I bought a used 1998 Yamaha F50TLRW outboard in 1999. Guy I bought it from says he had no problems, but I have had to have the carberators cleaned out every 6 - 8 months since I've had it. I use a fuel stabilizer in the gas and run it about twice a month. I am disgusted and ready to trade it in unless somebody can tell me how to keep it running. Mechanics say all I can do is use the fuel stabilizer and run it regularly. Beginning to think this is not the engine for me.