KTM 250 SX Carb Swap

JBernard_401
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JBernard_401 6/3/2014 12:50pm
6/3/2014 12:50pm
seth505 wrote:
Thanks, haha I feel stupid...I actually checked motosport but just looked under 2014 and it said 'not available' for the carb. Didn't even think to check...
Thanks, haha I feel stupid...I actually checked motosport but just looked under 2014 and it said 'not available' for the carb. Didn't even think to check the previous year.
cheaper here:

http://www.ktmpartshouse.com/fiche_section_detail.asp?section=2242969&c…
seth505
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seth505 6/3/2014 1:37pm
6/3/2014 1:37pm
seth505 wrote:
Thanks, haha I feel stupid...I actually checked motosport but just looked under 2014 and it said 'not available' for the carb. Didn't even think to check...
Thanks, haha I feel stupid...I actually checked motosport but just looked under 2014 and it said 'not available' for the carb. Didn't even think to check the previous year.
JBernard_401 wrote:
cheaper here:

http://www.ktmpartshouse.com/fiche_section_detail.asp?section=2242969&c…
rad. thanks
Digger29
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Digger29 6/3/2014 3:09pm
6/3/2014 3:09pm
Hal_396 wrote:
2013 125 SX Carb


I'll see about the VForce next. Did you try it with the stock Posion Rad valve?
I didn't ride either of them but my two 2 buddy's that have the 14 250SX and the TC250 both rode their bikes stock and they both thought that their bikes weren't nearly as good as the 13 model with the Vforce on it. I rode the TC250 a cpl of Monday's ago at MX207 in ME and the bike flat out ripped. Very impressed.
Hal_396
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Hal_396 6/12/2014 2:39am
6/12/2014 2:39am
Well I received some bad news yesterday:

Dear MotoSport Customer,
Order Number xxxxxxxx

This email is to inform you that item CARBUR. KEIHIN PWK 38S AG | 09, 50331101544 is on backorder with no ETA. At this time, no dealer or vendor can source this item as it is on a nation-wide backorder. Please contact us and one of our agents can discuss further options or keep it on order, swap it out if possible, or perhaps cancel it off of the order. We do apologize for the delay as it is beyond our control.
Thank you for your understanding in this matter.
If you have any additional questions or concerns, please don’t hesitate to contact us – we’re available via email or phone Monday through Friday 7 a.m. to 7 p.m. PT, and Saturdays 7 a.m. to 4:30 p.m. PT.
Thanks,
Brad
Gearhead

The Shop

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Digger29
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Digger29 6/12/2014 6:13am
6/12/2014 6:13am
Try ebay and it really doesn't have to be 125/150SX carb it could be any 38mm Keihin air stryker. I initially tried a 38mm from a 08 YZ250 just to see if the mod was worth while. The body was much larger than the stock carb and I really had to wedge it in there. The carb from the 13/14 125/150SX has the same body size as the stock 36 on our 250SX's so it fits in without any trouble or any mods to the airboot.
Hal_396
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Hal_396 6/20/2014 2:33pm
6/20/2014 2:33pm
Good news! I ordered one from KTMpartshouse.com. The price listed in the link above is wrong as they charged me over $400 for the carb.

I find it strange that Motosport could not locate one but these guys had it in there facility the very next day. I hate paying inflated prices.
JBernard_401
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JBernard_401 6/20/2014 4:59pm
6/20/2014 4:59pm
what do you mean the price is wrong? NONE of them should be 400$. thats a freakin joke.
Mr Bean
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Mr Bean 6/20/2014 5:02pm
6/20/2014 5:02pm
Hal_396 wrote:
Good news! I ordered one from KTMpartshouse.com. The price listed in the link above is wrong as they charged me over $400 for the carb. I...
Good news! I ordered one from KTMpartshouse.com. The price listed in the link above is wrong as they charged me over $400 for the carb.

I find it strange that Motosport could not locate one but these guys had it in there facility the very next day. I hate paying inflated prices.
Did you inquire as to why they charged over $400 versus the $284.73 shown on the fiche? Heck, it even shows $284.73 as the price when I put it in my cart online.

If it was me, I'd ask why and ask to be refunded the difference.

There are a number of KTM parts sources that have that carb listed at that price.
Hal_396
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Hal_396 6/20/2014 5:31pm
6/20/2014 5:31pm
I did call and the parts guy, Clinton, said he was going to talk to his manager about refunding some of the monies. They even charged sales tax on my out of state order.
JBernard_401
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JBernard_401 6/20/2014 5:48pm
6/20/2014 5:48pm
ive been trying to get one from Hailey in parts for the last week, was supposed to get to them this week. never mentioned anything about it not being what was listed on their site either.
i'd be pissed if i were charged that much, might as well order it from someone else, everywhere else they are about 30$ more. but 400$ is ludicrous.
Hal_396
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Hal_396 6/24/2014 2:50pm
6/24/2014 2:50pm
Well they refunded me the difference. Shouldn't of had to do it the hard way. In the future I will just use the web site and not call them on the phone. BTW, the carb should be showing up tonight via UPS.
JBernard_401
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JBernard_401 6/24/2014 5:35pm
6/24/2014 5:35pm
just got mine in today. thats weird they didnt give you any 'discount' via phone, shouldnt make a difference. should have ended up being 280 right?
Hal_396
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Hal_396 6/25/2014 2:32am
6/25/2014 2:32am
Right around $308 with shipping. The stated price was $284.73. Now to get that thing installed..................
Mr Bean
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Mr Bean 6/25/2014 6:05am
6/25/2014 6:05am
Hal_396 wrote:
Right around $308 with shipping. The stated price was $284.73. Now to get that thing installed..................
Still confused.

