Any write ups for these? keep seeing them in peoples signatures on here but have yet to find a thread describing how to do them.

 

Smog removal is only for CA bikes I believe. Carb' slide is only for AUS and NZ bikes I believe and the Vortex throttle is 'plug and play.'

 

I did a simple search using the function at the top of the page and found several threads on smog removal.

Here's just one:


https://www.kawasakiforums.com/forum...ompleted-8886/

And West Oz, our 49 state bikes (well, my 09) do have some smog stuff, but nothing big.

A little cover on the front of the cylinder and a couple of hoses from the tank with some hoses running to the carb and such. Not difficult to remove and Bill Blue sells a 10.00 plate to replace the stocker.

 

Is that plate that Bill Blue sells 100% necessary doing the smog removal mods? Just wondering because I am doing all of my carb and engine work this weekend and would like to get that out of the way as well.

 

Cool, thanks OZ. I suppose the Vortex Throttle helps throttle response a little bit? I wonder it it's worth if.

 

Here is a quick explanation of these items

Smog removal - On the 49 state bikes, this means getting rid of the little air injection pump that sits on top of your valve cover. All it does is pumps air into your exhaust to help dilute pollutants so it can meet emissions. To remove it is to simply plug a few vacuum lines. You don't have to have the block off plate, but it is much easier with it. Also, bill blue included one in his big bore kit. This mod doesn't add any power or anything, it just cleans up the top of the engine a little bit.

Crankcase breather - If you look at the bottom of your air box, you will see a breather hose going from the top of the crankcase to the airbox. This has a factory restriction in it so you don't release excess crankcase fumes into the air. You can drill out the restriction or cap the air box and run a separate line and filter. Some say this helps the engine rev easier, but if you tip your bike over, can lead to oil all over the place. Doesn't add any power either.

Carb slide - When you get your jet kit, one of the steps it so drill the slide. This is the black piece that moves in your carb. It is just a vacuum hole that you drill out a little bigger. It is supposed to improve throttle response.

Vortex throttle - this is an aftermarket throttle tube that changes your throttle to a 1/4 turn throttle. Not very good mod for street use. Recommend only for off road and going ***** out all the time.

Hope this helps.

 

I don't think so. I like the longer throw of the OE throttle for modulation. It's a personal thing. If wanted, I can sure snap the throttle wide open in a heartbeat. It's not a mod for me although others love it.

My bad on the carb' slide and smog plumbing. It's been so long since I did it, I completely forgot about the slide breather mod, and confused the issue with the AUS/NZ slide mods. As for the smog plumbing, it seems all you Sepos get choked.

 

The smog removal is cosmetic, and will result in cooler exhaust temps but no real world performance improvment and as far as drilling your carb slide the dyno jet kit comes with a weaker spring that makes this unnecessary.

 

The Vortex throttle is a relatively easy swap onto the '06-'07 bikes. I believe there are some throttle cable issues to resolve.

I put a Vortex throttle on my '09. For those that have the '09-'10 models: it is not plug and play on these bikes. Because the right hand switchgear is integrated into the throttle housing, it is necessary to replace the switchgear with some alternative. I detailed what I did in another post here. There are other ways to do it too. However, once the switchgear is addressed, you still need to address the throttle cables - not a major task, but depending on how you go about it, it might take some very minor fabrication. What I did is also in that other post. I think the cable issues to deal with on the '06-'07 bikes are very similar.

Was it worth it? For me yes, but I had a number of reasons to go in this direction (detailed in that other post, so I won't regurgitate them here). In truth, I don't notice it when riding...which is good. It just works for me - though it might not work for someone else. It is important to note that the actual throttle travel with the vortex with the stock carb is much less than 1/4 turn; more like 1/5 turn (though I have not measured it). It's something like half the travel of the original, and it takes probably twice the effort to turn. If either of those would be a negative for you, you probably won't like it.

The relatively more abrupt opening of the carb with the vortex throttle (especially the initial carb opening) may be a detriment for some people and/or conditions.

 

I remember hearing about a mod that would help with cold starting, was that the slider drill out?