I just bought a new Lifan 250 cc engine. I called the Lifan factory directly. They gave me a number of a retailer. The 200 cc engine is 11,000 baht..250cc 13,000. I bought the bigger one, and for 1000 baht I bought some extras....new power supply, etc.
but, I didn't buy it from the dealer I talked to. Instead, I talked to this guy...