Join Date: Nov 2009
Location: Lander, Wyoming
I'll suggest to not be so stingy with the air filter oil.
I use enough air filter oil that I can squeeze at least a few driplets back out between my fingers. If one can't squeeze some oil back out of the foam, some areas of the foam are not oiled well enough.
If you would care to use a dab of grease under a fair sized flat washer on the air filter center bolt, it would be like most real dirt bikes I've owned or serviced.
A thoroughly oil foam air filter is the absolute best defence against dust ingestion for an internal combustion engine. I doubt that one could find a single competition dirt bike in the current market place which comes from the OEM with any other type.
High pressure compressed air can actually open the pores of paper type air filters and then allow slightly larger particulates to pass thru. They are intended to be used once & then disposed of!
One can thump and bump and tap the worst of heavy deposits out of paper filters as a quick & dirty short term 'fix', but replacement is best.
OEM motorcycle paper disposable filters are always pricey, aftermarket brands are less expensive, but people still attempt to re-use. Not a good plan, in my opinion.
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 83,000+ miles & counting
Last edited by pdwestman; 10-14-2018 at 05:55 PM.