Hello and thanks in advance for any help. To start with this is an 08 420fm. So I got this with a broken timing adjuster. Replaced adjuster and timing chain. I’m certain the timing is correct. I also replaced the fuel filter and spark plug and air filter. The problem is when riding, up to about half throttle it runs and idles great. Over half throttle it starts to stumble, and at full throttle it falls on its face and starts smoking(burning oil) blue smoke. Anyone have this happen to them. Any help is greatly appreciated!!!