Here is the first engine we are working on. The challenge here was to remove the pinion gear. It is a taper shaft with key fit. There is extremely very little space between the gear and case to get a puller in. My machinest made a puller. Next is to separate the flywheels to inspect rod, crankpin, and bushings.
A different spare engine didn’t come apart quite so nice. Here is the cylinder:

However the good news here is the valves, lower end, piston and tod all look great. So all in all we are in great shape.

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2 responses to “Engine Work”
Is top picture engine from Fred? Sounds like good news!
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Top picture is from spare engine #1. Bottom picture is from spare engine #2. Original engine still in the bike.
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