У вашего броузера проблема в совместимости с HTML5
Remove factory motor/tranny combo.
Use a Right Angle grinder with thin cutting wheel to cut the factory welds of factory brackets, down the middle, and smack the brackets off with little force.
Cut Factory transmission in the middle from factory motor
Remount factory transmission
Remove first front lower chassis crossmember, relocate/weld according to the length of your briggs standard motor plate.
Mount 4stroke motor to plate with comet style clutch and belt installed with the factory Eton clutch and transmission with gear cover.
Factory atv throttle linkage modded, use one of the brackets removed from chassis to weld to engine cover or existing engine bracket.
The engine used in this build is a Tecumseh Power Sport 6hp go kart engine.