radiator hose burst :( leaking coolant

h0yitsdom · June 2nd, 2011, 12:19 PM

this just happened maybe like 10-20 minutes ago, coming home from a ride on the freeway and while i'm pulin in to my parking lot space i see some drops of liquid then look closer and notice its coolant

here is the culprit does anyone know what the part number is for it?

its the hose on the left connected to the water pump, this is looking from above

and here is another picture i found, the part that was leaking is to the left of the circled bolt

h0yitsdom · June 2nd, 2011, 12:23 PM

just found this picture

from what i can tell it seems like the part i'm looking for is

#32102A

kkim · June 2nd, 2011, 12:30 PM

Quote:

Originally Posted by h0yitsdom

just found this picture

from what i can tell it seems like the part i'm looking for is

#32102A

looks correct to me.

How do you know it's the hose that's the problem? can you see the split in it?

DaBlue1 · June 2nd, 2011, 12:33 PM

It's a drain bolt. Tightening it should resolve your problem. Torque the Drain Bolt to 9.8 N·m (1.0 kgf·m or 87 in·lb)
Make sure you check your coolant level. Also cleaning the area around the source of the leak makes it easier to identify.

h0yitsdom · June 2nd, 2011, 12:40 PM

i actually saw the fluid coming out of the hose and its loose now it looked like a crack and then the coolant was squirting out in a fine line

im going to look at the bolts tomorrow and remove the fairing so i can get a better look at everything

kkim · June 2nd, 2011, 12:44 PM

if you are sure it's the hose that's damaged, then yes, the part number you listed is correct from that picture.

CZroe · June 2nd, 2011, 12:45 PM

My coolant was leaking from where the same hose goes into the radiator but it seems to have stopped (been months). I'll be watching it more closely as temps go up. If I have to, I'll try replacing the clamp before the hose.

h0yitsdom · June 2nd, 2011, 12:48 PM

thats the thing mine wasn't leaking at all then today it pretty much dropped all of my coolant in my parking space and onto my lower fairing

kkim · June 2nd, 2011, 12:50 PM

is part 670A an O-ring? could it be bad?

DaBlue1 · June 2nd, 2011, 01:06 PM

Quote:

Originally Posted by kkim

is part 670A an O-ring? could it be bad?

A bad o-ring will definitely make it loose and leak. All coolant hoses and clamps should be check every 6k miles. It is rare that a metal pipe would crack or split not unless it was damaged in some way. It would take more than 18 psi (system pressure)to split the pipe.

h0yitsdom · June 3rd, 2011, 09:24 AM

the hose that split and is leaking is rubber tho, it connects into a metal bracket on the water pump but that isn't the part thats leaking, at least i don't think so

pilot815 · June 3rd, 2011, 11:06 PM

If its a rubber hose thats leaking then take it off and go to a local autoparts store and get the same size diameter. You will pay a premium by going with OEM Kawi parts.

June 2nd, 2011, 12:19 PM	#1
h0yitsdom newbie newbie Name: Dominic Location: socal Join Date: Apr 2011 Motorcycle(s): 2006 Ninja ex250 Posts: 32	radiator hose burst :( leaking coolant this just happened maybe like 10-20 minutes ago, coming home from a ride on the freeway and while i'm pulin in to my parking lot space i see some drops of liquid then look closer and notice its coolant here is the culprit does anyone know what the part number is for it? its the hose on the left connected to the water pump, this is looking from above and here is another picture i found, the part that was leaking is to the left of the circled bolt

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Coolant Reservoir disconnected hose	Ninja Rob	1986 - 2007 Ninja 250R Tech Talk	4	September 23rd, 2014 02:15 PM
New venhill SS hose is leaking at the banjo	M42	1986 - 2007 Ninja 250R Tech Talk	11	June 22nd, 2014 01:22 PM
Coolant leaking from the top of the engine...	LoneRonin	2008 - 2012 Ninja 250R Tech Talk	9	April 16th, 2013 06:56 PM
Leaking coolant	Chuffmonkey	2008 - 2012 Ninja 250R Tech Talk	5	May 30th, 2012 11:47 PM
Issue with leaking oil ... no hose on air box ?	thsadmin	1986 - 2007 Ninja 250R Tech Talk	10	May 9th, 2009 06:18 PM

June 2nd, 2011, 12:23 PM	#2
h0yitsdom newbie newbie Name: Dominic Location: socal Join Date: Apr 2011 Motorcycle(s): 2006 Ninja ex250 Posts: 32	just found this picture from what i can tell it seems like the part i'm looking for is #32102A

June 2nd, 2011, 12:33 PM	#4
DaBlue1 Long Time Rider Name: Blue Location: Charlotte, NC Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.	It's a drain bolt. Tightening it should resolve your problem. Torque the Drain Bolt to 9.8 N·m (1.0 kgf·m or 87 in·lb) Make sure you check your coolant level. Also cleaning the area around the source of the leak makes it easier to identify.

June 2nd, 2011, 12:40 PM	#5
h0yitsdom newbie newbie Name: Dominic Location: socal Join Date: Apr 2011 Motorcycle(s): 2006 Ninja ex250 Posts: 32	i actually saw the fluid coming out of the hose and its loose now it looked like a crack and then the coolant was squirting out in a fine line im going to look at the bolts tomorrow and remove the fairing so i can get a better look at everything

June 2nd, 2011, 12:44 PM	#6
kkim Join Date: Nov 2008 Posts: Too much.	if you are sure it's the hose that's damaged, then yes, the part number you listed is correct from that picture.

June 2nd, 2011, 12:45 PM	#7
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.	My coolant was leaking from where the same hose goes into the radiator but it seems to have stopped (been months). I'll be watching it more closely as temps go up. If I have to, I'll try replacing the clamp before the hose.

June 2nd, 2011, 12:48 PM	#8
h0yitsdom newbie newbie Name: Dominic Location: socal Join Date: Apr 2011 Motorcycle(s): 2006 Ninja ex250 Posts: 32	thats the thing mine wasn't leaking at all then today it pretty much dropped all of my coolant in my parking space and onto my lower fairing

June 2nd, 2011, 12:50 PM	#9
kkim Join Date: Nov 2008 Posts: Too much.	is part 670A an O-ring? could it be bad?

June 3rd, 2011, 09:24 AM	#11
h0yitsdom newbie newbie Name: Dominic Location: socal Join Date: Apr 2011 Motorcycle(s): 2006 Ninja ex250 Posts: 32	the hose that split and is leaking is rubber tho, it connects into a metal bracket on the water pump but that isn't the part thats leaking, at least i don't think so

June 3rd, 2011, 11:06 PM	#12
pilot815 ninjette.org member Name: Cory Location: South Texas Join Date: May 2011 Motorcycle(s): Mine: 09 KLR650 Wife: 05 Ninja 250 Posts: 33	If its a rubber hose thats leaking then take it off and go to a local autoparts store and get the same size diameter. You will pay a premium by going with OEM Kawi parts.