Suzuki LT-Z400 Quadsport No Start

[Ayyitsjinx]

Hi guys I have an 06 Z400 all stick except yoshimura Exhaust. It ran great ride just about every other weekend and during the winter I let it sit for about 4 months without starting. When I tried starting it all it does is crank. Took the carb off and cleaned it but it still won’t start. I was able to roll it off and it had 100% power while rolling but if I stopped or engaged the clutch it would die.

I was think of just buying a new carb( Incase I messed mine up ) but I don’t want to just throw parts at it. Any help would be appreciated!

[Smokey450r]

Possible bent valve and low compression not enough to crank over, fixed one about 6 months ago boy could ride it and roll start it. But it did about the same thing so I took the head off valve bent changed both to be safe. He still rides it and starts easy now but your still could be a carb problem but figured I’d throw this at you.