From the info I could gather, its a mc9 with a square head from mc91. Im pretty sure my exhaust port is ribbed so that rules out mc90. I will probably try to find the correct head.
5* flywheel is correct for mc9 thru 91.
hi, Im trying to figure out what engine i have. The ebay auction said it might be mc91a but i didnt think it was because it has 3 round exhaust ports, not two rectangle ports.
Crank has 48586 stamped no "c" or "b" which is coming up mc-7 i think . block has mc-9 stamped.
I need to get the...
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