The 1976 rectifier never worked as someone hooked it up incorrectly, test it before you change it. They have the red tied into stator output.
I see the one you are talking about now. That was on the other engine that I now use for parts.
I went out there today and put the muffs on to see how the engine ran and was hoping we could go to the river. The motor never fired up, I checked and there was no spark to the plugs what so ever. I took loose all the wires I had hooked the tachometer and fuel gauge to, thinking maybe I had wired into the wrong thing. Well I must have done something wrong, I tried to fire it up again and all it would do is backfire and kick back like it had jumped time. Now I really don't know what to do, I am about at the point of giving up on this boat.
Just to let you know what I have done so far trying to get this boat on the water. We bought it in June, the motor hadn't been completely hooked up because the fellow just never got around to it. We had to buy two tires just to get it home. The motor on the boat was a 1976 85 hp Johnson Javelin, the man said the motor was good. I checked the compression and it was 100 psi on all cylinders. The motor ran really rough and would backfire through the exhaust, we took it to the river hoping it would blow all the junk out of it.
We went about 4 miles and went through 5 gallons of gas, I did everything I could think of and asked every question under the sun. I took the flywheel off checked the trigger and all under there was OK, put it back on and my grandson tightened the nut for me. Cranked it back up, still backfiring and running rough. Went back to the river to let it run in the water, wouldn't fire up at all. Woodruff key sheared in the flywheel. Replaced key. Never did get it to quit backfiring through exhaust, I took that engine off and put my other engine on which is a 1975 85 hp Johnson. After I got the engine on the boat I had to drop the foot and put a new impeller in. Put the foot back on and the motor and got the motor to running good, until I changed the rectifier and that is where I am right now.
There is way more to the story but this post has already gotten too long. I did find out why the Javelin was backfiring through the exhaust, the #1 and #3 coil wires were hooked up backwards, the fellow before me must have been in a rush or something.
My question now is, will the rectifier cause the engine to kick back, backfire and not crank?