I'd just like to say that Kev and hunday are right; except that not all Teneres had foam filters fitted from new. I know of three that weren't, including mine. I had to buy my foam filter. Small price to pay for peace of mind.

I agree about the oil drain pipe - it is a menace. Hunday has the solution and everyone should seal the airbox sidecovers and do the pipe mod before there's a problem. I used blue (O2 sensor-safe) gasket sealant on mine. Fingers crossed...