I've got a pontoon boat parked in my yard with a 90hp Merc. on the back. Maybe saltwater series, not sure right now.
It belongs to Baitfish1, and we take it out into the river from time to time with some friends fishing.
I usually run it, since I'm the only one I trust.
Its got a remote throttle and trim/tilt, safte steering. The only gauge or indicator is a tach.
Oil injected, uses the built in tank that fills from the top. Carbed, not FI.
I have been getting more and more nervous about this motor. I never hear any alarms when I turn it on.
The wiring on the boat is a nightmare. I have been working on it slowly, but the engine harness is separate and seems OK.
I don't have a lot of experience with the more advanced motors. I could keep my old 6hp Johnson, and other motors going, but I take my 250s and other big motors to a shop.
We are headed out on a 3 day expedition come August, and I would like to check to see if the overheat and oil alarms are working or what it will take to fix them.
I figure I can pull the wires off the oil tank and see if the low alarm will sound, but I don't know about the oil pump alarm.
I also don't know if its an overheat switch, a temp sender for a gauge, or both.
I'm in the office, but I'm headed to the farm in a little while. I can take pictures, get serial numbers, model numbers, whatever you need.
Probably everything is there, and may be working. I mainly just need some ideas of what to look for.
If there is something wrong besides a wire off or bypassed, I'll probably just take it to a shop.
Not too urgent, I'm going to be looking at it in my spare time. I think its headed back to its home next week for a week or so anyway so I won't be able to work on it until it gets back.
He wants to take his family out on it I think.
It belongs to Baitfish1, and we take it out into the river from time to time with some friends fishing.
I usually run it, since I'm the only one I trust.
Its got a remote throttle and trim/tilt, safte steering. The only gauge or indicator is a tach.
Oil injected, uses the built in tank that fills from the top. Carbed, not FI.
I have been getting more and more nervous about this motor. I never hear any alarms when I turn it on.
The wiring on the boat is a nightmare. I have been working on it slowly, but the engine harness is separate and seems OK.
I don't have a lot of experience with the more advanced motors. I could keep my old 6hp Johnson, and other motors going, but I take my 250s and other big motors to a shop.
We are headed out on a 3 day expedition come August, and I would like to check to see if the overheat and oil alarms are working or what it will take to fix them.
I figure I can pull the wires off the oil tank and see if the low alarm will sound, but I don't know about the oil pump alarm.
I also don't know if its an overheat switch, a temp sender for a gauge, or both.
I'm in the office, but I'm headed to the farm in a little while. I can take pictures, get serial numbers, model numbers, whatever you need.
Probably everything is there, and may be working. I mainly just need some ideas of what to look for.
If there is something wrong besides a wire off or bypassed, I'll probably just take it to a shop.
Not too urgent, I'm going to be looking at it in my spare time. I think its headed back to its home next week for a week or so anyway so I won't be able to work on it until it gets back.
He wants to take his family out on it I think.
Last edited:
ask me how I know...

