bump box not turning engine.
hey all, i'm trying to start an older serpent on-road car w/my new but used bump starter. i have a brand new, freshly charged 12v (8amp) battery in the starter, and the motor seems strong(i "can't" stop it from spinning w/my hand while it's running). the rubber starter wheel just rubs the flywheel, not turning it. i can turn the flywheel by hand fairly easy.
do i need to have the flywheel set further back on the rubber starter wheel? any suggestions?
slash 4x4/ serpent impact/ rs4-2/ thunder tiger ek4/ ofna LX