You have a model number so we know what your playing with? Should start 217- from the look of the pics. Looks like wrong plug should be a J13Y gapped at .30. Ohm test your ignition coil. The small motors used the J8 like the 1-2.5hp
can you post a pic. You dont see a metal tag on the transom bracket with model and serial number? In 74,75,76 the 3.5hp was made in Canada. The model number should start with 217-
Im wondering why this thread didnt show up as new till today? I would of been following. Ive never had to replace the head gasket on one. What did the manual show or say
Look at my profile picture. Had a guy on ebay custom make mine from a picture. Do not get water decals they suck. I typed in outboard decals and found a guy really easy. Parts are hit and miss. They are around. Ive restored over 30 old outboards as a hobby. Its alot of fun
1950 model. When you take the flywheel nut off you have 2 options. #1 use a puller #2 spray WD or PB on the threads and tap with a rubber mallet it might pop up. Dont lose the key way
Do you have a picture? I restored a Sears McCulloch 7.5. It was the oddball with one transom bracket low profile design like this one but was a McCulloch. They bought out Scott Atwater and made some the same engines but with the McCulloch name