Driven pulley O-ring size  By  gingel (Read 359 times)

Hello,

I have a SYM 125cc scooter (duke), and i know it's recommended
to replace the O-rings on the Driven pulley (rear pulley),
where the clutch is.
Here is a link to a diagram for another SYM 125cc scooter.
www.easyparts.nl/showdrawing/5423/68269/BE/0-968-1-m423-m5421-m5422-m5423-s5661-d68269/_Driven_Pulley_Assy.html
It's part number 21.

On that page it says the size of the O-ring is 38.8 x 1.9 mm ,
and i wanted to ask if this is a standard size for all gy6 125cc engines?

Anyone here ever replaced these o-rings, and remember the size?

Thank you.