The Yamato 302 is a racing outboard motor designed for the UIM outboard series OSY 400. Model 302 is a 24.2 cubic inch stock racing engine. Like its predecessors, this motor was developed specifically for use: in the multi-billion dollar pari-mutuel boat racing industry in Japan.
The motors are first raced in stadiums in Japan and then rebuilt and inspected in the factory before being delivered to APBA and UIM circuit racers. These motors are required to run heat after heat, day after day with perfect reliability at racing speeds.
Download the Yamato Service & Technical Manual in PDF
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