the size of chain on the 1981 kz650 is a 530 or 630 chain. that is a pretty good chain in my opinion because it is very strong and it is pretty thick.
The size of the rear tire for a 1978 KZ650 is "M 130/80 - 18".
chain size is 630 pitch, o-ring style chain recommended
www.suddco.com
3.65LTRS
You can find the VIN on the stearing stem
62 hp @7000 rpm
It is located underneath the engine behind a round plate.
The owners manual for the KZ650 1977- 1983 reads as follows "- Spark plug Type .......... NGK B7ES, ND W22ES-U Gap ........... 0.028-0.031 in (0.7-0.8 mm)"
The chain size is 530. it was an O-ring from the factory.
size 13 - 13.5
Hi,The chain for a GSX750 as standard is 96 links long,size 630.
a 1000 uses a 20mm axel, a 650 uses a 17mm axel