TB 108cc Big Bore Kit, V1 Race Head, & 26mm Mikuni VM26 Carb/Kit – Honda 50cc & 70cc Various Models Clutch - Intake Kit ported to

- Intake Kit ported to match the stock KLX head

included is a piston with bigger reliefs to match the larger valves of the new race head

CRF50 XR50 CRF70 XR70 Z50

Instructions do not come with the kits but the installation of the crankshaft is just like installing a stock Honda crankshaft and both manuals cover this

Its notched into the billet side sections and then bolted on for increased strength (was previously a hollow section and welded on)

TB 108cc Big Bore Kit, V1 Race Head, & 26mm Mikuni VM26 Carb/Kit – Honda 50cc & 70cc Various Models Clutch - Intake Kit ported toTB 108cc Big Bore Kit, V1 Race Head, & 26mm Mikuni VM26 Carb Kit Honda 50cc & 70cc Various Models TB Parts 108cc V1 Race Head Kit, 52mm Bore Kit, & Mikuni VM26 Carb Kit. Converts the following stock engines to 108cc: 4 speed CT70H, SL70, and XL70. Also for 81 & up ATC70 and 3 speed 80 81 CT70 Starting with the V1 cylinder heads larger 25 22mm stainless steel (21 4N) valves, better porting, larger cam, improved valve geometry and superior quality this