ross_larter
Petty Officer 2nd Class
- Joined
- Apr 6, 2003
- Messages
- 109
Hi All,
My mate has a PCM 5.7L 1990 - 94 ish direct drive inboard with a holley carb in his ski boat.
At idle it is very rough but once you get to 1800 rpm it smooths out and runs great, it still has low down power and can pull a skier ok. it idles at about 700 rpm and will all day but is very lumpy, if you run at 1600 rpm it runs very very lumpy but as soon as you hit 1800-2000 rpm it is fine, any ideas?
cheers
ross
My mate has a PCM 5.7L 1990 - 94 ish direct drive inboard with a holley carb in his ski boat.
At idle it is very rough but once you get to 1800 rpm it smooths out and runs great, it still has low down power and can pull a skier ok. it idles at about 700 rpm and will all day but is very lumpy, if you run at 1600 rpm it runs very very lumpy but as soon as you hit 1800-2000 rpm it is fine, any ideas?
cheers
ross