Just replaced the clutch dog and put it back together the right way. Held toghether great for appr. 3 hr's of run time .Put back in the water today and it started slowly backing itself out of gear . When you first put it gear it lock's right up like it's supposed to.Will stay in at low throttle but as I gave it gas it back's out. Will stay in at any rpm with slight pressure , no noise or anything just smooth cruisin... Not locking up with forward gear ???