Found a great deal on an xs650 for my next build. Basically looking to know power wise, will an xs650 have any problems doing 75mph down the hwy? I have never ridden one, keeping in mind the build is gonna be a 60's style chop, will an xs650 provide the balls to still make it a fairly quick rider? how will it compare to my stock Evo?
xs650 balls
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You want to mess with your front/rear sprocket combos, and invest in a MikesXS 5th gear overdrive if you have the right year that can utilize it.Comment
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my stock motor hardtailed chop was ready to shake apart at 65 with an 17/32 sprocket combo. I had the motor rebuilt with a 750 kit added and 18/32 sprocket combo and she cruises at 75 no problem.Comment
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mine get's a little sketchy over 65. i got, think it's a 17 up front with a 30 in the rear...another gear would definitely be nice...gets up to 65 pretty quick thoughComment
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Two different motors in the XS650. The early years 256 and the later 447. If you have a 447, you can do a clutch pressure wad swap with an earlier 256 that has the longer one piece clutch rod. The 447 motor is the only one you can use the MikesXS 5th gear overdrive on. Also, I think Hugh only rephases the 447 motors, I don't remember.Comment
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Two different motors in the XS650. The early years 256 and the later 447. If you have a 447, you can do a clutch pressure wad swap with an earlier 256 that has the longer one piece clutch rod. The 447 motor is the only one you can use the MikesXS 5th gear overdrive on. Also, I think Hugh only rephases the 447 motors, I don't remember.Comment
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Quoted from Hugh in an other thread
Carbs, Ignition, yes.
Also slightly different cam specs. 72 is hotter
Transmissions are cut differently, but geared the same.
72 MIGHT be a 22mm wristpin engine, if it is a 256 Engine, 447 Engine (82 model) will be a 20MM wrist pin and has alot more options for engine mods.
72 MAY not have an electric starter
256 Engines (early stuff) also have different Cam chain tensioners, and less teeth on the cam/crank gears.
Late Model Engines have an oil sight on the sidecoverLast edited by Hooligan80; 01-09-2012, 7:43 AM.Comment
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I had a '75 I restored to bone stock and it it was smooth at 75mph. I'm 5'11" 175. Best things to do to are definitely the 32/18 gear swap and some mikuni round slide carbs. Don't know what you intend to do with the bike style wise but shaving weight is a great idea too. Keep those tires inflated properly... uhh... don't go swimming right after eating? I'm out of advice. I'd recommend an xs. They've been good to me.Comment
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