YZ 250 Flywheel
YZ 250 Flywheel
Hey guys, new to this forum, looking to pull my flywheel on my yz to spin my stator to get a little more power before my big bore kit shows up. wondering if anyone has any tricks since i do not have a fly wheel puller.
- Dobi
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Re: YZ 250 Flywheel
not sure I would want to attempt it without a puller. Trying to pry it off would likely result in damage to the case. The pullers are fairly cheap and can cover multiple bikes. I have one for a KTM that you could use, not sure it would work though....
Re: YZ 250 Flywheel
I think I have the puller to fit your bike, but I would question the wisdom of advancing the timing on a bike that is already pretty highly tuned. You will likely need race gas and may damage your engine anyway. Is that what you mean by "spin the stator"?
Re: YZ 250 Flywheel
Yea I was going to spin the stator in order to advance time just a little bit. I've read many forums and lots of people say if you spin your stator 1/16th of a inch counter clockwise you make a little more top end power with no effect to bottom end. Was going to try to see what the effects are like. What would the negatives be to this??
Re: YZ 250 Flywheel
If you push it too far...What would the negatives be to this?
- thirtyseven
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Re: YZ 250 Flywheel
Will you get "more power" or just change its characteristics?
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Re: YZ 250 Flywheel
I retarded the timing on my bike (but I have a 295 kit) and I still have more bottom end than I need and it did an amazing job of smoothing out the power band. I would recommend this for riding trails, advancing the timing is likely going to make your bike more difficult and tiring to ride. Although I didn't have to remove my flywheel to do it
Re: YZ 250 Flywheel
Yea I actually retarded my timing a little bit. Went for a test ride today and it felt really good. Gonna take it out to trails tomorrow