Exactly, tell us what 2stroke 500...what 500cc engine?
suzuki make RM500, LT500, RG500, GT500, T500?
GT500 is twin cylinder 500cc 2-stroke air cooled
RG500 is quad cylinder 500 2-stroke liquid cooled
LT500 is single cylinder 500 2-stroke liquid cooled
RM500 is single cylinder 500 2-stroke air cooled
T500 is single cylinder 500 2-stroke air cooled