1998 Ninja 250 - Rebuilding Carb?

anabolicinsider · April 5th, 2012, 05:52 PM

hello everyone, just got the carb off. exhaust was blowing white smoke out the RIGHT exhaust pipe. upon examining the vacuum diaphragm's i noticed the right diaphragm was very warped, and the left one was perfect with no warping at all.. what is your opinion? and also, if it does have to be replaced,, what is your opinion on stuff on ebay or amazon,, because those are like 30 dollars instead of 100+ for the diaphragm! and does it 100% have to be from a ninja 250 88-07, or is this a pretty universal part from kawasakis? just curious

thanks in advance

anabolicinsider · April 6th, 2012, 07:50 AM

bump

csmith12 · April 6th, 2012, 07:59 AM

Looks like it not making a good seal on the right side near the edge. Prices for those things suck. It can be cheaper and easier to find a used carb setup. No clue on the ebay/amazon stuff.

anabolicinsider · April 6th, 2012, 08:06 AM

Prices do suck bad. 80-125 roughly.

anabolicinsider · April 6th, 2012, 07:50 PM

My buddy has a Carb from a 95 Kawasaki 650. Would the Carb or diaphragm fit from that?

anabolicinsider · April 6th, 2012, 09:28 PM

I mean 600

Trash Can Man · April 7th, 2012, 07:26 AM

That part probably won't fit, but you can cross-reference the files at Bike Bandit to find out. Have you tried searching for motorcycle salvage yards in your area for the part?

anabolicinsider · April 7th, 2012, 07:28 AM

Quote:

Originally Posted by Trash Can Man

That part probably won't fit, but you can cross-reference the files at Bike Bandit to find out. Have you tried searching for motorcycle salvage yards in your area for the part?

the closest salvage yard is slicks in mason MI,,, and they are crooks when it comes to part costs.. (close to retail new price for scrapped) and my buddy that sold me the bike told me that when he was looking at prices for the diaphragm that people on this board offered to sell him a cleaned carb off a working bike for literally almost the same price as the diaphragm.

anabolicinsider · April 7th, 2012, 07:31 AM

!!!! The part number on bikebandit is the same for both the 600 and the 250 !!!!

anabolicinsider · April 7th, 2012, 08:35 AM

i spoke too soon,, the REFERENCE number is the same,, not the part number.. still going to take apart buddies carb to see if it looks the same though.

Skippii · April 7th, 2012, 09:16 AM

White smoke in the exhaust usually means a bad head gasket or piston, not anything to do with a carb.
Posted via Mobile Device

anabolicinsider · April 7th, 2012, 09:22 AM

@skipp,,,, carb in general, upon opening it, does need to be cleaned as is sat for quite some time with gas in it. in regard to the asked question, is about the diaphragm, not the white smoke, if in deed that needs to be addressed at a later date then it will be. what is your opinion on the diaphragm as many new ones i see for sale have ripples in it and arent perfect like the one on the opposing carb?

anabolicinsider · April 7th, 2012, 09:25 AM

not really too worried about having to do a top end job on the engine. piston being roughly 40-50, head gasket being 15-20ish and ring set being 40ish. quite affordable

anabolicinsider · April 7th, 2012, 12:08 PM

anabolicinsider · April 7th, 2012, 12:08 PM

http://www.youtube.com/watch?v=J2VvqwuVzkg

this is the only time its been started while in my possession. there is a low idle knock if you listen closely enough, 1 cylinder not firing properly. ignition coil wire on the non-firing side is pretty chewed up. will fix that then see if the other cylinder kicks in. first though, we're cleaning the carbs so more gunk isn't getting pushed through.

anabolicinsider · April 8th, 2012, 02:50 PM

http://www.youtube.com/watch?v=tyuah...ens0Y8uBFlOoo=

Cleaned the carbs again instead of taking the previous owners word on it. They were quite nasty inside! Started first try now with choke on. And with warmer weather the rest of the day it even started without choke.

anabolicinsider · April 14th, 2012, 03:07 PM

Screwed up the carb

anabolicinsider · April 14th, 2012, 03:13 PM

The pilot air screw tip was stuck in the hole and I didn't know it while unscrewing it. To back up I should mention I purchased a rebuild kit cause I needed only the gaskets. And it came with everything. So I figured while it was apart...

anabolicinsider · April 14th, 2012, 03:15 PM

Anyone else have a carb for sale?

anabolicinsider · April 14th, 2012, 03:17 PM

Realistically my budget is 100 plus whatever shipping will be to michigan

anabolicinsider · April 14th, 2012, 03:18 PM

Or if someone has for sale only one side of the duel carb setup I am willing to purchase one side if the price is right.

anabolicinsider · April 14th, 2012, 03:25 PM

The tip broke off in the hole. Tried using a dentist pick tool to force it back out. Ended up bending the tip making it worse and harder to get out. The more I tried the more I widend the hole... And it's really stuck... So now... I much buy a used carb..

