Removing Air Suction Valve System: WHY???
#12
No, this basic design has been on Kawasakis at least since about 1979 before any introduction of a cat converter. I was working part time as a mechanic at a Kawasaki shop, and people would rejet their Kawasaki with this air injection system after installing an aftermarket pipe or muffler without disabling the system. The chromed pipes turned a dark blue for about 12" at the header pipe. Pretty ugly.
#13
*Miles Per Bucket
#14
No, this basic design has been on Kawasakis at least since about 1979 before any introduction of a cat converter. I was working part time as a mechanic at a Kawasaki shop, and people would rejet their Kawasaki with this air injection system after installing an aftermarket pipe or muffler without disabling the system. The chromed pipes turned a dark blue for about 12" at the header pipe. Pretty ugly.
#15
The point I was trying to make, is that if heat from running lean doesn't help exhaust gas escape faster (regardless of the power the engine makes), the smog system won't make a difference either regardless of hotter temperatures. Without header wrap (or preferably a high temp coating) the benefit of hotter exhaust gasses is nil.
The only reason to remove pollution stuff that makes remote sense is the slight weight loss and the elimination of some stuff in the engine area under the fuel tank. There is no performance gain otherwise.
I was going to remove mine, but then when it came down to it, it was easier to just plug everything back in. As for weight - maybe I skip a few second helpings and save more.
Last edited by klx678; 07-31-2014 at 09:42 PM.
#16
No, this basic design has been on Kawasakis at least since about 1979 before any introduction of a cat converter. I was working part time as a mechanic at a Kawasaki shop, and people would rejet their Kawasaki with this air injection system after installing an aftermarket pipe or muffler without disabling the system. The chromed pipes turned a dark blue for about 12" at the header pipe. Pretty ugly.
#18
Lean jetting will do it too. Both run hot. Letting the bike sit and idle for long periods will cause bluing of chrome and discoloration of stainless too.
I will say ceramic coating doesn't discolor. May lose gloss, but stays in color.
I will say ceramic coating doesn't discolor. May lose gloss, but stays in color.
#19
My smog stuff is still on. It doesn't hurt anything and there is no performance to be gained by removing it. Heck, if the OEM muffler wasn't such a restriction and was louder, I wouldn't mind it being a cat converter either. I'm not a tree hugger but unless I get something for it, I don't see the benefit of making things pollute more.
Oh and I ride in shorts all the time. Ride hard even. That dang header pipe is hot so don't touch it. If you don't touch it then it's fine.
Oh and I ride in shorts all the time. Ride hard even. That dang header pipe is hot so don't touch it. If you don't touch it then it's fine.