K&N filter that fits directly to carb?

[Dammit!]

Not sure if anyone would know this, but I've been looking for a K&N filter that I can attach directly to my carb, negating the need for the intake hose and airbox (I run it with the lid open anyway). I used to see these a lot back in the day but not anymore. Anyone happen to know the part number for the right size filter to do this so I can just order one instead of matching them up at the shop and paying too much?

Edit: Oops! It's for a 1986 250R with a stock carb. That might help.

[smokey]

measure where the boot clamps on to the carb and then go to http://www.rockymountainatv.com type in K&N clamp on

[Dammit!]

I'm looking on the site now but I don't see the measurements on this page. Am I missing something that's right in my face again? :o

[MTS]

you can go to www.kandn.com and they have a thing to select the year and everything of your vehical....i took the librity of lookin for ya ...your 2 choices are
http://www.knfilterchargers.com/sear...x?Prod=HA-2440
and
http://www.knfilterchargers.com/sear...Prod=HA-2440PR

[Dammit!]

That's the one that goes inside the airbox (already have one). I don't think the one I need is made specifically for a 250R. I need to just figure out which one is the correct size to not only attach directly to the carb, but also fit in that small space. It's got to be a pretty small filter but I know they make them (or at least used to).

I'll probably just have to measure the carb and then just go to the bike shop and write down the part number for the smallest one that will fit and then see if I can find it online. The shops want around fifty bucks for these things which is just ridiculous.

I was just checking to see if anyone here had already been through this process and might be able to save me some trouble.

[Lots_Of_Nothing]

You cant go directly off the carb, there is a frame rail right there. You may be able to get a filter small enough, but its gonna be so stubby it wont be worth it. Here's what you do. Get a piece of PVC pipe or metal pipe(preferable same size as carb, or a little bigger) Then get a piece of rubber (big hose) to clamp one end on the PVC pipe and the other end clamp onto the carb. Then, get a k&n universal filter the same size as the PVC pipe, clamp it on, ta-da. All you have to do is make the PVC long enough to clear that damn frame rail right infront of the carb. If you've ever seen those "airbox elimator" kits, they are exactly what I just explained to you. Only difference is the PVC pipe is painted fancy, and the price is jacked sky high for something so simple.

here's what the ESR one looks like; as you can see, exactly as I explained, just cost a helluva lot more!




EDIT ** Forgot to mention, ESR charges $35 for that, so if you'd rather have one just like that, you can buy it from them. But as you can see, it would not cost more then around 5 bucks to make one. (not counting filter cost).

[Dammit!]

I could swear I've seen them attached right to the carb before. Maybe that piece was painted black or something so it's just not sticking out in my head. Seems like a small, tapered one might work if it angled to the side a little bit but this is probably the better way to go. Thanks for the tip!

[ejc042]

what is the diameter of the carb inlet?

[Dammit!]

I need to measure it still. The intake boot is really stiff so taking it off and on is a major pain in the butt so I kind of dread doing it. That's actually one of the main reasons I want to do this in the first place, besides it just looking better with no airbox. I was thinking I could cover the hole in the airbox and use it to carry a few things when need be as well. Maybe keep my digital camera back there.

[ejc042]

Check this link, it has K&N universal filters by measurements.
http://www.knfilterchargers.com/search/univcone.aspx

[Dammit!]

Whoa, the motherload. Thanks.

[ejc042]

I thought that might help, that link is the cone shapes. they also have the round ones as well, but I thought the cone shaped ones might be mopre what you need.

[BigGreenMachine]

Thats a neat idea about the airbox, good thinking.

Make sure you get a Outerwear for it when you buy the K&N, they have water resistant Outerwears now that repell most of the water from bad weather and puddles that may be otherwise sucked into an unprotected filter.

[AZ250R]

DAMMIT, I had really wanted to do someithing like the ESR one here for... well... forever but never followed through. Your never going to get one on the carb that will be worth it IMO, too small too tight for space. I think we need to have one welded up @ a muffler shop like the ESR one but with a bracket to hook somewhere @ the subframe for good support! I'd love to switch, but you difinately need to run prefilter covers @ the dunes & I dont' think putting one on under the seat by the carb would be easily done/changed. I also think the ESR one could fall off if you run radicaly much, so we really need one built just for our frame.

Discuss....

[OldSchoolin86]

I agree, I'm a huge fan of the outerwear. I got one on mine and love it.