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2009 CMX 250
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Discussion Starter · #1 ·
I have an 09 cmx250c9. The carb on it is in rather bad shape. I'm not knowledgeable enough to do a rebuild on it so I bout a dual carb set up thinking it would be a bolt on and go. Boy was I wrong. Anyway, could someone point me to a place I can get a rebuilt or new single carb that would be a direct replacement for the oem one on the bike please.
I will eventually rebuild the one i have now but id like to continue riding and also have a spare for whenever I inevitably mess up the rebuild.
I also need a replacement boot from the airbox to the carb but can not seem to find one anywhere.

On a side note id really like to install the dual carb but can not find any tutorials on how to do so, any information on that would be helpful to. Thanks for the help ahead of time.
 

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1987 CMX250C AC
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most independent local motorcycle shops should be able to rebuild your existing carb in less than a week..
Shopping for a shop look for one that has been around for years and has clean floors..
around me I can think of a Harley shop or even a VW specialist I'd check with if I wasn't confident to do the work myself than there are those dirt bike specialists..
 
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Discussion Starter · #3 ·
Thanks for the tip.
I don't mind learning, I just don't want to mess the one I have up without having another, that way I can continue riding. That or have the time to install the dual carb I bought for it.
In the long run doing it myself will be the best option in terms of money and knowledge. Regardless of me doing it or bringing it to a shop, I still need the rubber boot for the airbox to the carb and I can't seem to find those anywhere.
 

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Here's a complete airbox with tube on ebay: AIRBOX CLEANER STORAGE TOOL AIR 2000 HONDA REBEL CMX250C CMX250 00 | eBay

And here's just the brand new tube: 17253-KEN-670

You can order a new one from a Honda dealer, but it may cost more. You can also post that you want one in the Classified section of the forum and see if someone has one they'd sell.

Lots of folks new to wrenching on bikes have cleaned their carbs. Lots of info on how to do it, and folks willing to answer any questions you may have.
 
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Discussion Starter · #5 ·
THANKS! Big help right there. Definitely doing my research on how to do the carb properly. I'd really like to get that dual carb mounted though, But it needs modifications and not quite sure where the tubes and the other connections go. So i have to use the OEM one till I figure all of that out.
 

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You don't need any of those tubes
But let's look at the ones I would keep and what they do on stock equipment..
#6 is a multi-duty vent and drain hose.. Where it connects to left side of body just aft of choke valve is the float bowl vent (circled in purple below) and T's into bowl drain/overflow tube connected to bottom of float bowl which may or may not have an additional T connected to short piece of hose open to atmosphere.. #6 continues down below frame also open.. Should your float valve stick open this is the hose that pees gas.. It's also where gas dumps out when you open float bowl drain screw for long term storage..
Should you need to discard the use of Carbon Canister keep #1 fuel tank vent.. leave it connected to non-functioning canister or route it below frame with other hoses.. the fuel tank must be vented.

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#5 & #11 that connect to Purge Control Valve can be removed and capped as circled by red and Yellow in following image..

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I'll assume any aftermarket twin carb assembly will have a vent and drain nipples for float bowls which would/could/should be extended via hoses below frame as oem carb was designed..
 

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Soaked, that's a California model carb isn't it? Is that what DWisen has?
 

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only the Calif emission bikes would have additional hoses attached to the carb.
believe you will find carbon canisters on many more being phased in after the 1990 Clean Air Act thus complying with CA emission requirements.. 2nd image is off 2nd gen while 3rd image is off 1st generation Rebel

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Sorry, should have clarified the third image is what I was referring to. That steel nipple at the top isn't present on any of the second generation carbs I've seen with the possible exception of a California model that I cleaned a few years back.
 

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Short straight brass nipple on 2nd gen carb instead of longer curved steel on the 1st gen, hard to see in that second image though I circled it in red..

Doubt there is an equivalent on aftermarket dual carburetors.. I wanted to let DWisen know what hoses he could do without from those I'd consider important and why..

Carbon canister is a rather benign emission control, all it does is collect and hold gas fumes percolating out of hot gas tank until purged and drawn off through carb and burned..
 

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I've got a first generation non-CA carb in hand, and it doesn't have that steel nipple, just two brass ones. Also doesn't have the red doo-hickey circled in yellow.
 

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Discussion Starter · #13 ·
Thank everyone for your replies, I will post picture of the single car that I have an a little bit and also post pictures of the Dual carb that I am trying to set up. I have everything required for the Dual carb but it needs some modifications. I will post info when I get off of work at around 5. Thanks again for all the information so far.
 

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Discussion Starter · #14 ·
110187
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in the third picture where my thumb is, I have to shave some of the rubber here because the bolt wont fit all the way through. I also have to find a sleeve for the bolt lower because its too long and isn't threaded all the way down for the bolt to thread snug against is.
The last picture is what I'm kind of confused about with all the hoses.
The bottom two I'm fairly certain I know where they go and that's to a little Y adapter near the bottom of the frame. Not sure what the one in the middle top is for at all. And I assume the nipple on the left is where the fuel line goes.

Oh, I forgot to get a picture of it but in the 2nd picture you can kind of see, I think that's where the choke gets attached to but its weird.
As for the throttle cables, they're too long and have WAY too much slack and i will have to find a way to shorten them to fit properly.
 

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Discussion Starter · #15 ·
Oh, and the OEM carb is non CA single carb model. I know how to install that one, It's the one that needs to be rebuilt and THAT is what I am afraid of doing. I'd like to have a 2nd OEM single carb on the bike untill I can figure out how to rebuild the one on there now or I figure out how to install the dual carb properly.
 

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Float bowl drain hoses and bowl vent should extend below frame
what I see is what I would expect to find on any oem or aftermarket carb without emission control..
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@flitecontrol @Blue-Grass-Tornado posted a comparison showing bottom of two 2nd gen carbs..

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The red doo-hickey circled in yellow is a plug and red ziptie sealing off PCV vacuum port nipple

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I've got a 2001 bike in the barn. Will check the carb the next time I'm out there.
 

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Discussion Starter · #19 ·
SoakedKarma, The one I have would be the one to the right in the picture you posted, the one without that extra bit that's circled.
That's the one needing a rebuild and the one id like to find another one of.
 

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any of the 2nd generation 96-2016 carburetors would work on your bike..
You would only need to cap/plug the extra emission control nipples if carb has them..

Since at least 1980 all motor vehicles including 50cc and larger motorcycles were required to have EPA emission control label..
non-california vehicle labels state they conform to USEPA regulations for specific model year built..
this information label is found on air cleaner cover unless it has been removed..

My 87 california emission label also indicates vacuum hose routing

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