Just recently got back from a 5 day long trip for florence oregon. Bike has be parked in my garage for a month and only has 27 hours. I planned on riding tomorrow but wanted to get my oil changed. I started the process and popped the oil filter only to find it filled with sand. I know this is not good and I am surprised the bike continued to run down there but who knows how long the sand was in there. So I know I need to pull this thing apart. I am not sure how sand got in there. I had a brand new twin air filter on with a prefilter cover over it. My only guess is because the airbox had sand in it, the sand may have got drawn in throught the crank case breather. Pulled the filter and there were small particles behind it, but nothing huge, and I would think the throttle body would get gummed up first. Anyways, what would you guys do if this was your bike? My plan is to pull the motor out of the bike. Take the valve cover off and inspect the head. I plan on taking the head to a friend who runs a machine shop that does head work. I will have him disassemble it and put it through the parts washer. Obviously checking the piston and cylinder for damage is the next step. I guess my question is if everything looks good should I button it back up and ride it? My other thought is to split the cases and also have the lower halves washed out. What are your guys' thoughts? Here is a picture of the filter cover with sand on the walls with light shined on it. Thanks.
Edited by twheat, July 18, 2014 - 01:02 AM.