Author Topic: RM250A B C cylinder heads  (Read 2240 times)

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Offline TJR426

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RM250A B C cylinder heads
« on: May 28, 2019, 10:38:13 pm »
Can anyone confirm if a 1976 RM250A head will fit 1977/78 RM250 B/C barrel. Thanks in advance

Offline LWC82PE

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Re: RM250A B C cylinder heads
« Reply #1 on: May 29, 2019, 01:06:17 pm »
It will but the 76A is for 70mm bore so the head combustion chamber is machined out a bit wider compared to the 67mm  77/78

76 has central spark plug too
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022