Re: Need Help with a 1955 or 1957 Montgomery Ward
You are correct it is a 1955, 22hp, made by Gale Products Division of OMC. It is a Gale model 22DE10. It is very similar to a Johnson and Evinrude 25hp, with smaller pistons so it only makes 2hp. All J/E 25hp service procedures will apply.
Yes, you need a flywheel puller. Most use the harmonic balancer puller. Use Grade-8 bolts with it, screwed in 7/16", no more and no less. Then give it heck and it will pop off. Forget the mechanic in a can stuff. When you go to put it back on, the shaft and flywheel tapers MUST be shiny bright CLEAN and DRY, and you MUST use a torque wrench to tighten the nut to 60-65 foot pounds. Ignore these instructions and you probably will destroy the motor.
Uness they have aready been replaced, it will have bad (cracked) coils, so yes the flywheel does need to come off. Way more important than that carburetor you are trying to get to.
Do it right, and that fine old motor will give many years of service.