2 Strokes Down Under

This may sound like a bit of a dumb question but how many selector forks should I have in a 74 RD350 gearbox. My Haynes manual says 3 (2 rear of the selector barrel, 1 forward) but the engine had 4 when I pulled it apart and seems to only go back together and make any sense with 4

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We're there different models that were built differently?

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I remember reading somewhere recently that the earlier 5 speeds had 3 selector forks and the later 6 speeds have 4.

Perhaps that ?Haynes manual was written for the R5 and Ds7 series bikes and then updated (mostly) for the RD. There are a few manuals available on line and plenty of parts schematics to. Try Partzilla or CMSNL.

Cool thanks, I figure it has to be something like that. It all seems to go back together properly with the 4 forks and it's the only way it all fits

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Maybe Yamaha forked up