Stage 5 engine:
- 22mm Mikuni carburetor
- 125 main jet
- 12.5 pilot jet
- UNI filter
- breather filter
- ported/milled small chamber cylinder head (choice of 14cc or 18cc)
- 26lb valve springs
- stainless steel valves (stock size)
- lash caps
- retainer/keeper set
- chrome moly pushrods
- billet 1.3 ratio rockers
- flat top piston
- 275 camshaft
- billet long rod (.020")
- aluminum flywheel
- bolt/stud kit