Hello eveyone.  I'm working on a problem today with my Lifan LF50QGY with the 49cc horizontal engine.  I believe the cam chain tensioner is locking the motor.  When I pull the cam gear and tug on the chain I can spin the motor freely.  I'm stuck on removing the flywheel to inspect the cam tensioner mechanism.  I spun the center bolt off but can't remove that @#$%^%% flywheel.   Youtube videos always show that coming off easily.  Anyone know a technique other than brute for prying?  What about those allen head bolts that surround the center nut and the main shaft.  Do they need to come off?