120 hp (GM) Tune up specs.

[trppbp]

Help! I need the point setting and ignition timing for my Mercruiser 120 (GM)

 

[JB]

Re: 120 hp (GM) Tune up specs.

http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=17;t=009035 <br /><br />Moving to I/O

 

[horndog]

Re: 120 hp (GM) Tune up specs.

ignition timing: 8 degrees BTDC<br />point gap: .022<br />Spark plug gap: .035<br />Point dwell: 28-34 degrees<br />idle: 650-700<br />WOT RPM: 3900-4300<br /><br />Any other adjustments get a book, Seloc, or clymers it is definately worth the investment