i just bought a beartracker it fired up just fine when i bought it but i went mudding in the rain and now it wont fire it sounds like it wants to but it wont does anyone have any recmmondations and does anyone know the recommended compression its a 250cc

 

i just checked my vavle clearance and it was off so i fixed that and it fired and stayed runnin for a couple seconds and it wont fire again but it sounds like it want to but it still wont with ether can someone help me out here

 

I would start by checking/cleaning the carb/airbox. Sounds like a fuel issue to me...does it have spark at all times? Will it run if you use a starting fluid of some sort?
Mudslinger2

 

its got gas and a good spark and no it wont start with starter fluid thats whats messing me up cause it should and i tore a part the carb and everything looks good inside

 

check the keyway on the flywheel it could have shered and you are not getting spark at the right time look at the timing marks and the fireing marks

 

I have had intake manifolds on yamahas atv,s come apart.. I guess i would inspect intake manifold to see if its loose or has came apart..[it two pieces made into one]... Good Luck...