almost nothing.. After you blow that paper one clean a few times, you may want to try it.

Title: Re: Bike cuts out when throttling...
Post by MaxMayhem on 01/16/12 at 14:34:21

I think I saw that post awhile ago...is it the one with the oil in the homemade filter held in with ties?

Looked good, at least up to the point he mentioned after x amount of time the oil started to 'breathe' it's way out of the filter.

Sounds messy but definately worth it for the $ savings.

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