jpd

my bike is a 2001 all top end parts weisco piston, clips, wrist pin, bearings came in a kit with cometic gaskets. also replaced all o-rings in cool head i do not have a compresson tester right now but i have a friend that has one and also a banshee that i can try swapping out cdi with if he will let me

my motor has just recieved a new top end 50 over with a cool head 18cc domes stock carbs 290 main throttle electronics disconnected K&N filters T5 pipes and silencers barnett clutch timing has been advanced flywheel lightened no porting yet and various cosmetics but will not run right does not even have a hour on motor. did a few heat cycles then it started this not wanting to fire on left side thing. took carb apart cleaned and cleaned again still no results could it be coil? pulled plug ang am getting spark and fuel what gives?

i dont know how too tell if the box is bad or not my bike is acting real weird it will start up fine but then it dies out a few seconds later or only one side will fire