zr_580_1994
Cadet
- Joined
- Sep 21, 2017
- Messages
- 8
I got a 1980 6 cyl mercury with a strange mis fire . Thing will idle perfect all day long but rev it up at all and it mis fires bad . This thing has me stumped . Everything tests good. If I disconnect the red wire off the power pack the mis fire is gone . I can do this to either power pack and it will run fine I never tried running it with both unhooked . Compression is good everything checks out . Looking for suggestions on where to go from here . And what does the red wire do ?