hi all, i need some info. i have a 9.9 hatsu that runs great, but it pops out of forward, idle to full throttle. it doesnt pop out of reverse. i assume a gear is stripped or teeth r missing? in the lower unit? does anyone know how hard of a job that would be for me to repair myself? ie, is it easy or should i take it to someone? or am i not even close with my assumption?