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Shift shaft splines

Started by SoCal250, October 21, 2020, 02:03:51 PM

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SoCal250

Are the RD250/RD350 and RD400C-F splines identical on the shift shaft? Thx
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

stresa

Hi,
according to the part books all RD's up the C/D model have the same shift shaft with the part number starting with 278. The european E/F models have a different one, part number starting with 2R8.
Regards Uwe
81 Jackson Special 250, 2x 74 Yamaha RD250 racer + 1 street racer, 78 Yamaha RD400, 72 R5/RD350, 74 RD250 dirttracker street, 75 Yapol TZ250, 89 Honda RS125,
80 Hejira TM250, RD375/3, 77 Höpfner-TD3, 76 RD/TD3,
74 Yamaha TZ/RD250A, 78 Siroko TZ250, 75 Bakker TZ350B, Tomic 200, Waddon Rotax125

SoCal250

Thanks, yep figured it out. Same part used
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

Dvsrd

FWIW, several other Yamaha models share the same shift shaft splines. My RD350, XS650 and XT250 have the same. Same for XT500 and 350LC. And most likely a lot of other models, Even Hondas  Some Suzukis have a coarser spline though;

m in sc

^ yup.
honda def shares the same spline on some models. and kawasaki. suzuki is the odd ball.