snowhead

just rebuilt new motor 900 rmk new updated crank new 06 pistons finished install tried to start all it did was fire, tried again nothing tried in about 15 min. fired but no start checked spark no spark will only fire after 15 min. checked all connections checked stator all ok anybody have any ideas,

new to the 05 900rmk bought in dec 09 and had to replace stator assy one egsust valve so far . done for this season no snow left but will be ready next year.
great slead