Thread: Problems w/ Yamaha OX66 250HP
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Old 08-14-2006, 07:22 PM
Old'sCool Old'sCool is offline
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Default Re: Problems w/ Yamaha OX66 250HP
The big block Yam OX66's run on 6 cyl. at idle and above ~1900 rpm. Everywhere else it drops two and runs on 4 cyl. I would suspect the throttle position sensor from what you have described.
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