Their website says "Free shipping on orders over $150 (restrictions apply)". The restrictions are usually oversized items like body panels or really heavy items. I can't imagine a carb being in that category.

Any explanation from them as to why no free shipping, or was this more of their same attention to detail like when you first ordered it?
Hal_396
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Hal_396 6/26/2014 3:13am
6/26/2014 3:13am
He told me when I first called that there would be a shipping charge. I think it was because it was a "special order" item.
Mr Bean
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Mr Bean 6/26/2014 1:02pm
6/26/2014 1:02pm
Thanks for the info - I'll keep it mind if i ever need to order from them because $20+ to ship a carb seems a bit much, even with today's rates.
JBernard_401
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JBernard_401 6/26/2014 6:04pm
6/26/2014 6:04pm
i talked to Haley in parts and got it for 280 shipped to me. something definitely off on your end.

Pit Row

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Hal_396
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Hal_396 6/27/2014 2:20am
6/27/2014 2:20am
Well installed the new carb and took the bike out last night. It really makes a difference. It starts easy, idles smooth as silk and pulls harder throughout the power band. It seems to have a little less bottom end but nothing drastic.

Thanks Digger for sharing this info.
Skali
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Skali 8/10/2014 1:25pm
8/10/2014 1:25pm
Hello,
I will use Keihin 38 in my EXC 300. What do you think - what do I need to use - need needle, idling jet and main jet?
Greats from Poland Smile
Hal_396
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Hal_396 8/10/2014 1:48pm
8/10/2014 1:48pm
I think you be good to start with the jetting mentioned above. No reason why it wouldn't work on your EXC 300.
97nismo
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97nismo 10/3/2014 2:13pm
10/3/2014 2:13pm
I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong instead of flattening out.

Only reason I decided to post in here was to say that with my research, I suggest ordering a carb from a 2012 150SX. Not only are they the same carb minus some jetting but the 150s are cheaper for some reason. I suggest the 2012 because it comes with a 6.5 slide so you don't have to swap slides out of the 36mm carb.

Just for reference my jetting is a 45 pilot, NECJ (3rd clip), 182 main, air screw is 1 3/4 turns out. I run Renegade P95 race fuel with Maxima Formula K2 mixed at 32:1. Bike runs crisp, plug looks good, and no spooge.
Hal_396
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Hal_396 10/3/2014 2:43pm
10/3/2014 2:43pm
Thanks for the heads up 97nismo.
Digger29
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Digger29 10/4/2014 6:36am
10/4/2014 6:36am
97nismo wrote:
I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong...
I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong instead of flattening out.

Only reason I decided to post in here was to say that with my research, I suggest ordering a carb from a 2012 150SX. Not only are they the same carb minus some jetting but the 150s are cheaper for some reason. I suggest the 2012 because it comes with a 6.5 slide so you don't have to swap slides out of the 36mm carb.

Just for reference my jetting is a 45 pilot, NECJ (3rd clip), 182 main, air screw is 1 3/4 turns out. I run Renegade P95 race fuel with Maxima Formula K2 mixed at 32:1. Bike runs crisp, plug looks good, and no spooge.
That's great to know. Thanks for the info. My Sunoco guy is thinking about getting out of the fuel business and I'd love to try some Renegade 2 stroke race fuel. Where are you getting yours from?
97nismo
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97nismo 10/5/2014 6:37pm
10/5/2014 6:37pm
97nismo wrote:
I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong...
I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong instead of flattening out.

Only reason I decided to post in here was to say that with my research, I suggest ordering a carb from a 2012 150SX. Not only are they the same carb minus some jetting but the 150s are cheaper for some reason. I suggest the 2012 because it comes with a 6.5 slide so you don't have to swap slides out of the 36mm carb.

Just for reference my jetting is a 45 pilot, NECJ (3rd clip), 182 main, air screw is 1 3/4 turns out. I run Renegade P95 race fuel with Maxima Formula K2 mixed at 32:1. Bike runs crisp, plug looks good, and no spooge.
Digger29 wrote:
That's great to know. Thanks for the info. My Sunoco guy is thinking about getting out of the fuel business and I'd love to try some...
That's great to know. Thanks for the info. My Sunoco guy is thinking about getting out of the fuel business and I'd love to try some Renegade 2 stroke race fuel. Where are you getting yours from?
I get my fuel from a local dealership, CC Powersports in Louisville, KY. I've seen some online places to order it from. I have thought about trying the SX2 but my engine is stock internally and I it takes me a couple months to go through 5 gallons of fuel and I'm afraid that it will go bad before I get to use it all. I've been very happy with the P95 over 93 octane pump that I was using.
TF212
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TF212 10/6/2014 6:40am
10/6/2014 6:40am
I don't own a KTM, but I am curious as to why they chose to use a 36mm carb on the 250sx in place of a 38mm which seems to work so well, especially when they are already using the carb on smaller bikes?
malburg114
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malburg114 10/10/2014 2:24pm
10/10/2014 2:24pm
Okay been trying to sort out the jetting for the 38mm carb for a while now and just found this thread. The bike is a 2013 KTM 300 XC-W and the the carb is from Blais racing with the JD jetting kit in it. Right now, for 2500-5000 feet from 85-99 degrees we have the bike jetted with a 38 pilot, 165 main and I think the needle is the blue one on the third clip. Would running the Suzuki needle clean up the jetting a little more? How are you guys basing your jetting? I race in the 5000-7500 area and found a good setting for their but have yet to get a good setting for where I ride most the time.
Craig_Lambrecht 10/21/2014 9:40am
10/21/2014 9:40am
what fuel ratio are you guys running?

I'm at 2k ft. elevation.

I'm just trying to research as much as I can before I pick my new TC up here in a week or so.

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