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Message started by Hashbrown on 06/25/10 at 23:18:36

Title: brand new petcock issue
Post by Hashbrown on 06/25/10 at 23:18:36

so i recently just purchased a 95 savage through a private sale. initially it was having sputtering and dying issues, bike hadnt been ridden in a year. so the previous owner yanked the carb and cleaned it, flushed out the tank and had fresh gas in it, and also replace the petcock with a brand new OEM petcock. when i rode it home it started to sputter again so i switched it to prime. ran like a dream after that!

ive been digging around the forum for the petcock fix, but what would be the issue if you already replaced it. i wanted to go to the raptor but i figure this guy just replaced it with an OEM one, i might as well get his money's worth out of it. the only thing i can think of is the vacumm line is bad. can anyone think of anything else that would be the issue

Title: Re: brand new petcock issue
Post by verslagen1 on 06/25/10 at 23:49:15

If it is a brand new one then it's the vac line.
if it looks like it's in good shape, put clamps on the ends.

Title: Re: brand new petcock issue
Post by Routy on 06/26/10 at 05:03:41

If the vacuum operated petcock valve is good, and the vacuum supply line is good, then I could suspect a low vacuum supply,....which could mean leaking exhaust and/or intake valves,......symtoms of which would be lack of compression and power.

Title: Re: brand new petcock issue
Post by Hashbrown on 06/26/10 at 07:00:41

if it was an exhaust or intake valve issue wouldnt that effect the performance even when running on prime? she runs beautifully on prime and its a brand new petcock. gonna check the vacuum line which im almost positive thats the issue. just wanted to get peoples opinions if i forgot anything

Title: Re: brand new petcock issue
Post by drums1 on 06/26/10 at 07:45:51

I just went through petcock issues. I rebuilt the dam thing and did some carb work, all to no avail. I pulled and plugged the vacuum line and run it on prime. Runs great once warmed up. I do still have idle issues but I can deal with that. I have to turn the throttle stop screw about 1 1/2 turns in when cold. Once it warms all the way up, I put screw back where it was and ride for hours with no problems. I never used to have to do that so there's still a problem somewhere but it's not the petcock. Like I found out, once rebuilt doesn't mean it's working right.

Title: Re: brand new petcock issue
Post by justin_o_guy2 on 06/26/10 at 08:02:04

I am forever tweaking the idle . B4 its warmed up, it needs a higher setting, to get it off the choke after 3 or 4 minutes & it not be just too low RPM for the oil pressure. Once it warms up, I lower the idle back down so its not racing. Takes about 15 or 20 minutes of riding b4 its totally smoothed out. I dont mind it one bit, its just me & my engine, its not a carb problem, its just the way that engine works, IMO.

The petcock on the W is a vac iperated unit,. I opened it up, just to have a,ook. Kinda reminded me of the stuff in a weedeater/chainsaw carb, w/ little flaps cut & just waiting for a tiny piece of anything to get in there & mess things up. If I was working on one, Id sure want no lint or anything around, they look pretty persnickety.

Title: Re: brand new petcock issue
Post by ralfyguy on 06/26/10 at 13:48:10

I would like for you guys to try something: Let the bike idle and then pinch the vacuum line with your fingers and thumb and tell me if your idle goes UP a little holding it there, and when you let go of the hose if the idle goes back DOWN to what it was before.

Title: Re: brand new petcock issue
Post by ralfyguy on 06/26/10 at 13:50:34

Another question: To those who rebuilt their petcock, which kit is the one that fits correctly and where to get it and how much?

Title: Re: brand new petcock issue
Post by Routy on 06/26/10 at 14:30:16

537A68737969746C751B0 wrote:

If any valves were leaking slightly, it would lower compression slightly, causing a drop in HP, and a drop in vacuum, but could still run quite good,....or what you mite think is good. But that would be a last resort only if no other problem was found..

Title: Re: brand new petcock issue
Post by drums1 on 06/28/10 at 19:34:01

ralfyguy: I got the K+L fuel petcock repair kit at the local dealer.
Part # says FCK-5 GS1150 $23.00. It didn't fix my problem so I'm running it now on prime, with the vacuum line plugged and the vacuum port capped. If I had it to do again I would just get the Raptor and be done with it. Also about $23.00.