Thanks. I have done exactly what you said earlier. However I know I didn’t get all the water out. I could get the last little bit through the fuel sending unit. I am hoping that my problem now is just that last little bit of water. Time will tell as I was only able to test once since I drained...
This is something I came across on my 90. The starter gear was stripped. It sounded like it was cranking. But it really wasn’t. I put a piece of tape on the flywheel to clearly see how fast it spins. For me it a pinned a bit, then stopped, then spinner again. Never can start like that.
So have been dealing with a problem for awhile and I’m trying to get down to the root cause. Maybe I am missing something so that is why I’m asking here. Every weekend when I go and try and start it won’t. I have narrowed it down to fuel. And water in fuel. To start it I hook a portable tank. It...
I have the same motor. I have had that bogging issue like you described. My problem was with the primer bulb. Seemed like maybe the check valve was weak. My carb and pump were rebuilt too. When the motor bogs pump the primer bulb. If it picks up power then that should be it.
The vacuum pulling in small amounts of water makes more sense. I leave the boat in the water all year, so that heat must be from operation.
Is the repair as simple as pulling off the LU and prop and sliding in new seals?
I would like your opinion on something. This is an early 80's Mercury 90 inline 6 cylinder. Ever since i have owned this boat (15 years) I have always seen very small amounts of water in the lower unit gear oil. When I say small, I would say less than 1oz of water. I know this because I used to...
A new battery got spark back in two cylinder. The third cylinder needed a new coil. Why it didn't start... well my battery died. Water slightly flooded over the fuel tank and I guess water got into the fuel. New fuel got it going. Thanks for the help!
I know this thread went off topic with all my problems! I appreciate the help. To make my problems worse I dropped my motor cover cowl in the lake when troubleshooting. Yeah... I know. I want to try and grab it with a magnet, but is that thing aluminum? There is no rust on it at all.
I never thought about that regarding the fuel pump. But it has been rebuilt a couple of years ago. I do feel it could be battery related. I went down this path before with no spark and only a fully charged good battery would resolve the spark issue. It was just recently that I found the...
I mentioned that my battery would always drain. Well earlier in the year I found that my battery was not charging. So I got a new rectifier to solve the problem. But after that my battery was overcharging when I would drive. it would keep climbing to 18 volts. I read that this could be caused by...
When I say flood I mean I see fuel come out of the exhaust. This is (I think) because I am cranking for a long time and using the enricher a lot. I have learned my lesson over the years and I use the enricher less.
I do find it weird because I would have noticed if it ran on 3 cylinders for...
Thanks Chris. So maybe you can help with my no spark issue. Let me give you some background. So this motor always gives me starting trouble, after it sits for a couple weeks. I sort of nailed it down to a weak battery. If it doesn't start (it floods the motor) I either charge the battery over...
I have an early 80's Mercury 90 Inline 6 cylinder, tower of power. I am troubleshooting a starting problem which seems to be no spark on 3 cylinders. It's hard for me to turn over the motor with the key and look for spark. Is there a way to jump some wire at the motor so that I can turn over the...
I have tried everything and looking for some fresh ideas. I have a 81' Mercury 90 6 cylinder, it has 2 trim/tilt cylinders and the pump w/ valve is inside the boat. 4 hoses. So the problem is that the motor will drop. When testing somethings it will fully drop in a couple days and somethings it...
