Hey a friend and I ran out of oil and the only stuff they had at the local store was Tc w3 outboard 2 cycle oil so we mixed it with gas and ran our bikes about 25 km with no apparent issues. I know it's water cooled but it says on the other oil which is not watercooled and it says you can run it in watercooled engines. Is this fine to use? We have 66cc kits from speeddemon.ca