Hi there, Just bought my four year old a 2001 PW50 for Christmas. They are cool little bikes, and he was off and riding after about 30-40 minutes of practice with stop and go to make sure that he got the hang of the throttle. I did some cleanup on it today (changed oil, cleaned air filter, spark plug and carb), and replaced the gas with a fresh tank. It runs fine, starts right up and seems to run well. I will likely replace the top end, but other than that it should be fine until he gets bored with it and needs more speed. Then I'll either do some light hop ups to it or replace it with a better bike. When I took the carb apart, I could see the oil hose (owners manual calls it an oil injection pipe) coming from the oil pump into the carb. It doesn't appear to be held on with screws or bolts, or threads of any kind. I didn't want to mess with it, and was able to take the carb apart enough without messing with it today. But, in the future if I want to take it off completely for any rejetting or just to reduce the chance that I will damage the oil hose with it still connected, anyone know how to remove it from the carb side? Thanks for any info.