K&N filter that fits directly to carb?

[Dammit!]

Your never going to get one on the carb that will be worth it IMO, too small too tight for space.

Discuss....

Well I've seen it done before. The local racers used to do it all the time on their R's. Haven't seen one in ages though.

They were pretty small, cone shaped filters with an angled flange so they angled away from that piece of frame that's in the way.

(these aren't the right size but similar shape)





And yeah, I wouldn't even consider doing this without an outerwear sleeve on it.

[AZ250R]

I'd love to have this filter clamped onto an aloy tube that is securely bolted to the frame, in the place of that old style side rubber to air box.

I think it would work perfect, just need the tube fab'd up & I'd like someone who knows what their doing to make it. Maybe someday, seems more like I keep blow'n this idea off & shouldn't. I'm still run'n a stock airbox with foam filter. :o

[Dammit!]

I've been tempted to take the boot off and run the bike over to Richards ATV and just bring out all their small filters until I find one that works (if they'd let me). Thing is, if I bought one there I'd pay twice as much for it as I could get it online if I had the part number. I'd feel like a dick if I used their filters to find what I need then order it elsewhere. Rocky Mountain ATV typically has them in the $25 range.

[Dammit!]

Alright, I seriously think this one MIGHT just barely fit. It would be real close though.

http://www.knfilterchargers.com/sear...x?Prod=RC-1250



It's got the right size flange (2.25 inches/57mm) just past the flange it's 3.5 inches then it tapers down to only 2 inches wide. It's total length is 4 inches. Would be better if it were three. I'm not sure if the taper is going to be steep enough to clear the frame. These things are pliable though. If it's touching the frame it will just bend around it a little bit. Don't think it would have any affect on it's filtering ability.

[AZ250R]

These things are pliable though. If it's touching the frame it will just bend around it a little bit. Don't think it would have any affect on it's filtering ability.

Yah, I know... got one on my car & where it hit a frame peice it rubbed a small hole it in. :evil: Would be better to just bend it, or dent it before that happened.

Why aren't you into having the proper ducting fab'd up for the filter to fit where the old airbox is? Would be so easy to change the outerwears then too.

[Dammit!]

I want to be able to use the airbox as a little trunk.

I was just looking at it again, it would definitely hit the frame pretty good right there. I just e-mailed K&N to see if they have a shorter one.

The thing Lots of Nothing posted is probably "the best" way to go about doing it and it doesn't look difficult to do at all. I just can't get the image out of my head of a filter mounted directly to the carb. I like to keep things as simple as possible (plus I always thought it looked kinda cool).

Just investigating at this point. Might as well rule out the possibility of there being a carb that will work without anything else being needed before I start thinking about doing it any other way.

And as usual, that damn boot doesn't want to go back on now. I *hate* that thing. :evil:

[MTS]

spary some lube on the boot to put it back on..or some oil on the inside lip...makes it MUCH eaiser to manuver on..lol

[Dammit!]

I know. Doesn't help though. It gets pinched on the side that I can't reach. The way it fits in there it's really hard to wiggle it on. When they get old and stiff it just makes it that much more difficult.

When I put the thing back together after years of being broken down, that was the hardest part of the entire process if you can believe that. I was laughing and pissed off about it at the same time.

[monster 84r]

when i got my 84r the dual stage k&n with outerwears was mounted directly to the carb, and the airbox was removed. the lip of the filter fits over the carb intake mouth, with a hose clamp to keep the filter there. i can take pix if * guys wanna see

[Fox250R]

i need one of those

[faf_racing]

HA 2440 part #

[monster 84r]

the filter rubs up against the frame a little but i dont care. it looks pretty awesome

[Old 179]

ha-2440 part # is for the stock air box. (National catalog store's #701b) I have been looking in my pile of mags. @ cat. of 85 @ 86. they show them with hop up kits but no #

[Hornetpowerspor]

Just a warning from my experience...... I removed my airbox on my 86R and put a dinky little Filter off the carb. What I ran into, even after jetting, was the carb couldnt suck enough air at WOT (wide open throttle) and would miss excessively at high speeds. To make a long story short, I ended up building something like the ESR setup and buying another filter to fit that. It works great. Just my 02 cents.

[Dammit!]

Just a warning from my experience...... I removed my airbox on my 86R and put a dinky little Filter off the carb. What I ran into, even after jetting, was the carb couldnt suck enough air at WOT (wide open throttle) and would miss excessively at high speeds. To make a long story short, I ended up building something like the ESR setup and buying another filter to fit that. It works great. Just my 02 cents.

Was it a K&N? I've heard that with K&N's a couple times now. I'm running a Uni right off the carb with a sleave and I don't have that problem at all. Funny thing is, I've always preffered K&N's. I think they do an equal job of filtering out dirt but air flows through them more freely. I think that might actually be the problem in that configuration though. All that air rushing around inside the filter from the wind.

I actually have an ESR kit but I can't use it unless I cut off one of the airbox mounts which I'm not willing to do. Even then I'm not sure it would really fit well.