Can anyone tell me how hard it it ro replace the piston, rings and cylinder in a Yamaha 350 Moto-4? The repair shop wants $700 and while that does not seem unreasonable, I bet most of that is labor. I have quite a bit experience working on cars, but have not yet torn apart a quad engine. Any help would be appreciated.

 

I would sugest getting a repair manual first, then go from there