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Message started by saluteTOme on 02/08/09 at 16:01:28

Title: Possible problem. Maybe fixed
Post by saluteTOme on 02/08/09 at 16:01:28

I bet you love the topic :D

anyway...being it was 63 degrees here today! I took advantage of it and went for a nice long ride. I kept running into a problem. I would be driving along in 5th, hit the gas and pull on the clutch. After I would do that, the bike would drop revs and shut off. It happened to me like 3 times. on the 3rd time I pulled over and messed with the air/fuel mix screw. I turned it more rich. I tried to create the problem again and I couldn't. So I think I fixed the problem...maybe? Would having a too lean mix cause the bike to shut off after a fast rev to no load from disengaging the clutch? I dont know too much about tuning the bike so since I re-jetted and got a dyna muffler, I brought a small screw driver with me. (thankfully) I hope this is the case.

Btw, I did have the screw all the way in (not today)and i've been backing it out slowly to try to tune it as I have the bike running more and more.

Also....AWESOME FRIGGING DAY TO RIDE!

Title: Re: Possible problem. Maybe fixed
Post by justin_o_guy2 on 02/08/09 at 16:18:19

Might need to raise the idle a tad

Title: Re: Possible problem. Maybe fixed
Post by saluteTOme on 02/08/09 at 16:26:03

I thought that too but I already had raised it and I ended up lowering it after I enriched the mix.

Title: Re: Possible problem. Maybe fixed
Post by saluteTOme on 02/10/09 at 07:27:42

any other thoughts?

Title: Re: Possible problem. Maybe fixed
Post by diamond jim on 02/10/09 at 07:34:43

Anything been done with the white spacer? I'm still thinking either idle too low or running too rich if the white spacer has been removed.

Title: Re: Possible problem. Maybe fixed
Post by saluteTOme on 02/10/09 at 17:06:04

nope. white spacer is still in as far as I know. When I bought the bike, the mix screw was out. I re-jetted myself but didn't do the white spacer mod.

Title: Re: Possible problem. Maybe fixed
Post by Digger on 02/10/09 at 21:44:55

It might be worth checking out the petcock for proper operation.

Title: Re: Possible problem. Maybe fixed
Post by verslagen1 on 02/10/09 at 23:58:55

The rpms tend to overshoot idle and will dip down a 100 or 2 rpms.

If you have it set at 1000rpm idle and do as you say, it could easily drop to 8 or 900 and quit on you.

I think it does it cause it's a fairly large carb and at low rpms the air flow isn't constant enough to keep a good air/fuel ratio.

Title: Re: Possible problem. Maybe fixed
Post by saluteTOme on 02/11/09 at 06:01:17

775A54545641330 wrote:

It might be worth checking out the petcock for proper operation.

how would I do that with on?

Quote:

So maybe raise the idle a little bit more?

Title: Re: Possible problem. Maybe fixed
Post by justin_o_guy2 on 02/11/09 at 08:34:07

You could always blip the throttle a few times or hold it slightly open, to keep it alive at higher speeds.
Seems mine was pretty sensitive to droping to idle from high speeds till I jacked the idle up. I know it would die if I I was running 80 & just let off the throttle & pulled in the clutch.Not so bad about it now, OR, I just developed habits that keep it from happening.

Title: Re: Possible problem. Maybe fixed
Post by Zylar on 02/11/09 at 09:01:28

Yeah, I've seen this on both mine ('01) and my moms ('98). When tuned perfectly and fully warmed up, runs great. While warming up or cold outside, tends to die at idle. I now have both idling just a tad high (by ear, no tach) when fully warm and they don't die at all.

Any possible harm from running ~100rpm (1/16 to 1/8 turn on thumbscrew) higher idle?

Title: Re: Possible problem. Maybe fixed
Post by Digger on 02/11/09 at 19:54:41

495B564F4E5F6E75575F3A0 wrote:

[quote author=775A54545641330 link=1234137688/0#6 date=1234331095]It might be worth checking out the petcock for proper operation.

how would I do that with on?[/quote]

Salute,

If nothing else works to fix your problem, you can try this:

Clamp the petcock vacuum line shut. Set petcock to PRI. If the bike runs better this way, I would suspect a problem with the vacuum line or the petcock diaphragm.

Good luck!

Title: Re: Possible problem. Maybe fixed
Post by saluteTOme on 02/11/09 at 21:15:46

I shall do. I kinda doubt it's that, but you never know. I am going to give a higher idle a shot. It's also the 1st time I really ran the bike "hard" since oct/nov. I also need to do an oil change soon. Just need to get around to that.