just as the tittle states when its warmed up its vary hard to get started. but when its cold its alot esier to get going. what could cause this?

 

I had that trouble with mine. It turn out to be the CDI. But it could also be the coil or plug.

 

Mine also did that it was i thought it wasnt starting and i jsut wasnt kicking hard enough or it is your carb or filter mine had the stock filter in it when i got it and it was jsut and made it not start but i got a new one and she ran fine but try kicking it a little harder i race mine in the iowa atv harescramble series and it died on me and a guy that had wrecked cam over and asked me what happend and i said it wouldnt start he said he ahd one and he got on it and kicked it extremly hard and it fired right up so have your dad kick it or kick it as hard as you can and it should start thats ust my 2 sence broc bromley #128

 

well i dont thinking kicking it harder is the problem. im the hardest kicker around (im the only one who used to always be able to get it started) the frame sat out side during the winter (it started fine befor) when i was rebuilding the engine could that have messed up the cdi or coil(siting out side)? ill try a new plug if that dosnt help witch should i replace next?