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Kawasaki MX & Off-Road Dirt Bikes
KX500 balanced crank?
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[QUOTE="cujet, post: 792624, member: 19501"] Having spent quite a bit of time with an ACES balancing setup on 2 stroke engines, I can say without reservation that it is impossible to achieve smooth operation. There are those who will say that it can be made smooth at any single and specific RPM, discounting low RPM's of course. That simply is not so. If you spend some time thinking about what is going on with the various internal forces, you will come to understand why this cannot be done. However, all is not lost. The KX500 engine is a vibration monster. It seems Kawasaki did not do the best job possible in the first place, so there is room for improvement. The Honda CR500 engine is somewhat better, but it can be improved upon also. As I have mentioned here before, I spent some time with my equipment understanding X and Y axis accelerations on my Husky 360 2 stroke. I was able to modify the balance factor for a smoother overall experience. Quite simply, by changing the balance factor you will move vibration from one axis to another on a single cyl engine (fore and aft vs. up and down). Certain chassis will respond better in one direction than the other. The rubber mounting solution is actually a good one. It is almost too bad the engines do not have enough beef on the mounting flanges to accept a proper rubber bushing. Chris [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX500 balanced crank?
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