its one big bolt on the belt tension spring it will just turn back if you use a wrench on it and give you enough slack to get old one out and put new ones in
engine its self depend on if your going for the sohc or dohc ...1200 usually cheapest for the cable cluctch and 2600 for the hydro clutch i forgot you might have to look it up...
ecu axles and links. and motor mounts