NOT what you want in your carb

baz666 · April 7th, 2014, 06:32 AM

As I'd posted earlier, I was wondering why my 2000 EX250 would not start or run without choke. I figured since the bike sat for a long time before I bought it just after xmas, the carbs needed to be cleaned. So I removed the carbs, took off the tops to check the internals and much to my surprise, here's what I found in the left side carb (as you're seated on the bike). Amazing the bike ran at all.
Now, it might be possible but I can't imagine this damage would happen in regular use of the bike. The diaphram is chewed up along the edge and torn right through in a couple places. Some 'person' did this then put it back in the carb and put the carbs back in the bike. Who would do that?
The previous owner sold it because: "I just couldn't get it to run right."
Ya think?
So I'm doing a full carb rebuild since anyone who would put this diaphram back in a carb in capable of anything. I'll keep you posted on what other infamy I come across.
https://www.flickr.com/photos/69874352@N00/13692906455/

csmith12 · April 7th, 2014, 06:40 AM

flitecontrol · April 7th, 2014, 07:16 AM

Some people ought to be bull whipped. They might learn not to do such stupid things, and thereby protect the unsuspecting.

Hopefully, that's all the surprises you'll find!

kxpower? · April 7th, 2014, 07:36 AM

That sucks dude. That's a $110 part on mrcycles ouch! Hopefully someone around here knows a better source.

rojoracing53 · April 7th, 2014, 08:10 AM

that's what happens when you try and run nitrous

Sucks because that part is so expensive you can probably find full carbs used for cheaper, but then you'll be wondering if they are any good.

baz666 · April 7th, 2014, 01:02 PM

I saw the diaphragm on ebay for $34. Can the diaphragm be removed from the slider? Doesnt seem possible on this one without tearing diaphragm.
Is there some method that's not apparent?

j98sprint · April 7th, 2014, 05:36 PM

Not that I'm aware of. The bike will not run right with that torn. You're best bet is to buy a used set of carbs off eBay.

j98sprint

dcj13 · April 7th, 2014, 06:28 PM

So what's the deal with the high-priced diaphragms?

My 39 year old defunct british sports car has a pair of constant velocity (CV) side draft carbs. I can buy a diaphragm for it for less than USD $10. What gives with the Kwak diaphragms? Are they "special", somehow?

agentbad · April 8th, 2014, 01:18 PM

You could just buy one side of the carb and Frankenstein it back together or just buy a whole set so you have extra parts. Ebay is full of used carbs and carb parts.

Saw this:

http://www.ebay.com/itm/KAWASAKI-EX2...126725&vxp=mtr

CZroe · May 27th, 2014, 04:56 PM

I know at least one user put new rubber on his existing slider. Was it you, @cuong-nutz?

Edit: Found the thread.

April 7th, 2014, 06:32 AM	#1
baz666 ninjette.org member Name: Baz Location: Takoma Park, MD Join Date: Jan 2014 Motorcycle(s): 2000 EX250 Ninja Posts: 59	NOT what you want in your carb As I'd posted earlier, I was wondering why my 2000 EX250 would not start or run without choke. I figured since the bike sat for a long time before I bought it just after xmas, the carbs needed to be cleaned. So I removed the carbs, took off the tops to check the internals and much to my surprise, here's what I found in the left side carb (as you're seated on the bike). Amazing the bike ran at all. Now, it might be possible but I can't imagine this damage would happen in regular use of the bike. The diaphram is chewed up along the edge and torn right through in a couple places. Some 'person' did this then put it back in the carb and put the carbs back in the bike. Who would do that? The previous owner sold it because: "I just couldn't get it to run right." Ya think? So I'm doing a full carb rebuild since anyone who would put this diaphram back in a carb in capable of anything. I'll keep you posted on what other infamy I come across. https://www.flickr.com/photos/69874352@N00/13692906455/

April 7th, 2014, 06:40 AM	#2
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	__________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

April 7th, 2014, 07:36 AM	#4
kxpower? ninjette.org guru Name: Jesse Location: Maryville, TN Join Date: Nov 2012 Motorcycle(s): Ugly 89 frankenstien special ex250, and the "Zooks" : 1982 GS450 and 1979 GS1000 Posts: 327	That sucks dude. That's a $110 part on mrcycles ouch! Hopefully someone around here knows a better source. __________________________________________________ Oh god the bikes are multiplying!!!

April 7th, 2014, 06:28 PM	#8
dcj13 Participant Name: Dave Location: South of Seattle Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much. MOTM - Aug '15	So what's the deal with the high-priced diaphragms? My 39 year old defunct british sports car has a pair of constant velocity (CV) side draft carbs. I can buy a diaphragm for it for less than USD $10. What gives with the Kwak diaphragms? Are they "special", somehow?
	1 out of 1 members found this post helpful.

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April 7th, 2014, 07:16 AM	#3
flitecontrol ninjette.org guru Name: Lee Location: Monroe, LA Join Date: Feb 2014 Motorcycle(s): Rebel 250s, Ninja 250s VN750s (currently nine total) Posts: 465	Some people ought to be bull whipped. They might learn not to do such stupid things, and thereby protect the unsuspecting. Hopefully, that's all the surprises you'll find!

April 7th, 2014, 08:10 AM	#5
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	that's what happens when you try and run nitrous Sucks because that part is so expensive you can probably find full carbs used for cheaper, but then you'll be wondering if they are any good.

April 7th, 2014, 01:02 PM	#6
baz666 ninjette.org member Name: Baz Location: Takoma Park, MD Join Date: Jan 2014 Motorcycle(s): 2000 EX250 Ninja Posts: 59	I saw the diaphragm on ebay for $34. Can the diaphragm be removed from the slider? Doesnt seem possible on this one without tearing diaphragm. Is there some method that's not apparent?

April 7th, 2014, 05:36 PM	#7
j98sprint ninjette.org member Name: John Location: Crossville, Tn. Join Date: Oct 2010 Motorcycle(s): '02 Ninja 250, '98 Triumph Sprint 900, '69 H-D Sportster XLCH 900 Posts: 80	Not that I'm aware of. The bike will not run right with that torn. You're best bet is to buy a used set of carbs off eBay. j98sprint

April 8th, 2014, 01:18 PM	#9
agentbad ninjette.org sage Name: bob Location: Earf Join Date: Apr 2013 Motorcycle(s): 2005 Ninja 250, 2006 SV650N Posts: 642	You could just buy one side of the carb and Frankenstein it back together or just buy a whole set so you have extra parts. Ebay is full of used carbs and carb parts. Saw this: http://www.ebay.com/itm/KAWASAKI-EX2...126725&vxp=mtr

May 27th, 2014, 04:56 PM	#10
CZroe CPT Falcon Name: J.Emmett Turner Location: Newnan, GA Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.	I know at least one user put new rubber on his existing slider. Was it you, @cuong-nutz? Edit: Found the thread.