XR70 CRF70 ENGINE TB Stroker Kit 2 TBW0967

***NEW**Stroker Kit 2

1/06/07 The kit now includes the proven Mikuni VM26 carburetor which will provide better performance and ease of tuning. This kit is the same as the Stroker Kit 1 but also includes a VM26 carburetor for better performance. Its an affordable kit that will convert your TB 88cc Race Head kit into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines).  Also, this crank was made specifically for the newer engines and thus, you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston not lining up with the cylinder deck. The kit includes the following parts:

– 51mm Crankshaft with NTN bearings
– NEW Genuine Mikuni VM26mm Performance Carb
– Intake Kit
– Jet kit with 3 different sizes (Stock size is a #195 – Extra jets sizes of
155, 165 & 175)
– Throttle Cable
– NEW Dual Layered Foam Air Filter
– Crankcase and clutch cover gaskets
– Head gasket kit

This kit requires engine disassembly and therefore, we highly recommend a professional technician install this kit. If you plan on doing it yourself, you will need to have a Clymer or Honda shop manual.
Instructions do not come with the kits but the installation of the crankshaft is just like installing a stock Honda crankshaft. You should also have the following parts:

– High volume oil pump
– Oil Cooler
– CR8HSA spark plug (not required, but recommended)
– If you purchased one of our Manual Clutch Kits prior to 6/30/05, will recommend purchasing the Upgrade Disk Kit that we have available.

Additionally, we do not recommend the use of an inner rotor kit with this clutch (on a 108cc or larger engine) as it can lead to premature clutch failure due to extra fatigue placed on the clutch housing. However, we offer an upgrade which allows use of inner rotor kits and larger displacement engines – Please see the Billet Housing upgrade we have available for more details. Also, do not tighten the clutch nut with a hammer and screw driver – it must be torqued on!

See the Performance Info section for additional information on our performance products and links to instructions for the top end and oil pump.