Hi, I'm hoping someone can help me out. I have an 03 KLR 650 that I bought used about a year ago. At that time it had 4600 miles. After buying tons of aftermarket parts and pieces I finally have the motorcycle set-up. But, I now have a problem and don't know what to do.
One of the aftermarket parts I bought was a K&N metal mesh airfilter. During a 3 day offroad trip in extremely dusty conditions my bike started running rough, eventually dying completely on the trail. After checking everything, (fuel, spark) I pulled off the airfilter and it was totally blocked with dust. And with no air getting into the engine I fouled the plug. I cleaned it as best as I could in the field and made it home eventually, with the bike running rough and underpowered the whole way.
Once home, I went back to the stock airfilter and installed a new plug. In the month since that trip my bike now blows blue smoke especially on deceleration. What kind of damage do you think I did to the engine? What tests should I do? Anything specific I need to look for?
Any and all help is greatly appreciated