70 horse operating temp?

cat toon

Seaman
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Joined
Sep 20, 2010
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61
what would be the temp operating range of 70 horse Johnson?
 

Faztbullet

Supreme Mariner
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Mar 2, 2008
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15,938
Re: 70 horse operating temp?

143-155? at idle and about 125-130? at cruise and WOT...
 

Joe Reeves

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Feb 24, 2002
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13,262
Re: 70 horse operating temp?

The thermostat generally opens at around the 148 degree mark, so the engine is going to run slightly hotter than that. probably around 150/155.
 
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