So again I ask..

1988-2007. Anyone have a carb? Budget $100 plus shipping

choneofakind · April 14th, 2012, 06:43 PM

http://www.ebay.com/itm/2008-NINJA-E...#ht_1199wt_952
^^ this will need pregen needles, 105 main jets, (and possibly pilot jets?) but a jet kit (or jetsrus.com) will solve that.

http://www.ebay.com/itm/95-96-KAWASA...#ht_1294wt_952
^^ you might get lucky and they might accept $100 + shipping. It's worth messaging the seller.

http://www.ebay.com/itm/2005-NINJA-E...#ht_500wt_1202

http://www.ebay.com/itm/K54-88-07-KA...83e81a&vxp=mtr
^^ worth asking about just the carbs.

http://www.ebay.com/itm/2007-Kawasak...#ht_500wt_1202

anabolicinsider · April 15th, 2012, 06:29 AM

thanks everyone, if everything goes right, ive lined up a carb for 100 shipped

j98sprint · June 15th, 2012, 12:04 PM

About your original question....that diaphragm should be OK if there are no holes or tears in it and if you can get the lip of it to sit in the channel of the carb body properly.

Whenever I do carb work with the diaphragm to be removed I place the diaphragm (attached to that plastic slide piece) in the freezer. When it's cold the lip just falls in the carb channel where it's supposed to sit. I guess it contracts slightly when cold.

This works for me every time and I've done it many times.

j98sprint

April 5th, 2012, 05:52 PM	#1
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	1998 Ninja 250 - Rebuilding Carb? hello everyone, just got the carb off. exhaust was blowing white smoke out the RIGHT exhaust pipe. upon examining the vacuum diaphragm's i noticed the right diaphragm was very warped, and the left one was perfect with no warping at all.. what is your opinion? and also, if it does have to be replaced,, what is your opinion on stuff on ebay or amazon,, because those are like 30 dollars instead of 100+ for the diaphragm! and does it 100% have to be from a ninja 250 88-07, or is this a pretty universal part from kawasakis? just curious thanks in advance

April 6th, 2012, 07:59 AM	#3
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	Looks like it not making a good seal on the right side near the edge. Prices for those things suck. It can be cheaper and easier to find a used carb setup. No clue on the ebay/amazon stuff. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

April 7th, 2012, 07:26 AM	#7
Trash Can Man ninjette.org member Name: John Location: KCMetro Join Date: Apr 2012 Motorcycle(s): Ninja 250, 87 & 99 Concours, Buell 1125CR Posts: 34	That part probably won't fit, but you can cross-reference the files at Bike Bandit to find out. Have you tried searching for motorcycle salvage yards in your area for the part? __________________________________________________ Bumpty,bumpty, bump

April 7th, 2012, 12:08 PM	#15
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	http://www.youtube.com/watch?v=J2VvqwuVzkg this is the only time its been started while in my possession. there is a low idle knock if you listen closely enough, 1 cylinder not firing properly. ignition coil wire on the non-firing side is pretty chewed up. will fix that then see if the other cylinder kicks in. first though, we're cleaning the carbs so more gunk isn't getting pushed through. Last futzed with by anabolicinsider; April 7th, 2012 at 12:34 PM. Reason: typos

June 15th, 2012, 12:04 PM	#25
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	Cool it daddy-o About your original question....that diaphragm should be OK if there are no holes or tears in it and if you can get the lip of it to sit in the channel of the carb body properly. Whenever I do carb work with the diaphragm to be removed I place the diaphragm (attached to that plastic slide piece) in the freezer. When it's cold the lip just falls in the carb channel where it's supposed to sit. I guess it contracts slightly when cold. This works for me every time and I've done it many times. j98sprint

April 6th, 2012, 07:50 AM	#2
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	bump

April 6th, 2012, 08:06 AM	#4
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	Prices do suck bad. 80-125 roughly.

