Maintenance & Technical > KX500 Original

Crank Balancing

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don46:
I always like to learn new things, and as such Crank balancing has been on my mind, or more to the point how too balance a crank. Truing is no problem, or installing a new rod, but the balance part has me thinking, does anybody know how they do it? In my mind I would seperate the crank, remove the rod, piston, pin, circlips, lower rod bearing and washers, weigh them, re-assemble the crank with only the pin and attach a equal weight to the rod pin and then static balance it using a set of precision ways with knife edge wheels. This may not be the right approach but it seems to me that I read somewhere once that this was how it was done, any comments.

doordie:
This is mine crank made by my german friend Mike Melde. 8-)

My bike runs awesome with that crank,can not exactly explain why though.
Smooth out powerband and do not vibrate as normal with a big single
piston engine.

Tungsten is used to balancing against piston/rod. :wink:

kaw rider:
Doordie
has all the goodies in his motors.

Platypus:
How much for one of those cranks doordie?  I would love to reduce the vibration!

KXcam22:
Don,
  I'm no balacing pro but I think the idea is to balance the crank so the entire reciprocating mass, piston & rod inlcuded is in balance. Cam.

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