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Message started by thoner7 on 07/10/08 at 14:08:22

Title: Carb Tuning???
Post by thoner7 on 07/10/08 at 14:08:22

Ive got a problem. Was riding a few times, and after 5 miles or so the motor died when I let off the throttle. After dieing I was able to start her again after pulling the choke all the way out, and i could keep her running by keeping the RPMs high. I would let her sit for a while and she would start like normal. It happened again and now she wont start.

This only started after I changed the oil, and began hearing a slight tick in the motor, maybe just coincidence though.

I think it is one of the jets in the carb, but I need help identifying and fixing the problem.... every cycle shop is booked 2 weeks out!

Title: Re: Carb Tuning???
Post by serowbot on 07/10/08 at 14:32:31

First, check the petc*ck vac line. Any gas at all in it and you've got the classic petc*ck problem. (look it up!)(this is most likely)
If that's not it, remove the float bowl, from the carb, and pull your jets, make sure they aren't clogged. Check the floats and float level and the needle and seat.
If that ain't it you're going into the top of the carb to check the needle and slide.
If you're making black smoke, skip checking the jets, they're o.k.

Title: Re: Carb Tuning???
Post by thoner7 on 07/10/08 at 18:47:09

Update: I was able to start the bike like nothin was wrong once putting the petcock on prime, and i drove to the store and back, almost 5 miles, with it on prime. It ran fine, but I dont think I drove far enough to encounter the problem Ive been having. Once home I let the bike idle with the petock on ON for a min or two and it idled fine. Going to check the vac line now, hopefully the bike is cooled down.

Title: Re: Carb Tuning???
Post by Sandy Koocanusa on 07/10/08 at 19:02:24

Yep. Normal. On and Reserve only provide fuel when there is vacuum. Prime will flow freely all the time. Don't leave it on prime when you shut the thing off, or nasty things can happen.

Title: Re: Carb Tuning???
Post by thoner7 on 07/10/08 at 21:31:20

OK. I checked the vac line, it had a small, 1/4 inch stress crack in it where it meets the petcock. I replaced it with another rubber line and clamps. then I let it idle for about 2 mins on ON, and it slowly started to die and sputter off, so i flipped it into PRI, and the idle picked right back up, so I went back to ON for another min or so.....and so on and so on. I think I found the prob. (vac line) but Im not sure I fixed it with a new rubber hose?. I used a clear hose so I could see if it fills up with fuel, but nothing with jsut the idle, maybe with a ride perhaps?

What you think.

Title: Re: Carb Tuning???
Post by YonuhAdisi on 07/10/08 at 21:37:06

435F5859524500370 wrote:

OK. I check the vac line, it had a small, 1/4 inch stress crack in it where it meets the petcock. I replaced it with another rubber line and clamps. you think my problem is solved?

Only way to know for sure is to test it out, but that sounds like the problem I had at one time. I replaced the vac line, the old one had some cracks in it as you describe, and it fixed the problem.

Title: Re: Carb Tuning???
Post by thoner7 on 07/11/08 at 07:58:03

Been raining all morning so no riding today. I dont really tihnk the problem is solved. Anyone have the link to the common mod people have done when encountering this prob?

Thanks

Title: Re: Carb Tuning???
Post by verslagen1 on 07/11/08 at 08:46:43

You have the choice of replacing the petcock or converting it to manual. See tect section for that.