Spark plug torque?

[Juan]

I can't find any information in my owner's manual or online about how many ft. lbs. the spark plugs in a Yamaha 4 stroke F150 should be torqued to.... and after recently having two loose plugs I'd like to do it by the book this time.. Anyone with a 150 h.p. or similar horsepower happen to know the torque specs for their spark plugs?

[freezerfiller]

18.4 ft lbs. should be page 56 in your manual.

[Juan]

Jun 7, 2017 16:10:08 GMT -6 freezerfiller said:

18.4 ft lbs. should be page 56 in your manual.

Thanks. I had found it and already have the new plugs installed. (I torqued to 20 ft lbs just to be safe.) and while I was at it, I replaced the ignition and trim tab switches.