sion Posted February 15, 2011 Report Share Posted February 15, 2011 Hi i was wondering if a ty 175 could be boared out to use a 250 piston thanks Quote Link to comment Share on other sites More sharing options...
tony283 Posted February 16, 2011 Report Share Posted February 16, 2011 Simple answer NO ! Tony Quote Link to comment Share on other sites More sharing options...
feetupfun Posted February 16, 2011 Report Share Posted February 16, 2011 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 Quote Link to comment Share on other sites More sharing options...
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