Balance shaft removal.

[darren]

A lot of road bikes come with balance shafts likewise my 98 Ec

I have heard a lot of people using road bikes on track days and club racing remove the balance shaft gear with no adverse effect on the engine.

My question is if i removed the gear off my balance shaft what effect would it have on

a Performance.
b Engine

As later models do not have the shaft I am curious to experiment.

 

[iancp5]

a) It'll rev a little quicker
b) It'll vibrate a little more

I often wished my 300 had had a balance shaft!

 

[darren]

Do these characteristics carry over to the newer engines without the balance shaft??

Or have the engines been refined to reduce the vibration?

thanks for the reply

 

[gasgasman]

When I had my '98 GG 250, I pulled the c/b out.
It was a rip snorting beast then. It did vibrate more, but not to the point where I could not ride it.

You will need to use an automotive freeze plug to plug the hole left by the c/b shaft.

The newer bikes have a "pork chop" style balancer that's driven off the crank. They are no way near as smooth as the '98 bike.