Heres a general way of dissassembling the engine-
- Remove back plate/pullstart mechanism
- Remove cooling head assembly
- Remove piston sleeve (you may need to use a cable tie thru the exhaust port to help get it out)
- Once sleeve is removed, take piston off crank pin (you can do this thru the back plate area)
- Remove piston
- Remove clutch assembly, engine collet etc
- Remove crank