Air Filter - Kawasaki KLR 650 Forum
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post #1 of 10 Old 08-17-2013, 03:44 PM Thread Starter
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Air Filter

How common is it for the KLR's air filter to have a black area on it from dust in just a few miles. ( Less than 1,000 )
I don't notice any oil coating inside the KLR's filter box.

I live in North East and Don't normally ride dirt roads much.
I also notice that there's a bit of dust under the seat area. Does the KLR have more tendency to pick up road dust due to it's construction?

My Honda NX250 is ridden on more gravel roads, and doesn't seem to get as black, just some dust.

Another question. Can some one give me a rule of thumb as to how much filter oil to put on the filter foam after it's cleaned and dried?

Ageing Gracefully



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My KLR Page..http://www.powers31.info/2011_KLR650.htm

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post #2 of 10 Old 08-17-2013, 07:28 PM
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My filters always have a certain area that gets dirty before the rest of it. Must be where the incoming air hits first. Normal in my observation.

Oiling. There are all kinds of filter oil on the shelves and for me, that's where they stay. I use Rotella in the crankcase and the air filter. After cleaning and drying the filter I put it in a ziplock bag, add oil, knead to saturate, remove, then wrap several paper towels around it squeezing to absorb the excess.

I'm sure someone will be along shortly to extol the virtues of No-Toil products.

Gray-haired riders don’t get that way from pure luck.

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post #3 of 10 Old 08-17-2013, 11:02 PM
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My filters always have a certain area that gets dirty before the rest of it. Must be where the incoming air hits first. Normal in my observation.

Oiling. There are all kinds of filter oil on the shelves and for me, that's where they stay. I use Rotella in the crankcase and the air filter. After cleaning and drying the filter I put it in a ziplock bag, add oil, knead to saturate, remove, then wrap several paper towels around it squeezing to absorb the excess.

I'm sure someone will be along shortly to extol the virtues of No-Toil products.
That is exactly how I do mine too. Clean rags or paper towel around the oily filter and squeeze out as much as possible. I have been doing it that way for 30 years now.....
Regards....justjeff
P.S. I clean mine with Sunlight dish soap and hottish water in the kitchen sink where you can rinse it well from the inside out. Of course I'm not married.....Oh! and squeeze in clean rag to dry.
jj

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Last edited by justjeff; 08-17-2013 at 11:06 PM.
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post #4 of 10 Old 08-18-2013, 03:37 PM Thread Starter
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Air filter

Thanks guys!
It's kind of hard for me to wrap my head around oiling a piece of foam, and expecting it to pass air through. All my previous bikes, and cars, had paper type filters.
Seems like if you put to much oil in it, there would be some restriction of air passage.

A guy I know is getting out of riding, and gave me a quart of Kawasaki oil made for air filters. I tried to use it on my "alternate" filter, and it seems to be real thick. Hard to get the complete filter evenly coated, unless I put a lot of oil on.
When I bought the second filter from dealer, it seemed to be very lightly coated, and not as heavy oil as this stuff made for filters. That's why I'm trying to get a feel for just how much is enough.

Would it be possible to mix the oil with some type of thinning solvent that would evaporate and leave just the oil in the foam?

Ageing Gracefully



2017 Yamaha XT250
1990 Honda NX250 (Green/White)
2011 Kawasaki KLR 650 (Orange & White )

My KLR Page..http://www.powers31.info/2011_KLR650.htm

Mod's to KLR:
Power socket, L.E.D. Battery Indicator, Camera bag holder
Custom Saddlebag frames .
Louder horns, Firstgear Onyx tail bag.
Custom Aluminum Skid Plate.
Cut down seat with Custom pad.
Go Pro Camera mount.
Doo-Hicky
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post #5 of 10 Old 08-18-2013, 11:15 PM
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Never tried that. Be careful what solvent you try. You may end up with a ball of goo for a filter. Gasoline should be OK as a solvent though.
Regards....justjeff

It's not a Tractor....It's a LOCOMOTIVE!! Chugga Chugga
Woooo WOOOOO!!!!!
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post #6 of 10 Old 08-19-2013, 09:39 AM
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I don't think it's "called for," but an old habit of mine with foam filters is putting a small bead of grease around the base end of the filter to insure a good seal against the plastic housing. Don't know if it really does any good but figure it can't hurt anything.



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post #7 of 10 Old 08-19-2013, 12:24 PM
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I don't think it's "called for," but an old habit of mine with foam filters is putting a small bead of grease around the base end of the filter to insure a good seal against the plastic housing. Don't know if it really does any good but figure it can't hurt anything.

Works better to put the grease on the airbox not the filter IMHO.

No-Toil makes stuff called Rim Grease, nice and sticky.

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post #8 of 10 Old 08-19-2013, 12:35 PM
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Works better to put the grease on the airbox not the filter IMHO.
Yeah, never thought of that. Makes sense since you have to kind of finagle the filter in there and I'm sure with my technique some of it winds up where it's not supposed to. I'll give that a try next time. There was enough left on the housing this time I didn't add any new grease.



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post #9 of 10 Old 08-19-2013, 01:09 PM
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I often wonder whether my 2009 bike's habit of burning oil originated with a dirty air filter that allowed grit into the chamber. Probably not...too may similar stories.
Anyhow, I now change/clean my air filter at every oil change: 3,000 miles. And when I do, it is REALLY dirty!
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post #10 of 10 Old 08-19-2013, 07:53 PM
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I clean mine with simple green and garden hose, let it dry completely, then spritz air filter oil on it, then just rub it around with fingers until its lightly tacky on the outside of the filter. I bought rim grease recently, used it and don't like it at all. I went back to all-purpose Walmart red grease. Works better. The rim grease is bio-degradable but it was "melting" way before I needed to clean the filter.
Using too much oil of your air filter is not a good thing.

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