MarkMercury75
Recruit
- Joined
- Apr 25, 2009
- Messages
- 4
My '98 Merc 75 seems to be using only 3 of the 3 cyclinders. After winter storage there is spark at the wire but when you remove the wire while at idle there is no change in the rpm or operation. When you remove either of the other two you can see the idle smoothnes and rpm change. I tried a lot of fuel system cleaner.
The motor starts fine, seems very smooth, idles down to trolling speed.
Does one cyclinder shut down at idle? Could it be a fuel injector?
Also, still haven't gotten any reedback about my power trim stuck. Trim motor runs but doesn't lift or lower and I cannot raise manually aven after opening the presure relief valve. Can't trailer it to the shop with the motor in the down position and I really don't want to have to remove the engine.
The motor starts fine, seems very smooth, idles down to trolling speed.
Does one cyclinder shut down at idle? Could it be a fuel injector?
Also, still haven't gotten any reedback about my power trim stuck. Trim motor runs but doesn't lift or lower and I cannot raise manually aven after opening the presure relief valve. Can't trailer it to the shop with the motor in the down position and I really don't want to have to remove the engine.