Uni Filter Review - Kawasaki KLR 650 Forum
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post #1 of 13 Old 06-29-2010, 10:32 PM Thread Starter
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Uni Filter Review

Put the Uni in today. I never had any problem with the OEM. That said, since I got a Uni cheaper, I went for it. Definitely a lot more love went into the Uni. Really nicely made. Looks good (which doesn't matter, but whatever). I think it might fit a little bit better, but hard to say since I've cleaned my OEM filter a bunch.

I think it would be safe to say it flows more air. I have no quantitative backup for this, but it felt like it, and looking at the difference in the foam it seems like it must. Much less dense.

So, I'm digging it. Felt like the bike liked it, but I never got too scientific about getting the mixture perfect in the first place. My bike is not a swiss watch. Well made product. No drastic change. All good.




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

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Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
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2008 KLR 650
RIP DM - Soon, we ride.
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post #2 of 13 Old 06-30-2010, 10:20 PM
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Quote:
Originally Posted by Lockjaw View Post
Put the Uni in today. I never had any problem with the OEM. That said, since I got a Uni cheaper, I went for it. Definitely a lot more love went into the Uni. Really nicely made. Looks good (which doesn't matter, but whatever). I think it might fit a little bit better, but hard to say since I've cleaned my OEM filter a bunch.

I think it would be safe to say it flows more air. I have no quantitative backup for this, but it felt like it, and looking at the difference in the foam it seems like it must. Much less dense.

So, I'm digging it. Felt like the bike liked it, but I never got too scientific about getting the mixture perfect in the first place. My bike is not a swiss watch. Well made product. No drastic change. All good.
I'm a supporter of :If it aint' broke,dont fix it! I did remove the tweety tube and baffle out back,,,,and it doesnt backfire or pop,,and it sounds way better,,,,cross between a BEULL650,,,,,and a small DUCATI,,,,pretty cool.
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post #3 of 13 Old 07-01-2010, 01:18 AM
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I run both, OEM and the Uni. Keep one cleaned and oiled ready to go whenever I do an oil change. Swapping between the two I cannot tell any difference other than the uni having more bling factor.

Gray-haired riders donít get that way from pure luck.

Unknown
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post #4 of 13 Old 07-03-2010, 06:03 PM
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I tried installing my Uni, but it wouldn't fit. The bolt with the wingnut was too short. The K&N that came on the bike when I bought it fits fine. I don't have the OEM filter, but I have the basket/cage thingy and it fits the Uni filter just fine.

Any suggestions?

SK
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post #5 of 13 Old 07-03-2010, 10:26 PM Thread Starter
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You should use the OEM cage? I'm confused.




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.

Last edited by Lockjaw; 07-04-2010 at 12:49 AM.
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post #6 of 13 Old 07-03-2010, 10:50 PM
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Cage. The plastic lattice work ahead of the element that keeps the foam filter from being sucked into the intake port.

Gray-haired riders donít get that way from pure luck.

Unknown
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post #7 of 13 Old 07-04-2010, 01:42 AM
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I guess I'll answer the question. Sarthurk, if I was in your situation, I'd go to the hardware store and get a bolt that's long enough and use that.
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post #8 of 13 Old 07-04-2010, 02:10 AM Thread Starter
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I still don't understand the question.




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.
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post #9 of 13 Old 07-04-2010, 02:42 AM
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He said the bolt won't reach the nut.
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post #10 of 13 Old 07-04-2010, 07:57 AM
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I think the bolt not reaching is a red flag. Air flow statistics aside, an air filter's primary purpose is to filter all air entering the air intake port. This won't happen if the filter does not seal. And that is the biggest problem I see with after market air filters. Too many don't seal. The French kiss of death for an internal combustion engine. Something is amiss. I would be finding out what before running that engine with a questionable air filtration system. Is it possible that the filter is not seated properly? You sure this filter is for this application?

I'm more than a little pessimistic about the reliability of most after market air filters systems in all applications. I am mortified at the amount of crud I find in intakes that I don't find in intakes operated in the exact same conditions using the stock air filter systems. It seems the gains of minimal increased air flow come at the price of a potentially destroyed engine in a short amount of time. Many blame gasoline and it's tendency to gel and varnish, and lacquer up the carburetor for the majority of our troubles. Add unfiltered air and everything it carries into the mix and you might just as well be feeding your engine valve grinding compound. I also contend that one of the biggest reasons there is a lack of uniformity in carb balancing is because of improperly sealing air filters.

The suggestion of a longer bolt might be the solution. Please look into the possibility that you may have a fitment issue. Anything you report will be useful to everybody considering or currently using an after market air filtration system.
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