Hey, I've a '87 LT230S Quad Sport on which I've just installed a 260 Big Bore kit, a Hot Cam, DG Chrome Power Exhaust, and a UNI airfilter. I needed a bigger carb as it was running too lean and I wanted the power. I just bought a Mikuni Carb from LA Sleeve (after describing to them my modifications so it would be jetted correctly) and it won't fit on the intake boot. Any suggestions? I believe it is a 34 MM.

 

Sorry, I can't help on the Carb issue, except for saying you might have luck asking in the LT230S thread on here that's like 220 pages long. I want to ask you though, how do you like the DG Chrome Power Pipe? How does it sound? Can you tell what it is? Is it just a fancy chrome version of the other RCM pipes?

 

Thanks for the suggestion about using the LT230S thread.
I like this exhaust far better than allot of the other choices that I had. It sounds nice and deep and is especially nice in the higher RPM's. This exhaust is chrome plated steel, but it doesn't have a spark arrestor...which sucks.

 

none of the ones I've found available for these wheelers have them, which does suck because you need them to be legal here in MN. I'll end up making one for mine.

 

<div class="FTQUOTE"><begin quote>Originally posted by: Guppy121

Hey, I've a '87 LT230S Quad Sport on which I've just installed a 260 Big Bore kit, a Hot Cam, DG Chrome Power Exhaust, and a UNI airfilter. I needed a bigger carb as it was running too lean and I wanted the power. I just bought a Mikuni Carb from LA Sleeve (after describing to them my modifications so it would be jetted correctly) and it won't fit on the intake boot. Any suggestions? I believe it is a 34 MM.</end quote></div>

Whoa... 34mm!?!? [img]i/expressions/face-icon-small-shocked.gif[/img] No way. Are you sure its a 34??? If it is, put it on ebay or RMA it back to sender. I'm sorry, but there is no way a 34mm carb is optimal for such a small engine. You might be able to get it to run, but it will be FAR from the best that engine can do.

I had a 32mm on mine for a while with a KN filter as big as a 2-liter bottle and I couldn't get it tuned to run past 1/2 throttle after weeks worth of tinkering. I put the flatslide 28mm on and it revs out much better. You may get a flatslide 32 to work well enough since you have a 260 kit (probably not a roundslide 32 though), but currently I'm leaning towards 28-30mm being the best carb sizes for these engines.

If you want performance that is very close to being the best it can be and you don't want a lot of headaches, just get the TM28 Mikuni flatslide and be done. We already know the right jetting you'll need for it and everything will fit w/o having to go shopping for tubes n pipes.

The stock carb size is 26mm. Whitebrothers used to sell a 27mm. Lots of guys have went with the 28mm. And Sudco recommended a 32mm with a big bore kit for a friend of mine, but I've never heard of anyone recommending a 34mm. The guy on youtube out running 240cc blasters with a 230 turbo is only running a stock 26mm carb! That's says a lot right there!

btw, I think 34mm was stock for a 350 warrior. We put a 38mm on the warrior with a KN and FMF pipe. It about doubled the HP, but we still haven't gotten the bugs worked out of the carb.

 

Oh yeah, I didn't catch it until after I posted, but it is a 30 mm roundslide, not a 34. Forum posting would pay off better, if I'd pay attention when typing.

But my question is that it won't fit my intake boot, do you have any suggestions? Thanks.

 

Yes, get the intake boot for a Kawasaki Lakota. That's what I did for my 32, which is the same carb body as the 30.

Other than that, you'd have to order an aftermarket boot that fit your new carb and the bolt pattern of the 230 head.

I like the Lakota one better because it has a metal insert instead of being only rubber. Don't forget to order the o-ring too.

How you'll get that giant backside of the 30 to fit the stock air box tube, I have no idea.

This is what I ended up with:



Here is the Lakota part you need:



As you can see, it has metal inside so you can make it smooth with the carb.... at least the 32mm one you could.

 

Thanks for the feedback and the pics. I was looking at performance intake boots the other day and I noticed that none of them have bends in them, like the Kawasaki Lakota that you used. Had you ever come across a performance intake boot with a bend in it? I am thinking that a radiator hose would fit between the air intake box and the carburetor.

 

I went to autozome and couldn't find a radiator hose big enough to fit the back of the 32mm carb I have, so I ended up with the exhaust flex-pipe you see in the pic. The next step was to order some hose online, but I scrapped the 32mm and went back to the 28mm for the time being.

I've seen boots with bends in them before, not sure if they would fit the 230 or not, but they're out there. I haven't seen any with metal inside though. Sifting thru Sudco's catalog will turn up a few mikuni boots, but I wouldn't take them over a Lakota boot. If there is another company that makes them, I'm not aware of it.

One thing about the Lakota boot is since it has metal inside, you'll find the boot doesn't lock into the groove on the carb. So, you'll have to sand or file the end of the carb down short enough so it snaps into place in the boot. No big deal, just letting ya know. I used a belt sander and it took about 20 seconds.

The Lakota boot costs about 15 bucks from cheapcycleparts. Don't forget the oring.