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Ty 175 piston

sion
in Yamaha

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Hi i was wondering if a ty 175 could be boared out to use a 250 piston thanks

  • Quote

    A TY250 piston can be used to get the motor to about 190cc, but it is not as simple as boring the hole bigger because the gudgeon pins are different diameters and the cylinder requires a bigger OD sleeve

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