yfz problem...

[400ex=awesome]

i just finished rebuilding my 2008 yfz450. i put new hotrod cranks in and wiseco high compression piston because i seized the motor. i put it all back together correctly, not 1 missing part and i went to start it and it is turning over but it doesn't sound like its grabbing or wanting to start. its getting a spark and its getting fuel but i just dont get what the problem could be. all the wires are connected right and it looks fine. any idea's??

[450rJam]

check timing and valve clearance, not sure how the decomp. works on the yfz but if its adjustable you can check that also

if you have compression, gas and fire at the right time it should run