carbs cleaned and installed but bike don't want to run

[Master077]

I got my bike to run off choke, it will run perfect with petcock on prime. When I move the peacock to run that's when I start to have problems. The bike will ideal OK but when I add throttle and let off the throttle it will bog down run for 15 seconds then die. It sounds like it's not getting enough gas. Is there something I should adjust? I set the screws 3 x out? Should I pull the carbs a part

[chuck hahn]

Set them at 2 1/2 out with the petcock on PRIme and see how it reacts there..if "better but still not quite right"..then you go 1/8 in from there and search out the sweet spot. have the airbox or pods on it just as if you are going down the street and start tweeking.

I can tell you that at 3 out its almost 100% assured it way to rich already and any more out isnt gonna change chit.

[Master077]

I will try that. Do you have any idea why It doesn't want to run correct with the peacock on run?

[chuck hahn]

Youre petcock is junk or you dont have the vacuum line hooked up so it will work right. Your number 2 carb ( second from the left side ) has a brass nipple on it and thats the vacuum for the petcock. If its not hooked to the petcock and is wide open..then its a massive vacuum leak on that cylinder.

A vacuum line MUST be from that nipple to the small nipple on the petcock. There are 3 positions PRIme..which youve figured that out. Then there is ON..which will only work if the vacuum is hooked up. Then theres REServe..which work the same as the ON but only once the tank is low enough that it starts to sputter and you then switch to REServe. Yes the bike will run on REServe with a full tank also if the vacuum is hooked up.

When the bike isnt running you ALWAYS want it in the ON position to prevent fuel overflow that can contaminate the crankcase oil with raw gas..not a good situation .