I just got an '08 filter element cap for my '06 ZX-14, it appears to be the same identical plastic piece that warps when it get's hot, looks identical. I thought I heard you guys say they upgraded to an aluminum part that seals better?

10...that's the 2010 prt # 11065...NOT 11055 Shoulda asked.....I'm yer 'parts guy' I KNOW...I bought one for my 07!LOL!!

* Last updated by: Grn14 on 5/17/2012 @ 9:08 PM *

Dang, I guess I heard wrong. Well that's OK, I have the Cycle Logic billet aluminum cap on there that 1Bad recommended for the turbo conversion. It's hell for stout but uses an o-ring instead of foam rubber seal. Great idea but the top of the airbox is not flat and the o-ring doesn't seal properly. I'm going to glue a piece of 3/8" thick foam rubber to it for a good seal, the new plastic one will make a good paint stirring stick.....lol!

* Last updated by: Kruz on 5/17/2012 @ 10:06 PM *

"top of the airbox is not flat"....okay...what's up Kruzerman?The sealing area surface is.....oh,nevermind.3/8ths rubber it is!LOL!How bout mountin that metal dohicky OVER the plastic factory one?That outta keep er flat,????????No gluing required!Ditch the o-ring thingy.Problemo solved!

* Last updated by: Grn14 on 5/17/2012 @ 10:31 PM *

Kinda like wearing belt and suspenders to hold your britches up .... Lol! Nah, that's overkill, besides I have a bunch of left over pieces of that adhesive backed cowling foam. When I had that tipover accident in the garage a year ago I ordered too many of them foam pieces, that stuff is mucho sticky and very tough foam rubber, should work perfect.

Btw, the frame on my '06 has a very heavy pebbly grain to the metal in the airbox area where that filter slides in and there are TIG welds in the vicinity that warps the aluminum. The oring on that Cycle Logic billet cap is very thin and there is not enough meat there to get a good seal against the airbox IMHO. I went ahead and used the Cycle Logic cap but sealed it with duct tape to prevent unfiltered air from bypassing around the end of the filter. Kind of a PITA since that billet cap set me back $37 with shipping.....ouchkabibble!

Lol... ouchkabibble! Where did you find that?

here you go

the link conneaut14 posted right above this looks just like my 2008 air filter element cover. It is maybe a bit more than 1/8" thick. Very ridgid and has a foam edge on the inside to seal against the airbox.

here is the airbox surface it seals to on my 08.

the 2010 air filter cover is the best of both worlds. It is thin metal with a few ribs stamped in it to make it ridgid + it has foam backing to seal against the airbox. Lightweight and ridgid.

I have the same cover as Rook on my 2008!

My '07 has a metal cover. Just had it off to clean the filter a week ago.

There was a stamped one on ebay today like $5

here it is

Man that is cheap! What is that ridge that runs down the cap for? I noticed the new cap I bought has that ridge and the foam is cutaway on the underside. It's been about two years since I last changed filters so I 've forgotten what was under there, I think there is a plastic tab on the outboard left side of the filter so you have something to grab hold of when pulling the filter out.

Grn, you see that weld right by the filter slot? Mine is heat warped right there from the factory. A straight edge laid across the sealing surface shows maybe 1/8" waviness, that O-ring on the billet cap never stood a chance of sealing. I cut out a slab of that 3/8" thick Kawasaki cowl foam tonight to fit. That should do the trick. Maybe I'm the only '06 that got the heat warp...IDK?
Also, look very close at the texture of the sealing area, that section appears to be cast aluminum, kind of a pebble finish, the o-ring couldn't handle that either. I called Cycle Logic and told the owner it was no good...I'm not kidding!

* Last updated by: Kruz on 5/18/2012 @ 9:40 PM *

I ended up using duct tape last time to prevent crud from getting I'n. Really crap design if you ask me....well, the design is probably OK but the execution left a lot to be desired...on my bike anyway.

That's very odd...warping like that.The airbox right there is cast.Maybe the guy(s) forgot to sand that area down some to get er flat?IDK...I'm sure they inspect those parts and stuff before they assemble em?Toss anything that isn't quite right?Well...sounds like ya got er going on there sealing up okay They've got so many of these parts goin through their assembly lines...bound to have one slip through occasionally...at least the welds are okayLOL!!!!!!

* Last updated by: Grn14 on 5/18/2012 @ 9:38 PM *

By the picture posted above, looks like the cover is not meant rest directly against the airbox. The screw holes are raised. I think the foam does all the sealing regardless of the flatness of the surface.

Good eye Laddie!Never noticed that....

There's a big azz bike show happenin today...right across the street....I gotta WORK! Thought it would be kinda fun and nice to show them Harley guys just what they're missin...oh well...guess I'll have to stick to flamin em on the highway!!! I KNOW mine would be the ONLY 14R here.Guess I'll have to pose another day

* Last updated by: Grn14 on 5/19/2012 @ 12:06 PM *

has anyone ever seen dirt / sand on the inside of ther air filter cover? Here is the inside of Kruz'. Note the lower right corner. That would be the inside, lower, rear corner when installed on the bike. There seems to be a buildup of dirt in that corner.

* Last updated by: Rook on 5/19/2012 @ 5:22 PM *

Looks perfectly harmless to me, buddy. Compare to pics of my filter element and cover. The OEM cover has the same shape as the Cyclogic. That sharp clean area on the inside of the back of tyou cover corresponds to the foam on the outside, back of the filter element. The dirt seems to follow the shape of the plastic outer face of the filter edge. You see, it has a wide band on the top and a narrow below. They are separated by a thin depression that goes all the way across----looks like two halves sandwiched together.

I think there is a lot of pressure at the back of the filter element because that is the end of the free flow zone. THE FILTER is blocking the way and much of the intake flow pushes up the farthest reaches then just swirls around until it gets sucked in and pushed through by the air coming up behind it.

I think you're fine. If the bike runs good, don't worry. Just do a compression test when you check valve clearance or change plugs next time.

Yay or Nay?

Rook, thanks for posting my pics, those were fromy iPhone and I had no way to post them. It looks to me like a lot of crud got around those filter cap o-rings. You are correct, we are looking at the inside of the cap so the lower left corner would be the lower rear corner with the cap installed. It's hard to see I'n the pic but the o-ring was flattened, compression set, on the bottom but not I'n the middle like it wasn't sealing. That area inside the o-ring on the Cycle Logic cap should be surgically
clean, it wasn't. Sand and grit was at the lower rear side of that cap, some had to make it's way into the motor, how much, I don't know. As I said this is a terrible design and worse than the stock plastic cap which let a lot of dirt around the end of the filter. How much damage has been done, again I don't know howuch got into my motor but that was on there for 6000 miles. I
Am using some oil, about 1/2 quart in 1300 miles. Some of that is leaking past my rocker cover gasket. There is nothing I can do about it now but ride it and see. I fixed the problem today and should have mo more leaks but the damage is done.

Btw, that brown stuff is axle grease, I applied a thick film of it to the O-ring to try and get a better seal. It looks like all of the dirt penetration was down at the bottom. Some obviously got trapped by the grease and didn't make it's way around to the back side of the filter and into the airbox.

I sure hope I didn't damage my motor.