I'm trying to find the correct thickness (diameter) O rings to buy for my 87 LT500R motor that is about to be cut for the rings. I've been to my local shop and they stock Viton rings ranging from 2.0mm to 2.5mm for the outer ring and 2.5mm to 3.0mm for the inner ring. If someone has some o rings lying around out of their quad, can you pleeeeeease measure their diameter for me....it would be hugely appreciated. Thanks.

  Thanks Mtsnieg