Lifan engines are commonly used on pit bikes and as replacement engines for Honda Super Cubs, Trail 70s, 90s, and other small scooters. Tell us your success stories and your horror stories with Lifan engines. My story is one of success. I currently own 3 Lifan engines and used to own a 4th. First one I bought was a Lifan 200cc dual sport motorcycle in 2007. It's a good runner that has never missed a beat in 24,000 miles with only normal maintenance. 1 spark plug, several valve adjustments, many oil changes. Second one I bought was a 110cc manual clutch to put in a 71 Trail 90. Gave it to my daughter who put about 2,500 trouble free miles on it before selling it. Only normal maintenance. Oil changes, valve adjustments, 1 spark plug. Third one I bought was another 110cc manual clutch to put in a 68 Trail 90 resurrected from the back yard junk pile. 2200 trouble free miles then engine transferred to a 65 Super Cub where it continues to run perfectly. Forth one is a 140cc manual clutch to put on the 68 CT 90 for more power. Only 250 miles on this one so far but it's a strong runner with lots of torque. This will be my main commute and trail bike this season when I expect gas to be over $4 gal. Here are pics of the Lifan powered bikes. The 200 Lifan dual sport and 71 Trail 90 with Lifan 110 engine. 68 Trail 90 rat bike with Lifan 140. 65 Super Cub with Lifan 110.