SuzukiSavage.com - might be your petcock even if vac line is 'dry'

furious70

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Chicago

might be your petcock even if vac line is 'dry'
07/09/09 at 13:06:47

Been fighting ridability problems with my wife's savage for 2 yrs off and on with it being fine one day (or hour) and pig rich the next. 2 different carbs on and off several times with various internal parts.
Before I did any of that I, per advise on here, did check the petcock vac line, and it was always dry. I never thought to pull it off the instant it started acting up though.....
Finally a friend suggested just trying it manual for awhile with the carb plugged and the line loose. Been running perfect for a month now, no issues at all, and a dry line.
I don't really know what would cause intermittent failing of the petcock, as a tear in a diaphragm should always be a problem, but however it's screwed up it appears to have been the problem all along. Oh well, ended up with a spacer mod and the stock jet and it runs better than it ever has.

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2002 Kawasaki Mean Streak (mine)
1999 Suzuki Savage (hers)

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PTRider Senior Member Offline Posts: 397	Re: might be your petcock even if vac line is 'dry Reply #1 - 07/09/09 at 19:21:18 Is the vacuum line in good condition? Is it cracked or pinched?
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justin_o_guy2

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What happened?

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East Texas, 1/2 dallas/la.

Re: might be your petcock even if vac line is 'dry
Reply #2 - 07/10/09 at 03:50:40

A cracked or pinched vac line wouldnt make it rich. It would lose fuel, because the petcock diaphragm wouldnt get the vac needed to deliver fuel unless it was in the Prime position.

Finding the problem in the petcock would be really good for everyone.
Good test to "prove" the petcock, even tho it wasnt demonstrating that the problem was coming from the petcock. Thank you for the post.

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The people never give up their liberties but under some delusion.- Edmund Burke.

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furious70

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Re: might be your petcock even if vac line is 'dry
Reply #3 - 07/10/09 at 06:33:25

Vac line is in good condition, but the above post is true about that anyway.

another question, why is converting to a raptor petcock always suggested? The OEM one seems to work fine using the PRI side to run and turning it to on when shut off. Or when the petcock actually fails with fuel coming out the vac line does it leak through even when shut off and the line disconnected?

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2002 Kawasaki Mean Streak (mine)
1999 Suzuki Savage (hers)

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: might be your petcock even if vac line is 'dry Reply #4 - 07/10/09 at 06:35:54 One prob with running on prime is that IF you run out of gas, you are really, no kidding, OUT, no reserve.Far as I know, that is the only downside.
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furious70 Junior Member Offline {insert text here} Posts: 81 Chicago	Re: might be your petcock even if vac line is 'dry Reply #5 - 07/10/09 at 06:53:25 true, though the bike is so far only used for pleasure riding around the neighborhood and such, my wife doesn't like to go on long trips with it.
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Serowbot

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OK.... so what's the
speed of dark?

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Tucson Az
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Re: might be your petcock even if vac line is 'dry
Reply #6 - 07/10/09 at 11:02:21

When my petcock went bad, the problem was intermittent too. And there was no gas in the vacuum line,... until you sucked on it. Then the gas flowed. And that's what the engine does,... suck on it.
So the real way to test it for sure is to suck.
Then spit, don't swallow.... Huh

I don't always mention it when I'm recommending testing, for several obvious reasons....

Let the puns begin!.... Cheesy

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Ludicrous Speed !... ... Huh

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furious70 Junior Member Offline {insert text here} Posts: 81 Chicago	Re: might be your petcock even if vac line is 'dry Reply #7 - 07/10/09 at 11:09:26 hopefully when the next person searches for this topic this thread will help them out!
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MMRanch Serious Thumper Offline Evil flourishes if Good Men do Nothing. Posts: 5837 LYNCHBURG TN Gender:	Re: might be your petcock even if vac line is 'dry Reply #8 - 07/10/09 at 12:54:37 Just replaced mine with a raptor 350 (1/4" spacer needed) no vacume line and no problem.
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Boule’tard Serious Thumper ModSquad Offline Master of the Obvious Posts: 1620 Austin TX Gender:	Re: might be your petcock even if vac line is 'dry Reply #9 - 07/10/09 at 20:54:53 MMRanch wrote on 07/10/09 at 12:54:37: Just replaced mine with a raptor 350 (1/4" spacer needed) no vacume line and no problem. Where do you fit a 1/4" spacer? I got a Raptor petcock which I'll probably install tomorrow, but I thought it was a straight bolt-in replacement.
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tomtaz1975 YaBB Newbies Offline Let's Ride! Posts: 34 Milwaukee, WI Gender:	Re: might be your petcock even if vac line is 'dry Reply #10 - 07/11/09 at 08:12:53 my understanding is a raptor 660 petcock is a direct replacement. I hope so, because that is what I got, just have to install it.
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Boule’tard Serious Thumper ModSquad Offline Master of the Obvious Posts: 1620 Austin TX Gender:	Re: might be your petcock even if vac line is 'dry Reply #11 - 07/11/09 at 09:40:19 Oh. Raptor 350 vs. 660. <bonks forehead> We should be good with PN 5LP-24500-01 and no spacer.
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Digger

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Ya gotta be tough to
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Colorado Springs, CO
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Re: might be your petcock even if vac line is 'dry
Reply #12 - 07/15/09 at 20:08:46

furious70 wrote on 07/10/09 at 06:33:25:

....another question, why is converting to a raptor petcock always suggested? The OEM one seems to work fine using the PRI side to run and turning it to on when shut off. Or when the petcock actually fails with fuel coming out the vac line does it leak through even when shut off and the line disconnected?

furi,

I was running around like that with mine (see signature) for almost three years without any discernible problems.

I'm switching to a Raptor petcock, however. My rationale is that I'm pretty sure the OEM petcock has a bad diaphragm in it. I cannot be sure the problem will not continue to get worse and progress to a situation where the petcock fails to the point where fuel can flow even when the engine is not running and the petcock is set to ON. Then, if I get a leaky needle valve in the carb, it's "flood city."

You pays your pesos, you takes your chances.

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Digger
2001, Metallic Glacial Blue, Raptor Petcock, Verslavy (first hole) (otherwise, mechanically, the bike is stock), 13,xxx miles
I don't own a cage.
www.astronautbiker.com

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