Motor model number is J90TLCNB so it's a 1982 Johnson 90HP long shaft. Motor sat up probably 10 years in a pasture. Was a sight to see for sure. On top of that it was run in Salt water occasionally. Anyhow, I got the thing and hauled it to the house and started working on it. When I pulled the hood off it had a wasp nest as big as a pie plate and the top carb was the flooring to a mouse house. Me I like a challenge so it didn't bother me much. The powerhead was covered in old grease and oil which was probably a help to be honest. Anyhow, I cleaned this thing for several hours and then was able to do a facts check. It looks like it's been rebuilt not too long ago. It's got two different heads and the crankcase cover is Evinrude colored. I pulled the plugs and they looked great. Cylinders had a little oil in them. I jumped the starter and did a compression test. Lowest was 132 and the highest was 138 psi. After heating bolts with a torch I dropped the lower unit and the water pump was full of roach eggs. The impella was nice and oily and looked almost new. Cleaned all that out and put the gearcase back on. Also noticed someone has put two new CDI power packs on it just before setting it up. Checked spark and it was really good. Next I cleaned the carbs which were full of syrupy oil. At this point I was ready to crank it. Got my tank and plugged her in, put the muffs on and hit the starter. After 30 second or so of cranking it fired right up and idled with a little miss. Got to looking and found two coil wires corroded where they connect to the coils. Fixed that and she idled and revved perfectly. Took it to the river and put 12 miles on it without so much as a hesitation or miss. Was impressed for sure. Got to looking the thing over again and noticed a couple of things. Had a smidgen of water in the lower unit, the lower exhaust housing was missing, and no thermostats. I resealed the gearcase, replaced both thermostats and poppet valves and replaced the missing exhaust cover. Took it back to the river and ran 18 miles. Now instead of running perfectly, it idles perfectly, and runs perfectly from mid range to high speed, but has what sounds like a high speed miss when transitioning to mid range/high speed. Thinking it may have something to do with it running much warmer than it was with no thermostats. Haven't gotten around to figuring that out yet. Any suggestions appreciate.
Now to the questions about the rectifier and regulator. After checking the battery with it running using a volt meter I noticed it wasn't charging. Pulled the rectifier and it has a huge hole in back and the regulator is missing. It has tilt and trim so I assume it has the 10 amp stator but don't know for sure. My question is, do I have to replace the regulator with the OEM model or can I just replace the rectifier with the CDI model 193-3408 regulated rectifier? I'm seeing mostly used regulators and new ones are too expensive. They were running the rectifier without the regulator. Should I just replace it and see what voltage it's putting out. I noticed in the terminal block, it has the purple wire with battery voltage on it with the key on. Leads me to believe it had a regulator.Trying to decide how best to get the charging system back going. Oh, and this is my first post by the way. Sorry to be so long winded!
Now to the questions about the rectifier and regulator. After checking the battery with it running using a volt meter I noticed it wasn't charging. Pulled the rectifier and it has a huge hole in back and the regulator is missing. It has tilt and trim so I assume it has the 10 amp stator but don't know for sure. My question is, do I have to replace the regulator with the OEM model or can I just replace the rectifier with the CDI model 193-3408 regulated rectifier? I'm seeing mostly used regulators and new ones are too expensive. They were running the rectifier without the regulator. Should I just replace it and see what voltage it's putting out. I noticed in the terminal block, it has the purple wire with battery voltage on it with the key on. Leads me to believe it had a regulator.Trying to decide how best to get the charging system back going. Oh, and this is my first post by the way. Sorry to be so long winded!