April 6th, 2012, 07:50 PM	#5
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	My buddy has a Carb from a 95 Kawasaki 650. Would the Carb or diaphragm fit from that?

April 6th, 2012, 09:28 PM	#6
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	I mean 600

April 7th, 2012, 07:31 AM	#9
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	!!!! The part number on bikebandit is the same for both the 600 and the 250 !!!!

April 7th, 2012, 08:35 AM	#10
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	i spoke too soon,, the REFERENCE number is the same,, not the part number.. still going to take apart buddies carb to see if it looks the same though.

April 7th, 2012, 09:16 AM	#11
Skippii Milkshake Drinker Name: Skippii Location: Richmond, Va Join Date: Aug 2011 Motorcycle(s): 2007 Orange DRZ400-S, 2005 Ninja 250 & Custom Thundercunt Dirt Chopper Posts: A lot.	White smoke in the exhaust usually means a bad head gasket or piston, not anything to do with a carb. Posted via Mobile Device

April 7th, 2012, 09:22 AM	#12
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	@skipp,,,, carb in general, upon opening it, does need to be cleaned as is sat for quite some time with gas in it. in regard to the asked question, is about the diaphragm, not the white smoke, if in deed that needs to be addressed at a later date then it will be. what is your opinion on the diaphragm as many new ones i see for sale have ripples in it and arent perfect like the one on the opposing carb?

April 7th, 2012, 09:25 AM	#13
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	not really too worried about having to do a top end job on the engine. piston being roughly 40-50, head gasket being 15-20ish and ring set being 40ish. quite affordable

April 7th, 2012, 12:08 PM	#14
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	<iframe width="420" height="315" src="http://www.youtube.com/embed/J2VvqwuVzkg?rel=0" frameborder="0" allowfullscreen></iframe> this is the only time its been started while in my possesion. there is a low idle knock if you listen closely enough, 1 cylinder not firing properly. ignition coil wire on the non-firing side is pretty chewed up. will fix that then see if the other side kicks in. first though we're cleaning the carbs so much gunk isnt getting pushed through.

April 8th, 2012, 02:50 PM	#16
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	http://www.youtube.com/watch?v=tyuah...ens0Y8uBFlOoo= Cleaned the carbs again instead of taking the previous owners word on it. They were quite nasty inside! Started first try now with choke on. And with warmer weather the rest of the day it even started without choke.

April 14th, 2012, 03:07 PM	#17
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	Screwed up the carb

April 14th, 2012, 03:13 PM	#18
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	The pilot air screw tip was stuck in the hole and I didn't know it while unscrewing it. To back up I should mention I purchased a rebuild kit cause I needed only the gaskets. And it came with everything. So I figured while it was apart...

April 14th, 2012, 03:15 PM	#19
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	Anyone else have a carb for sale?

April 14th, 2012, 03:17 PM	#20
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	Realistically my budget is 100 plus whatever shipping will be to michigan

April 14th, 2012, 03:18 PM	#21
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	Or if someone has for sale only one side of the duel carb setup I am willing to purchase one side if the price is right.

April 14th, 2012, 03:25 PM	#22
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	The tip broke off in the hole. Tried using a dentist pick tool to force it back out. Ended up bending the tip making it worse and harder to get out. The more I tried the more I widend the hole... And it's really stuck... So now... I much buy a used carb.. So again I ask.. 1988-2007. Anyone have a carb? Budget $100 plus shipping

April 14th, 2012, 06:43 PM	#23
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	http://www.ebay.com/itm/2008-NINJA-E...#ht_1199wt_952 ^^ this will need pregen needles, 105 main jets, (and possibly pilot jets?) but a jet kit (or jetsrus.com) will solve that. http://www.ebay.com/itm/95-96-KAWASA...#ht_1294wt_952 ^^ you might get lucky and they might accept $100 + shipping. It's worth messaging the seller. http://www.ebay.com/itm/2005-NINJA-E...#ht_500wt_1202 http://www.ebay.com/itm/K54-88-07-KA...83e81a&vxp=mtr ^^ worth asking about just the carbs. http://www.ebay.com/itm/2007-Kawasak...#ht_500wt_1202

April 15th, 2012, 06:29 AM	#24
anabolicinsider ninjette.org member Name: Josh Location: Lower Michigan Join Date: Apr 2012 Motorcycle(s): 1998 Ninja 250 Posts: 30	thanks everyone, if everything goes right, ive lined up a carb for 100 shipped

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