Each and every component in these engines is made for trustworthiness and longevity. This engine comes with by far the most upgrades in it's class, like a totally upgraded spark system, open transfer ports, copper head gaskets and additional beefy mounting studs. The engine is the center on the motorcycle. https://bikeenginesexplained61592.digiblogbox.com/59605254/predator-engine-mini-bike-secrets