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Spark plug torque?the best.

Beagleman

Regular Contributor
Good day folks. You guys are so awesome that I decided to hit you up for advice again. I got a 40 hp mariner (40 E 6E9 s 104752), 1985 2 cylinder outboard. Basically a copy of those old Yamaha fm series.

Its time for a spark plug change, and the manual says nothing about how much to torque the spark plugs. SO, does anyone know how much to torque them?

All the best.

RObby
 
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