idle question, 89, Jardine exhuast, jet kit

[knowles]

When i have the choke on and the bike on the side stand it will idle and then start to pick up speed as it gets warmer, but when i get on the bike and stand it up and take it off the kick stand the idle goes down. the idle doesnt change when i turn the bars its just when i tip the bike up. also when the bike is warmed up it doesnt do it? it this normal, or does anyone know what could cause this? I did replace the shims only one was in spec. going to recheck when i do the oil change on next tuesday

[jestercinti]

Float height OK?  Is your throttle cable binding on something when you move/lean the bike the speed changes?

[knowles]

im thinking its that carbs because it doesnt change if you just turn the bars, and being that it only does it when its cold.

[BockinBboy]

Do you have it on prime when starting it like this?
I noticed what might also be the same thing... except my bike is almost completely stock and no mechanical mods/low miles.  I would start it up on prime, choke on, side stand.  Let it warm up with idle going up while I put my gear on (takes a couple mins).  Then I would get on the bike and take it off side stand and stand it up, and idle would drop a good 1k or better before I lowered the choke.  So I hopped off and put it back on sidestand and idle went back up.  After looking a little closer I realized that prime was still on.  I put the valve back on main, waited a second, and tried it again.  Didn't happen this time.  I took the lowered idle as it was getting a little bogged down filling with a bit more gas than it was just on the side stand (could be completely wrong on this though lol).  This has happened to me at least twice that I can remember, but both times went away without prime on.  But maybe it just went away after switching off prime cause it was warmed up anyway, like you experience?

- Bboy

[speedfreek]

check the diaphram in the fuel chicken and the tank petcock.  I replaced my lines with
tygon lines and could see when fuel was flowing.  I had some blockage in the
tank petcock and a weak diaphram and when the bike was leaned over the fuel
level was low enough to make it into the non-reserve line.  standing up, it was
too shallow a level and would only work on reserve -- which was partially clogged.
since I had a bad diaphram, the only way I could get fuel into the carbs was when
the fuel chicken was on PRI - leaned over.

After replacing all of this stuff, haven't had the problem since..

Put more gas in the tank and see if the problem goes away -- that's the easiest
way to check if you're having a similar problem.

TJ

[speedfreek]

fuel chicken - that's some funny caca right there..

TJ

[knowles]

tank is full, tank petcock is new OEM. i have clear lines so i can see it getting fuel, like i said it goes away after bike is warm, just going to take carbs apart, its seems to be running a little bit lean also, so going to add a washer to the needles.