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saw a guy with a modified gs450 motor pushing a little over 50hp(his claim)he used the 450 bottom end,gs500 jugs bored for gr650 pistons and a gr 650 head.i know it isn't an xs400,but the motors are similar size
saw a guy with a modified gs450 motor pushing a little over 50hp(his claim)he used the 450 bottom end,gs500 jugs bored for gr650 pistons and a gr 650 head.i know it isn't an xs400,but the motors are similar size
I think it came out to like 537cc's or something like thet.the 450 has a smaller stroke then the 650 did.wasn't sure what mods xschris has done,so it was only a comparison
We tried to put my old xs250 on when I worked at a rolling road shop, but we couldn't make a program for it as we needed all the gear ratios to get a true reading.
Yeah you'll want the ratios for the gear box, what sprockets your running and wheel sizes. Ours was a fuchs dunno and we're talking 6 years ago, there might even of been a program update with the xs400 on there but mostly the updates were for new models.