Re: Wiring diagram from pull to electric start on Mariner 20Hp 1985
in the manual for the engine, you would look at the schematic and note the connections and be able to move confidently i would think.
That said, what parts do you have for your "conversion" start button, starter, solenoid, cables, different stator, different flywheel.... etc... not sure if you have any or all of those parts, not sure that you will need them... my merc exp ends about 1978 or so, will the conversion allow you to charge your battery as well as just start from it?
More information please, what kit, where did ya get it, who made the kit, and such not. maybe a link to the site.
If this "kit" is factory then you would follow the manual on how to put it all together, if it is an aftermarket kit it would hopefully come with directions.
sean