Crankshaft Wossner Complete performance replacement crankshaft Includes crankshaft and connecting rod assembly Manufactured from premium materials for strength and durability Precision tolerances are maintained for smooth, trouble free operation • Mix gas/oil 32:1 – then make jetting right. The bottom rod bearing and engine in general needs more oil. • Always check crank seals – replace with every rebuild and pressure check bottom end to ensure crank seals are in good working condition. o Look for burrs in crankcases where seals go in. The seal should press in smoothly. Some newer case finishes are rough where the crank seal openings are machined. • Perform leakdown test on engine. Look specifically for intake leaks in reed / carb boot and crank seals. Some OEM reed cages aren’t properly sealing between the reed block and the cylinder side. • MX crank life is 40 hrs.. o Mod motors and heavier or really fast riders - 30 hrs. max. • Always clean everything before assembly. • Set side clearance to .026” (Wossner cranks are set at .024 - .028”) *Due to the nature of high performance applications, the included parts are sold without any expressed or implied warranty*