I'm breaking in a 70cc kit on a puch and I started out with a 92 (which is WAY rich) but I wanted the extra safety, I whent down to 88 & 86 running 2 tanks at each jet level now I'm running 84 and I think it will end up @ 80 or 78, I also ran my oil at 32:1 (better safe & smokey) but this is my first kitted scoot so I wasn't trying to ring it out too soon.