bgrimes422
Cadet
- Joined
- Sep 10, 2013
- Messages
- 12
Been reading a long time but first time asking.
I have been working for 2 weeks on this motor and about to pull both hairs out. J200TXERK 105 psi on all but #5, 100 psi on it. Good spark with spark check on all. Have been through carbs 3 times and just installed a set of 225 hp carbs just in case I still missed something. Have changed out the timer base no effect with an old one I had. New Coils - no effect. New plugs - no effect. At Idle, I pull plug wires off and all but #3 respond. When I go and run it it turns 5800 rpm wot except sometimes when #3 kicks in and then it bumps against the rpm limiter (I have ordered a new prop). When #3 does kick in it only last a couple hundred yards at the most and the drops back. I have checked all electrical connections, checked for vacuum leaks in the block. I have ordered a new power pack but I am guessing that isn't the problem because I have good spark on #3. The plugs look about the same except #3 looks more washed but if it isn't firing correctly it would. The only thing I can think of that I could still be missing is a water leak into #3 cylinder and I have ordered new head gaskets to check that, but it isn't loosing any compression. Can anyone think of anything else I might be missing? I consider myself a pretty good outboard mechanic but this motor is driving me crazy.
I have been working for 2 weeks on this motor and about to pull both hairs out. J200TXERK 105 psi on all but #5, 100 psi on it. Good spark with spark check on all. Have been through carbs 3 times and just installed a set of 225 hp carbs just in case I still missed something. Have changed out the timer base no effect with an old one I had. New Coils - no effect. New plugs - no effect. At Idle, I pull plug wires off and all but #3 respond. When I go and run it it turns 5800 rpm wot except sometimes when #3 kicks in and then it bumps against the rpm limiter (I have ordered a new prop). When #3 does kick in it only last a couple hundred yards at the most and the drops back. I have checked all electrical connections, checked for vacuum leaks in the block. I have ordered a new power pack but I am guessing that isn't the problem because I have good spark on #3. The plugs look about the same except #3 looks more washed but if it isn't firing correctly it would. The only thing I can think of that I could still be missing is a water leak into #3 cylinder and I have ordered new head gaskets to check that, but it isn't loosing any compression. Can anyone think of anything else I might be missing? I consider myself a pretty good outboard mechanic but this motor is driving me crazy.