jbwillis76
Seaman Apprentice
- Joined
- Feb 20, 2009
- Messages
- 36
Hello again all,
I finally got my 1986 85Hp Force going and to the lake. I just rebuilt the carbs, new fuel pump (valves as well), fuel lines, bulb, impeller, new plugs, link/sync, timing checked out and 135# on all three cylinders.
It turned out I was running on 1 good cylinder, one dead and one intermittantly (weak). Replaced CDI and Coils until I have good spark on all three now.
Anyway, took her to the lake (16' VIP fish/ski. pretty small boat) with 13/19 stainless prop. Over all I'm tickled with the way she performed considering all the work I've done to her the last couple months. Cold starts instantly, idles perfect, and runs to WOT with no missing. The only problem is WOT, according to the factory tach, is around 4000-4200 RPM. Now at WOT she purrs and sounds great and seems to be really scooting across the lake. I will GPS next time out but according to the factory speedo (I know not accurate) she's doing 42-43 MPH with me my wife and kid in the boat. If I didn't have a tach and know it should be turning around 5000+ I would think it's perfcet and not bother with anything else, but I know it should be turning more RPMs.
It planes out ok, but seems it should plane just a little faster. It has a Sport SE 300 foil (I know). Once on plane it revs to WOT pretty quickly. Trimming up while WOT doesn't change much, maybe 100 RPM and 1 MPH.
The plugs were put in brand new just before this trip to the lake and I pulled them once home and all look the same with pretty heavy carbon on them. I haven't decarbed but do have a can of Seafoam in the gas.
Any suggestions or should I just live with it.
Thanks for the help, James
I finally got my 1986 85Hp Force going and to the lake. I just rebuilt the carbs, new fuel pump (valves as well), fuel lines, bulb, impeller, new plugs, link/sync, timing checked out and 135# on all three cylinders.
It turned out I was running on 1 good cylinder, one dead and one intermittantly (weak). Replaced CDI and Coils until I have good spark on all three now.
Anyway, took her to the lake (16' VIP fish/ski. pretty small boat) with 13/19 stainless prop. Over all I'm tickled with the way she performed considering all the work I've done to her the last couple months. Cold starts instantly, idles perfect, and runs to WOT with no missing. The only problem is WOT, according to the factory tach, is around 4000-4200 RPM. Now at WOT she purrs and sounds great and seems to be really scooting across the lake. I will GPS next time out but according to the factory speedo (I know not accurate) she's doing 42-43 MPH with me my wife and kid in the boat. If I didn't have a tach and know it should be turning around 5000+ I would think it's perfcet and not bother with anything else, but I know it should be turning more RPMs.
It planes out ok, but seems it should plane just a little faster. It has a Sport SE 300 foil (I know). Once on plane it revs to WOT pretty quickly. Trimming up while WOT doesn't change much, maybe 100 RPM and 1 MPH.
The plugs were put in brand new just before this trip to the lake and I pulled them once home and all look the same with pretty heavy carbon on them. I haven't decarbed but do have a can of Seafoam in the gas.
Any suggestions or should I just live with it.
Thanks for the help, James