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Rivets, Thank you for your quick response. I will source a new module/coil and try again after I receive it.

I am trying to find the correct replacement coil for a 1989 L21ZPN. I have shined up all the mounting points mag pick-ups, flywheel mags and the grounding tab. Compliant mower so open circuit to run, ground to shut off handle lever actuated. Cable is good, pulls off the flywheel brake and...

I am not sure where things took a wrong turn. The at one time running mower had the white case coil with 681410 molded into the part. This is the coil I expect has gone bad for which I would like to find a replacement. Sorry if I made things confusing. These pictures may help David

sgkent, thank you for the reply and link. I went out in the barn and found a box of Lawn Boy parts. Down in the bottom was the old coil part number molded into the case, 681410. Is the 1002949 coil the service replacement for my coil? I believe mine is a ground to run coil looking at the coil...

Model 8237 Ser 9424117. I am trying to save this one from the scrapyard. I pulled the engine and disassembled. Replaced bearings and seals top and bottom of crank and the drive shaft bearing and seal. Light hone of cylinder just enough to clean it up and put the crosshatch back in it. New...

Just finished rebuilding this engine. Everything reassembled and I have no spark when I tried to start it. This is a 1979 non-compliant mower with the ground to run switch on the top of the shroud. Old ignition coil has the number 681410 molded into the white plastic next to the spark plug...

The pulley was just stuck on the crankshaft from many years of not moving out of place. Soak over nigh with penetrating oil and it came loose with a tap from a wooden dowel and a small hammer.

10304 SER No. 6917431 Silver Series, I need to change the drive belt and I am not sure what to take apart. I have removed the plastic belt cover and the belt drive cable spring end. flipped it over and removed the blade nut, mulch fan, blade and blade mount plate and the belt guard plate...

First off with help from forum members I completed my rebuild on the 1989 L21ZPN and its running great now. Now I am working on I think a 1979, 8237 Ser 9424117. I had to source a used muffler from ebay. Old one had bad rust out holes. New used one looks great and no rust out or soft spots. So...

8237 Ser 9424117. Rebuilding this engine and ordered a NOS set of needle bearings OMC number 677963 for the connecting rod to crankshaft bearing. Dummy me lost a few needle pins when I disassembled the engine. There were 34 needle pins in the sealed package stuck together with some sort of...

1989 L21ZPN with the handle lever / bar actuated flywheel brake and coil ground wire combination assembly. Does the wire from the switch tab to the coil tab need to be grounded to run or grounded to stop the engine? I also have a 1979 8237 and I am pretty sure the off / on switch on the shroud...

Google search parts diagram pdf for your 8237. You will need the serial number to get the correct part numbers. Once you have the part number you can Google search for example Lawn Boy 611396 seals. These are the top and bottom crankshaft seals. I have had no problems finding all the parts I...