[Ferdi78]

I have a k&n filter that I cleaned and sprayed before my trip. It was dusty while riding, I noticed when I went to clean the filter, the air-box was full of a slimy liquid that resembled the color of the k&n oil, but had a smell that was maybe gas? Not sure. Maybe over oiled? I have a 2017 rancher 420 with low miles, only take a one trip a year. Not abused at all. Not sure what’s going on. Any suggestions or advice would be great.


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[_Wilson_]

I have a k&n filter that I cleaned and sprayed before my trip. It was dusty while riding, I noticed when I went to clean the filter, the air-box was full of a slimy liquid that resembled the color of the k&n oil, but had a smell that was maybe gas? Not sure. Maybe over oiled? I have a 2017 rancher 420 with low miles, only take a one trip a year. Not abused at all. Not sure what’s going on. Any suggestions or advice would be great.


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Ya i use k&n , but NOT on my 300s sounds like you've over oiled it. You only coat those till they turn red, not till there dripping wet, but .... It won't hurt, can you post a pic ????

 

[SlammedRanger]

There is always a very light mist of fuel that doesnt make it all the way into the engine. That mixes with your air filter oil. It can also come from your crank case breather also. Which will be more of a moisture build up if its not ran much or for very long you will get that and again it will mix with your air filter oil and be sticky and smell like gas. I get some blow by out the crank breather but doesnt sound like you ride hard enough for that to be the case.

 

[LedFTed]

i am not sure what kind of oil to use on stock air filters, so once i used motor oil. dont do this... it dissolved part of the filter. aint no telling how much went through the intake, fouled up plugs... i had to use a ******* air filter, till the new one came in.. it consisted of a 12 pack budweiser carton, folded, and rolled. a vacuum cleaner pad, and the clamps that go with attaching it on.. it actually worked quite well, and was a tight fit.. it served its purpose till i got the new air filter in the mail...
just make sure you didnt over oil it.. i dont know how k&n filters work.. some of the older cars, trucks & tractors of my era, used oil based air filters. the 46 ford tractor has this type of system. it is sum, before my time.

 

[SamUK]

There is always a very light mist of fuel that doesnt make it all the way into the engine. That mixes with your air filter oil. It can also come from your crank case breather also. Which will be more of a moisture build up if its not ran much or for very long you will get that and again it will mix with your air filter oil and be sticky and smell like gas. I get some blow by out the crank breather but doesnt sound like you ride hard enough for that to be the case.
[/QUOTE

^^ This is the answer to your question ^^

 

[rustynut2]

Been using engine oil on motorcycle filters all my life, that's what is recommend. Clean with kerosene or light solvent, blow dry, put in viplock bag and oil. Remove and squeeze out excess oil in a rag. Would never use that sap in a can as it will go down stream to any sensors along the way.