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Wot for 1974 johnson 70 hp

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chadbritch

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can anyone tell me the max. s

can anyone tell me the max. safe rpm to run this motor.I have it mounted on a 1979 16foot thundercraft speed boat.Also I would like to know if anyone knows the pitch of this prop Michigan PR 286.these are the only numbers that I can find on the prop.
 
"Chad.... That engine hits its

"Chad.... That engine hits its horsepower at 5000 rpm. Top end, full throttle is considered 4500 to 5500 rpm, not to exceed 5500 rpm.

Joe
"
 
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