Hi everyone,
For background, I picked up a 14' aluminum runabout with a hardly used 40hp 4cyl mercury (no serial number plate to be found, but I've figured out it's a 1989-1991). The boat had supposedly worked when parked, which was around 15 years ago and since then was sold with a property to the guy who sold it to me. I've redone all of the wood in the boat, and seats, and managed to get the motor running on the top 2 cylinders (no fuel to the bottom two), then I cleaned a ton of gunk out of the bottom carb and after putting it back together, with fuel to all 4 cylinders, I couldn't get it started and found it had no spark. While checking spark with one plug out it started once and ran on the 3 cylinders with plugs in very nicely, and I shut it down quickly since one plug was out. Since then, it's had absolutely zero spark, and the few times I had it running before cleaning the carbs it seemed to sometimes have no spark and wouldn't run.
Anyways, I've had zero spark since, and ran through diagnostics and narrowed it down to the stator. I had about 90 ohms on one of the circuits, but the other was essentially an open circuit (well over 1M ohms).
I've since pulled the stator off, and have begun looking for a replacement. The part number on it is 398-818535A3.
I've looked on multiple sites and phoned around to some shops and it seems like this exact part is impossible to get anymore.
The generic replacements online don't have the plastic coating so all of the wiring is exposed, and some of the listings specify that that type of stator cannot be used on a motor with the bolted flywheel magnets (which mine is) and only work with glued in magnets.
I was so close to getting in the water finally, but this has thrown a bit of a wrench in my plans. I'm wondering if anyone has any knowledge on if I can in fact use the generic replacement with the bolted magnet flywheel (some sites say it will replace my exact stator) or if I'm out of luck.
Thank you so much for any help!
For background, I picked up a 14' aluminum runabout with a hardly used 40hp 4cyl mercury (no serial number plate to be found, but I've figured out it's a 1989-1991). The boat had supposedly worked when parked, which was around 15 years ago and since then was sold with a property to the guy who sold it to me. I've redone all of the wood in the boat, and seats, and managed to get the motor running on the top 2 cylinders (no fuel to the bottom two), then I cleaned a ton of gunk out of the bottom carb and after putting it back together, with fuel to all 4 cylinders, I couldn't get it started and found it had no spark. While checking spark with one plug out it started once and ran on the 3 cylinders with plugs in very nicely, and I shut it down quickly since one plug was out. Since then, it's had absolutely zero spark, and the few times I had it running before cleaning the carbs it seemed to sometimes have no spark and wouldn't run.
Anyways, I've had zero spark since, and ran through diagnostics and narrowed it down to the stator. I had about 90 ohms on one of the circuits, but the other was essentially an open circuit (well over 1M ohms).
I've since pulled the stator off, and have begun looking for a replacement. The part number on it is 398-818535A3.
I've looked on multiple sites and phoned around to some shops and it seems like this exact part is impossible to get anymore.
The generic replacements online don't have the plastic coating so all of the wiring is exposed, and some of the listings specify that that type of stator cannot be used on a motor with the bolted flywheel magnets (which mine is) and only work with glued in magnets.
I was so close to getting in the water finally, but this has thrown a bit of a wrench in my plans. I'm wondering if anyone has any knowledge on if I can in fact use the generic replacement with the bolted magnet flywheel (some sites say it will replace my exact stator) or if I'm out of luck.
Thank you so much for any help!