There are no stroker plates. Does this summarily exclude the possibility of these being KHR flywheels? I have not and would like to avoid seeing the pistons, as the bike runs reasonably well. It takes quite a bit more enrichment than the baseline Linkert setup on the high speed adjustment, which may give an indication of increased displacement. I have an 0.063" jet on a 1-1/2" M61B and find I need more than 2 turns open on the high speed needle.
I can't find any pictures of other flywheels with the same distinguishing features: thin rim which expands into the counterweight portion without a step and the extra holes near the pin.
Attached is a picture of the WR flywheels, which are the one that are "supposed" to be in this engine. The obvious differences are the step in the rim at the counterweight area and the lack of extra holes near the pin.
- received_615259855639361.jpeg (133.72 KiB) Viewed 14735 times