I have a 1975 85HP merc outboard.
Finally got it running after it sat for a year by prev owner.
The batter voltage when off is around 13 volts or so. But when the engine is running it's around 11-12 volts, and sometimes jumps all over.. Is this normal?
Does the alternator only charge while moving forward?
Confused.
It also runs kind of rough. It had a half tank of gas in it, but it was prob a year old. I added a 1/4 of new and added octane booster to it. Should I just drain the tank and add all new? Or just top it up and use it?
Finally got it running after it sat for a year by prev owner.
The batter voltage when off is around 13 volts or so. But when the engine is running it's around 11-12 volts, and sometimes jumps all over.. Is this normal?
Does the alternator only charge while moving forward?
Confused.
It also runs kind of rough. It had a half tank of gas in it, but it was prob a year old. I added a 1/4 of new and added octane booster to it. Should I just drain the tank and add all new? Or just top it up and use it?