Tune up Manual in PDF format

[RGB5645]

Is there a tune up manual on line anyplace in a PDF format that would show how to adjust the idle speed on a 90 hp Force.
Maybe someone can explain to me just how to do it.

 

[kinggabbo]

Re: Tune up Manual in PDF format

What year Force? I may have the manual for it and can post a picture of the idle screw and tell you what RPMs to set it to.

 

[pnwboat]

Re: Tune up Manual in PDF format

You should get a manual that explains the whole process. It should be done in conjunction with a link and sync on the carbs. If mixture is set incorrectly, worse case scenario, you can melt a piston, or on the other hand it will run too rich which will foul plugs. If you're trouble-shooting some type of an idle problem, then you should start with a compression test and an ignition test.