This motor doesn't need high performance upgrades to smoke nearly 2-stroke all over. With its stock low profile head, speed carb, large bore exhaust, and 80cc crank set up, this engine receives the same speed as sup'ed up 66cc's- if no more! Motor scooters typically contain the engine as part https://bikeengineskits83653.yomoblog.com/41691875/details-fiction-and-engine-bike-number