Carbs

[benxs1100]

double post.

[natemoen]

Well if you are spitting gas out when idling or low in the rpms it very well could be coming.g from the mains with the needle raised up. Can try putting it back to the center, most seem to always end up back in the center anyways.

[benxs1100]

Thanks Nate I will try that.

[benxs1100]

Moved the clips and still no change. What I can hear is what sounds like air being sucked in someplace it shouldnt. Boots and nipples are good but the clamps that hold the carbs on dont seem to tighten all that much. They go completley together without to much effort. I mean I can't just grab my carbs and pull them out of the boots but I dont remember ever seeing clamps that go all the way shut. I guess I will replace those next and cross my fingers.

[natemoen]

As a test you could wrap a few rounds of electrical tape around each boot end and then clamp it, the tape would act as an even space all around the boot to take up some of the space.

[benxs1100]

Good idea I'll give that a shot in the morning before I leave. Going on a long ride tomorrow. Didn't really want to with this stumble but I will just have to give hard throttle from takeoffs. Mostly highway anyways.

[crazy steve]

....but the clamps that hold the carbs on dont seem to tighten all that much. They go completley together without to much effort. I mean I can't just grab my carbs and pull them out of the boots but I dont remember ever seeing clamps that go all the way shut. I guess I will replace those next and cross my fingers.

Make sure you don't have the wrong clamps; the air cleaner clamps are a bit larger and won't clamp down all the way at the carb boots...

[SFerinTEXAS]

are you syncing those carbs?

[natemoen]

Make sure you don't have the wrong clamps; the air cleaner clamps are a bit larger and won't clamp down all the way at the carb boots...

Man, that didn't even cross my mind!

[benxs1100]

Well I was going to say that I was 100% sure they are not but that would be lie. I will check that as well. And yes the carbs are synced everytime I make any adjustments.

[benxs1100]

Ok so here is what I figured out.....I usually turn my idle up just a pinch to do the colortune. When set at 1100 I am getting no fuel through number 1 carb. I just pulled it apart and cleaned it again and this thing is spotless. I am getting good spark and pick-up coil wires are good just no fuel through at idle. Giving it throttle I start to get good color with the colortune but not even a flicker at idle. I cleaned every hole jet and piece of that carb and blew it out with the compressor nothing seems plugged unless I am missing something. I got the hole in the bowl to.

[TopCatGr58]

Hey Ben,

No or little vacuum on # 1 so it can't suck the fuel thru the Pilot circuit!
You say you've cleaned the carbs, so I'm sure that you don't have a Pilot screw tip broken/stuck in that carb!?

I didn't reread this thread, HOW did you clean the carb bodies...did you happen to soak them in cleaner...possibly damaging the butterfly shaft seals? You say you sprayed WD40 and carb cleaner around the intake boots, but did you try the butterfly shaft seal?!

If your boots were NOT cracked thru then vacuumn leaks spots are where they attach to the head...you said you used silicone/rtv there. You say the sync caps are good, but are they NEW and still soft pliable? Folks have round leaks around their caps because they had hardened with heat/age even though they were intact/not cracked!

Compression test?? Valve lash/clearance and cam timing correct? If too tight, could be not sealing well on intake stroke and getting poor vacuum? JAT!?
T.C.

[benxs1100]

Thanks for the reply TC.

I checked the pilot screw just in case but I am very gentle with them because of the horror stories.

I did not actually soak the carb bodies so hopefully no damage there but I will check tomorrow to be sure.

The caps on the carb boots are not nice soft rubber and I considered that as a problem but I pulled them off and plugged the hole with my finger but had no change in how it was running/idling.

I have not done a compression test or checked the timing yet as the bike was running great until I started messing with it over the winter (pods and green coils) I am going to give the carbs 1 more go through tommorrow and if it still is a problem I am going to have to start digging deeper as you suggest. Thanks again.

[XSive Okie]

I have a question. Not trying to derail anyone's thread, but didn't want to start a new one. How often should the carbs be synched?

[natemoen]

at least anytime you take the carbs off.