Cat converter in the header pics?

[old3]

Anyone been in there yet? Looking for a good pic of what is going on for future fiddiling around...

[DaBlue1]

This cat is not out of a Ninja 250, but another Kawi. You can expect to see something very similar.

[alex.s]

There is none in the California oem pipes. I don't expect there to be one in any of them if cali models don't have them

[JBinSD]

I think its all the back in the muffler, not the pipe.

[alex.s]

http://www.2fiddy.com/2008/07/shortie-exhaust-homemade/

here is the "cat":

[old3]

Originally Posted by alex.s

http://www.2fiddy.com/2008/07/shortie-exhaust-homemade/

here is the "cat":

Kidding, right?

I though I read a second cat was in the area of the mid pipe? If it is only in the slip on, great! I've "seen" quite a few so know what they look like. I was expecting to need to cut & gut the mid to get a good look at one for the 300.

Far better if it isn't there to be "looked" at.

[loz944]

on the FI 250 there is 2 one as shown and another in the mid pipe

[Boom King]

You'd have to open up the muffler to know for sure. The pdf brochure from Kawasaki on the 300 states that the cat is only on the collector pipe and not in the silencer. The ambiguity is whether this is different for Euro vs. Cali vs. 49 state spec.

[old3]

Yeah, I have a feeling there is one in the collector too and that will require surgery to be seen.

I asked the Area P guy about it too, I'll follow up if I find anything else out.

[alex.s]

Originally Posted by old3

Kidding, right?

I though I read a second cat was in the area of the mid pipe? If it is only in the slip on, great! I've "seen" quite a few so know what they look like. I was expecting to need to cut & gut the mid to get a good look at one for the 300.

Far better if it isn't there to be "looked" at.

nope. kit tore hers open because i suggested there should be one in the mid pipe. nothing in the pipe. oem pipes are just kinda small. the middle piece is a pressed 2-1 so they dont have to cut the pipes and weld at a weird angle. cost saving technique. there is nothing inside the oem pipes. (not counting the muffler)

you can test this by sticking a snake down the headers. it comes out the other side. wouldn't happen if there was a cat.


edit: just realized this is 300s... not sure if its the same. probably different with efi.

[old3]

Originally Posted by kbryant
OEM Cat is in the new left side collector (Headpipe) - not in the muffler.


So, there it is, in the collector/header.

I thought you were stating that perforated tube was the cat buddy. I must have misunderstood ya!

[alex.s]

paging @cynicalkit from your experience in tearing open your exhaust... is there a cat in the oem headers?

here is the relevant info:

post #59
http://www.ninjette.org/forums/showt...header+exhaust

The waffle Shane found in the header was a resonance chamber, not a cat. A cat is a plenum element and looks like a honey comb and is made from platinum to absorb carbon monoxide. Although the waffle may slow the flow a little it is not a cat.

[old3]

Cats are a substrate that exist in honeycomb or even screen styles. I have screen style hi-po cats in my car exhausts.

Looks like the header will be coming apart!

[cynicalkit]

Correctomundo. I can take pics of my stock exhaust later. I cut open the header and there is nothing in there. Two cats in the slip and a resonance header in the exhaust. That is it.

[old3]

Originally Posted by cynicalkit

Correctomundo. I can take pics of my stock exhaust later. I cut open the header and there is nothing in there. Two cats in the slip and a resonance header in the exhaust. That is it.

Wait, is that a 300 exhaust? Sounds like two different findings here.

[cynicalkit]

This was on my 250. Not sure about the 300.

[old3]

Ah, OK, different animal there. I'll post up what I find unless someone gets one open first.

Thanks

[JBinSD]

Yeah, this is the 3-hunsky forum, doods/doodette, and b/c of the EFI the 300 only needs 1 cat, not 2 like the two-fiddy.

[alex.s]

Originally Posted by old3

Ah, OK, different animal there. I'll post up what I find unless someone gets one open first.

Thanks

you probably should stick a firm tube down the header before you cut anything open... if the tube goes through you can be sure there isn't a cat there.

[old3]

Found a pic

[old3]

And what it would look like if someone spent 5 minutes with a drill, a hammer and flat screwdriver.

[old3]

That is debris in the bottom pic where you should see the two header tubes. It is easily cleaned out and ready to weld back together from what I read.

No actual animals were injured in this series of pics.

Saw, drill, hammer, flat screwdriver and 10 minutes of time. Add a breakfast to bribe a welder buddy and track only headers ready to go. I'll have them back on the bike by tomorrow morning for weekend track testing.

[old3]

Test ride today after welding it back together. No noise increase over my Akra open Ti slip on, feels like it has a real hit off the bottom, pulls the forks to top out harder for sure. I can't feel any "jetting" problems, fuels just as well as stock. No popping on decel, maybe a slightly louder burble when you just touch the throttle on decel but no real difference there.


All good and it cost me a lunch for my buddy and under 30 minutes total wrench time.


Tuner time!!!

[rusninja]

lets see some pics!

[old3]

The relevant pics are posted above. The re-attached pipe looks just like stock with a bead of weld around it.

[rusninja]

I ment with slipon :S

[old3]

This is all I have handy.

[old3]