need tranny info - 78 kz-650 motor

Hi.

I need some info for a stock 78 KZ650 motor.

Anybody know what the Primary drive ratio is?
Anybody know what the Transmission drive ratio is?

Need this info to pick front and back sprockets for drag racing.

Thanks.

If this website is still up you can find a gearing worksheet in Excel format, it should be very helpful determining sprockets

www.cunnington1.freeserve.co.uk/gearing_v12.xls

My manual says Primary reduction ratio is 2.55
and the Final Reduction ratio is 2.63, stock sprockets are 16/42.

1st = 2.33
2nd = 1.63
3rd = 1.27
4th = 1.04
5th = .89

Thanks dude.