1970 60hp evinrude info

[johnson1]

Hi there i have a 1970 60hp evinrude i am just wondering what spark plug is used in this engine and plug gap also i have be told when i got this motor that one of the cylinders cuts in and out just wondering what might cause that thank you

 

[racerone]

Pull the flywheel and set the points to 0.010"--------------clean the distributor cap and rotor.--------------------Replace the wee boots where the plug wires screw into the distributor cap.

 

[johnson1]

Here are some pics of the engine. This may make it a little easier for someone on the forum here to help me find the proper spark plug selection plus gapping spec for the plug itself....

 

[racerone]

I had one of those motors one time -----------Ran with L77J4C gapped at 0.035"---------------Went like a 70 HP motor.

 

[johnson1]

ok... i found L77JC4 and QL77JC4.... which one?