1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 13Get this manual

1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 13

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PROPELLER AND PROPELLER SELECTION The performance of propeller has direct effect on that of both the boat and outboard motorIt is safe to say that the propeller greatly affects tha boat speed, acceler