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    Opinions Wanted re Other XS Models

    Hello I'm looking towards another XS possibly next year. It doesn't have to be a 650. If someone wanted a lighter XS650, how many other models are there, and are they similar, ie, won't blow up like a hand grenade as the TX750 used to I hear. * BTW, I had a chance to ride a TX750 about 6 years...
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    77/72 XS650 Disc to Drum ?

    I might do this. Discs are a PITA. They don't work well in the rain either unless you 'ride' the brake. Suzuki had a good idea, with their T500/Gt750, as they had dual leading shoes, as they used a real rod not a cable, and they had 2 pivots not 1. My BMW R75/5 had a cable, on a drum brake, and...
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    Brake Caliper Frozen and more

    Hello, I'm here for confession... I've neglected my (77 and 72) XS650(s) to the point where the F brake caliper is frozen, and, the brake lever/cylinder doesn't pump anything, AFAICT. I will get to fix it this coming Spring, after a long hiatus (divorce and...) away. Next year, 2023, is going to...
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    Engine Design Questions

    Curious, IIRC xs650 pistons go up and down together right ? Seems to me there is no other way due to it being a 4-stroke with 'only' 2 cylinders. Do all 2-cyl 4-stokes makers (Tri Nort etc) follow the same design ? they both go up/dn together ? How about a 4cyl 4-stroke ? Do 2 go up and 2 go...
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    Yamaha XS vs Triumph vs Norton (650-850)

    Anyone here ever have the privaledge to ride all of these (vintage only) to compare power (and more) ? I'm curious how much more 'engine' the Bonneville 750 or Norton 850 might have. Especially since the Norton 750 and 850 have a undersquare (meaning smaller bore than stroke) stroke of 89mm...
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    Wanted - XS650 in TN

    Hello I'm new here, but not to MCs in general. Been riding/racing 50+ years. Have an XS in PA for the summers. Looking for one to keep here in TN. Not looking for a museum piece. Thx
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    What Did a Big-Bore Kit Do...

    To the original powerband of your XS650 ?
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    Anyone Ever Stroke a XS650 ?

    Curious, anyone, ex-racers, ever do this ?
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    The perfect MC - XS-Almost

    My 1st thread :) Have/had a lot of MCs in my 6 decades... Have a 77 XS650. Almost the perfect bike...thought I'd improve on it on this cold winter day...in order somewhat... - wider ratio gearbox, for one reason so it would cruise at 60-70 with less rpm. Stock the gears are too close...
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