KMX125 Chain and Piston Calculations

[rallymark1]

Hi,

Trying to nail two birds with one stone in this topic.

1st What size chain does a 125 KMX have?

2nd For measuring the CC (power) for a motorbike what calculations do you have to do for the measuring of the piston and isn't there something to do with the stroke?

I am trying to calculate the CC size of my KMX field bike as it has been overbored and it is no longer a 125...

Thanks
____________________
Suzuki TS185 (1978), Yamaha YZ125 (1989)

[alien.46.uk]

IIRC the size of the overbore is normally stamped on top of the piston.
____________________
2007 Kawasaki ZX10R :: 1998 Kawasaki ZX-9R - SOLD
1998 Yamaha FZS600 Fazer - SOLD :: 1994 Aprilia Pegaso 125 - SOLD

[rallymark1]

ideal, ill have a look later today, also while bike is running the KIPS is leaking a small amount of oil out of the cover.

Could this mean that the rings on the piston are worn and theres oil passing up through? The bike seems to go well enough and doesn't seem to lack power.
____________________
Suzuki TS185 (1978), Yamaha YZ125 (1989)

[Liamo]

[rallymark1]

If your looking at the rear of the bike its the left hand side, its the side with the KIPS cover on, not the exhaust side with the powervalve linkage.
____________________
Suzuki TS185 (1978), Yamaha YZ125 (1989)

[Liamo]

[Liamo]