got a 50cc dont know the make,it keeps poping the chain,mostly when up hill or under a load.did the swingarm bushings ,ajusted tension,fixed motor mount.out of ideas,help

 

you tightened your chain and its still coming loose?

hmm, if your going up hills, your motor might not be powerful enough to push you up the hill properly.
or
your sprockets are not aligned properly with your chain.

hope it helps