Hi all not sure if anybody has any experience of Yamaha wr200 but if you have anything would be greatly appreciated as I'm having trouble figuring out why it is running so rich and oily ! It has a new air filter. New fmf system. New reeds. New floats and float valve. And a new main jet. Iv tryed changing the main jet and the throttle needle clip position and neither of these made it better and it still would not idle for more than a couple of seconds. Anything less than 1/3 throttle and it splutters. Above 1/3 throttle its fine. Speedyslyder thanks for your opinion I appreciate it. Il check to see if the oil im useing is Ok for oil injection And Il try the hotter plug too as I have loads for the blaster. I have just noticed that the pilot jet is stripped !! Is that Easy to remove ? I have new ones but not sure of the best way to get the old one out ?? Could this be the problem