Hi John
85 XS 85 hp at the crank if you where lucky , only real diffrence from a std 85 was the water pick ups on the lower part of the gear box bullet , 2.3:1 gear ratio , we had to rebuild the gear box every race . Same lower unit apart from the ratio , as the 150 XS , because the class had to a std engine we could not alter the ratio.
Eric
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