Bought 07 YZ250F With dry air filter How bad is it ??

[T-Bone]

My Buddy just bought an 07 YZ250F and after he got it home we looked in the air filter and it was dry and dusty. I took the filter off and there was a small layer of dust or dirt on the other side and now Im worried. It runs GREAT and sounds great but I want to know if I should keep it or not

 

[ellandoh]

How's the oil look? I would do a top end service on a new used bike anyway , there's your chance to make the decision.

 

[whenfoxforks-ruled]

The valves will go, then the rings. That was an expensive ride.

 

[killer454]

i just bought a 2003 yz450f with the head redone with new valves and i have already changed the oil and filter,new air filter,put ice antifreeze in it.
i can see the new gaskets on the top end,but i still serviced the bike before rideing it.

i would service that bike to!

 

[T-Bone]

sounds good !

 

[_JOE_]

It was probably due for a valve job anyway........