Tips

4183 Piston Note

For 4183 Stroker Crank

If using any aftermarket piston with this crank, the skirt webbing on the bottom of piston will likely need to be relieved for clearance for piston jet.

Download a PDF with more photos and information here.

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Hot Rods Key Installation

View diagram for correctly installed key

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4105 Machining Instructions

Yamaha Blaster +4mm Stroker Crank Instruction Sheet

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CR124 Thrust Washer Note

Thrust washer instructions for CR 124

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4182 Special Instructions

For KX450F Stroker Crank

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HR-034 K046 Seal Notice

Please read before installation of this kit.

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4183 Piston Note

For 4183 Stroker Crank

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4091 Oil Pump priming instructions

4091 Oil Pump priming instructions

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YZ 250 (1999-2016) Service Bulletin

Cylinder installation on YZ 250 (1999-2016)

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