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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Mark Newton, Mexican camping

I haven't been everywhere...
but it's on my list!


Photo by Mark Newton,
Camping in the Mexican desert



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  #31  
Old 2 Dec 2017
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Yeah I think so. I was giving it several minutes of heat at a time. When I used my new improved puller with some long bars for leverage it came off with no heat or hitting. Another one of those learning from experience occasions I guess.
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  #32  
Old 2 Dec 2017
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Coming a bit late to the party here, but the thread you can see in the parts diagram looks very like the thread in a Yamaha TTR 250 flywheel, and you use this to pull the flywheel off by winding a special bolt (or the rear wheel spindle, which is the same thread) into it, which pushes against the end of the crankshaft.
Glad the job is done anyway.
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  #33  
Old 3 Dec 2017
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I just removed my rotor with the Kedo puller, it came of effortless.
Once again, I highly recommend this.
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  #34  
Old 5 Dec 2017
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Slightly offtopic, but I figured you guys would still appreciate it.

This is why I removed my rotor. 800gram removed from the flywheel/starterclutch, was done over 2 times, but heres the final product. Still more weight to be removed, but we stopped here.
Hopefully this will remove some of the felling of dragging an achor in a bungy cord behind the bike


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  #35  
Old 5 Dec 2017
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Hehe good luck!
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  #36  
Old 9 Dec 2017
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Good carbs with an accelerator pump gets rid of that bog/lag/hesitation a person feels on these bike . Higher comp helps as well .

The 660 Raptors have a considerably lighter flywheel(and smaller dia) , they rev to 9k easily (but won't live long if let there ). These motor aren't tight enough tolerances to spin like that , but the heavy flywheel is what lets them sit at 60-70mph effortlessly , something I can notice the 660 doesn't do as well .


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  #37  
Old 11 Dec 2017
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Have made a new topic regarding reduced flywheel weight
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