Need some expert tuning advice...

Fuel weeping from under the cap may indicate a blocked fuel tank vent. That can cause it to run fine until a vacuum is created in the tank, starving the engine. After parking it for a bit, heat from the engine can cause pressure to build up in the tank, forcing vapor out under the cap.
Try loosening the cap and taking a gentle ride, you don't wantto slosh fuel all over you crotch! There is no substitute for spotless and properly adjusted carbs, but a clogged vent may be adding to your woes.

Thanks for the reply and the excellent diagrams. That is what is weird about this new problem I am having, beautiful idle with a nearly instantaneous bog when I put the engine under load, and only intermittent at that, almost like an electrical problem. Good advice too on the fuel filter, going to deploy one of those on the next iteration.

The good news is I am getting *really* fast at taking that carb bank off. One recent hack I discovered was taking my heat gun to those PITA boots between the airbox and carbs, soften them up a bit and they go on much easier

I agree with Texas. Check the vent in the cap. If it is seeping that suggests high pressure in the tank thus gas pushing past the float valves flooding the engine. You may have more than one thing going on here. One thing at a time, fix it, move on. Check the plugs. They are a good indicator of what's happening.
Steve

Patton wrote:

Skiprrdog wrote: No, I did not remove the mixture caps. Do you think I should do that?

Yes, if all of us remove the anti-tamper plugs, there's way too many for the black helicopter guys to keep up with.

Good Fortune!

They didn't allow or care for the fact a bike could sit unused for a long period of time. Gas turns to gunk quickly and clogs small passages. Their answer, BUY A NEW SET OF CARBS. Remove the anti tamper plugs so you can clean and adjust them.
As for the black choppers, I live between two Marine bases. I can tell when O Bummer has a push on by all the air traffic. I'm more concerned with the Chem trails almost every day.
Steve

Yeah, maybe a third cleaning will be the charm. This time I was thinking an ultrasonic cleaner, followed by carb cleaner/compressed air.

KZP's are *awesome*, I always had Harleys before this. The first time I got on it I cranked the throttle like I was on one of those 800# baggers, and the KZP went from zero to *holy sh#%* in the blink of an eye :woohoo:

TexasKZ wrote: Fuel weeping from under the cap may indicate a blocked fuel tank vent. That can cause it to run fine until a vacuum is created in the tank, starving the engine. After parking it for a bit, heat from the engine can cause pressure to build up in the tank, forcing vapor out under the cap.
Try loosening the cap and taking a gentle ride, you don't wantto slosh fuel all over you crotch! There is no substitute for spotless and properly adjusted carbs, but a clogged vent may be adding to your woes.

I agree with all that, but I am not sure if that is the problem; I took the cap apart yesterday and I am not seeing a problem there, not sure about inside the tank :side:

swest wrote:

Patton wrote:

Skiprrdog wrote: No, I did not remove the mixture caps. Do you think I should do that?

Yes, if all of us remove the anti-tamper plugs, there's way too many for the black helicopter guys to keep up with.

Good Fortune!

They didn't allow or care for the fact a bike could sit unused for a long period of time. Gas turns to gunk quickly and clogs small passages. Their answer, BUY A NEW SET OF CARBS. Remove the anti tamper plugs so you can clean and adjust them.
As for the black choppers, I live between two Marine bases. I can tell when O Bummer has a push on by all the air traffic. I'm more concerned with the Chem trails almost every day.
Steve

O' Blah Blah... I wish a helicopter would fall on his head, beyond tired of that poseur :sick:

Think I might have dodged a bullet here. I happened to look at the oil sight glass last night, and thought, that cant be good. So I changed the oil and filter, again, and it looks like my original 3.9 quarts grew in volume...

If not already done, would assure that the two carb vent hoses are serviceable and that both of them exit to open air.
The vents are needed to allow supply of incoming fuel into the float bowls.

This illustration may not be identical to carbs at hand --




Also assure the plugs at bottoms of pilot jets are present and in decent condition.



The plugs are needed to assure that gasoline reaches the pilot jet (and pilot jet circuit) only by going through the small passageway from above the main jet.
If the plug (or it's o'ring, if so fitted) is missing or damaged, gasoline from the float bowl may directly enter the pilot jet, which is not good, as the only gasoline that reaches the pilot jet is supposed to be coming through the small passageway.

Good Fortune!

Skiprrdog wrote:

swest wrote:

Patton wrote:

Skiprrdog wrote: No, I did not remove the mixture caps. Do you think I should do that?

Yes, if all of us remove the anti-tamper plugs, there's way too many for the black helicopter guys to keep up with.

Good Fortune!

They didn't allow or care for the fact a bike could sit unused for a long period of time. Gas turns to gunk quickly and clogs small passages. Their answer, BUY A NEW SET OF CARBS. Remove the anti tamper plugs so you can clean and adjust them.
As for the black choppers, I live between two Marine bases. I can tell when O Bummer has a push on by all the air traffic. I'm more concerned with the Chem trails almost every day.
Steve

O' Blah Blah... I wish a helicopter would fall on his head, beyond tired of that poseur :sick:

Back atcha.

Well, the good news is I seem to have solved the carb issues. I think that the fourth removal and cleaning must have done the trick, that and spending another half a day and getting the fuel levels very closely dialed in to each other. As a last step I synchronized the carbs. When I was all done, all I can say is *wow* what a difference from where I started! I almost do not need the enrichener to start the bike, I can push it all the way in in less than a minute, and the idle is so smooth, you would think there is only one carb!

Thanks again for the help and suggestions from everyone, I could not have done it by myself. I learned a lot, and I will never fear a multiple carb bank again :laugh:

Good for you. Now get out and ride the piss out of it. :woohoo:
Steve