I started my bike up the other day and put the choke on and it started right up. but as soon as you touch the gas or take the choke off it kills. It will run at idle with the choke on for 15min and after letting it idle it still kills when you take the choke off or touch the gas.


ANY IDEAS GUYS??????????????? all the vaccum line are right and cleaned out.

 

check for pinched fuel lines, check fuel filter, clean out carbs better. are there any modifications done to the fuel system?

 

no mods done. all the lines are not pinched

 

sounds like a lack of fuel from what you have said. if it were me id take the carbs off again and completely clean them. bowl side and needle side. after that check the rest of the fuel system.

 

ok. just use carb and choke cleaner and clean everything good??

 

yes carb cleaner, any kind will work. search for the cleaning procedure on here, use the search function, its pretty much straight forward, just take your time. if thats what the problem is (from what you described it should be) it will run like new again once the carbs are cleaned properly.

 

Dirty pilot circuit is likely. A good thorough carb clean as cbrentb said is the first step. Also, make sure there are no leaks/cracks in the rubber boots that hold the carbs to the engine. Make sure those clamps are all tight.

 

the boots are brand new and new clamps. but i will clean the carbs and see what happens. lol thanks guys.