PSRU Adapter for Yamaha 150hp 4 Cyl

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Quick Overview

This is the exclusive Mohawk Aero Corp water-jet fabricated kit that allows a PSRU (gearbox redrive) to be bolted up to a Yamaha Genesis 4 1000cc 150hp engine, for the do-it-yourself conversion. This two-piece adapter kit is essential, and includes the billet-cut 6061-T6 spacer which is bolt-on ready for installation over the crankcase cover (you do not remove the engine case cover, just remove the bolts), the 1/2" plate custom-cut redrive attachment plate which the redrive bolts to, and in turn bolts to the spacer, and all of the extended-length bolts that replace the stock screws in the crankcase cover.

Redrive Adapter I

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  • Redrive Adapter I
  • Redrive Adapter II
  • Redrive Adapter III


Adapter unit (patent pending) that allows a PSRU/ gearbox redrive to be simply bolted up to a Yamaha Genesis 4 1000cc engine for the do-it-yourself conversion. Billet cut from 6061-T6 aluminum, and 1/2" plate, the two-piece adapter is essential.

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