4JT Yamaha TZ125 power up kit YEC SJK

New old stock YEC power up race kit from Yamaha. This suits the 1994-95 TZ125 and includes all new parts: exhaust chamber, carb manifold, cylinder head, jet kit, piston, parts list / manual.

We do also have another NOS kit exhaust available (same as photos) for £325 - it has been fitted for one dyno run and then removed.