I'm like 210, zero power on hills till I put 16x13 rollers in, then big difference in power on hills. Got the recommendation from the Chinese Scoot Club and I'm very happy with doing hills now. You should be able to get 35 on flat, do you use a NGK Irridum plug, if not mine is a 4629 C7HSA. I also put a cap of Seafoam in each tank to keep the gas clean and boost octane slightly.
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