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TY Mono bottom end

pjw123
in Yamaha

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Just acquired a Pinky in need of serious TLC. Mains in a bad way. Have a  fully rebuilt S bottom end which I was considering fitting. 

Q: .is there much of a difference between S,R & Pinky bottom ends,

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    As far as I know the engines were the same it was just the bodywork differed

  • Quote
    • 2 weeks later...

    All identical.

    Perhaps flywheel weights were different as the bike became more "modern"?

  • Quote
    On 3/8/2019 at 3:29 PM, rcgods said:

    As far as I know the engines were the same it was just the bodywork differed

    I'm sure the porting was different between S and R, the exhaust certainly was and I think the jetting, if not the carb.  Bottom ends probably the same.

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