SuzukiSavage.com - Bike dies going down hill

Welcome, Guest. Please Login or Register :: View Members

SuzukiSavage.com › General Category › Rubber Side Down! › Bike dies going down hill

(Moderators: verslagen1, Dave, Serowbot)

‹ Previous topic | Next topic ›

Pages: 1 2

Bike dies going down hill (Read 257 times)

wolfmrp Senior Member Offline SuzukiSavage.com Rocks! Posts: 259 Portland Or	Re: Bike dies going down hill Reply #15 - 05/09/10 at 13:32:10 The high idle was masking the problem. When I set the idle lower she dies on flat ground from high rpm to rapid deceleration. There is no smoke or pop just a drop in rpm. With the idle set higher I can see the rpm dip unhappily low under rapid deceleration with the clutch in. Is this a carb issue? All help is appreciated.
Back to top	Common sense is nothing more than a deposit of prejudices laid down by the mind before you reach eighteen. --Einstein IP Logged

Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28637 Tucson Az Gender:	Re: Bike dies going down hill Reply #16 - 05/09/10 at 13:39:05 Sticky needle slide, maybe?... ..
Back to top	Ludicrous Speed !... ... ... IP Logged

dasch Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1137	Re: Bike dies going down hill Reply #17 - 05/09/10 at 14:10:01 Try on PRI. Same thing was happening to me. After decel, it would just die. Turned out the membrane in petcock had a small leak. I run it on prime for now.
Back to top	IP Logged

Charon

Serious Thumper

Offline

Posts: 1811
Harvard, NE
Gender: male

Re: Bike dies going down hill
Reply #18 - 05/09/10 at 14:24:26

I'm going to make a guess here that it is carburetor related. But it isn't a failure, as such. The idle jet fuel feed is at the front of the float bowl. On rapid deceleration the fuel sloshes toward the front of the bowl and makes the idle mixture go too rich. The rich mix causes the engine to stumble and maybe die. Decelerating and braking down a hill would make it worse. The engine can't quit turning until you squeeze the clutch, so it seems as if squeezing the clutch causes the engine to die. Once stopped the fuel becomes "level" again, so the engine will start right up.

Eschew obfuscation.

IP Logged

Routy Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2280 Winston Oregon Gender:	Re: Bike dies going down hill Reply #19 - 05/09/10 at 16:18:15 I'd buy that !
Back to top	Rich '07 S40 Blvd stocker, except drilled OEM exhaust and white spacer mod...1/2 (.055) IP Logged

wolfmrp Senior Member Offline SuzukiSavage.com Rocks! Posts: 259 Portland Or	Re: Bike dies going down hill Reply #20 - 05/09/10 at 22:45:50 Dasch, I am running a raptor petcock so i don't think that is the issue. Charon, That sounds reasonable to me. Any idea how I stop it from doing that? I am a fairly new rider could it be something in my breaking technique?
Back to top	Common sense is nothing more than a deposit of prejudices laid down by the mind before you reach eighteen. --Einstein IP Logged

dasch Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1137	Re: Bike dies going down hill Reply #21 - 05/10/10 at 00:29:47 No, definitely not the problem, wolf.
Back to top	IP Logged

BurnPgh Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1732	Re: Bike dies going down hill Reply #22 - 05/10/10 at 12:02:53 how far out is your idle mix screw? Might need to do a little idle circuit tuning. Messing with the mix screw should do. If its tuned right the engine should return to idle fairly smoothly even on rapid decel.
Back to top	IP Logged

verslagen1

YaBB Moderator
ModSquad

Offline

Where there's a
will, I want to be
in it.

Posts: 28884
L.A. California
Gender: male

Re: Bike dies going down hill
Reply #23 - 05/10/10 at 13:54:24

wolfmrp wrote on 05/09/10 at 13:32:10:

The high idle was masking the problem. When I set the idle lower she dies on flat ground from high rpm to rapid deceleration. There is no smoke or pop just a drop in rpm. With the idle set higher I can see the rpm dip unhappily low under rapid deceleration with the clutch in. Is this a carb issue? All help is appreciated.

AHA! (oops, missed your reply till now)
I know the answer, the mysterious air shutoff valve.
That little doohickie (triangle shaped diaphragm next to the idle mixture screw) is supposed to do something when the throttle is cut durring high vac conditions.
Start with a thourogh cleaning and inspection.
There's also been a discussion about shortining the spring to reduce backfire.

Versey's Place
Tech Section Index

IP Logged

wolfmrp Senior Member Offline SuzukiSavage.com Rocks! Posts: 259 Portland Or	Re: Bike dies going down hill Reply #24 - 05/11/10 at 14:03:52 I adjusted the mixture screw this morning and the idle seems more stable on rapid deceleration. I have not hit a hill yet but I think it may have been that simple. Thanks to everyone that posted. This forum is one of the best parts about owning a savage. Well... that and having a kick ass bike.
Back to top	Common sense is nothing more than a deposit of prejudices laid down by the mind before you reach eighteen. --Einstein IP Logged

Pages: 1 2

‹ Previous topic | Next topic ›

« Home