Coolant overflow and overheating Help Please.

nefiwashere · August 29th, 2012, 04:47 PM

Was riding one day and didn't notice that my hose that connects to the water pump came undone so of curse all my coolant came out. was probably riding a wile before i finally noticed only good thing is was winter time when it happen so it was nice and fresh/cold out.

so i reconnected the hose and refilled it with coolant (yes i used the right kind got the coolant at the Kawasaki place) and burped the system. took it for a long ride and still overheating and coolant coming out of the reserve hose.

decided to test my thermostat to see if it was opening up and it is. i have noticed that my fan does not like to come on so i jury rigged a switch to it to turn it on manually. could not test the fan sensor case i didn't have a volt meter, hence the jury rigged part.

took it again for a long ride again, i would ride slow like if i was in traffic and occasionally stop. Sure enough the temp gauge start to climb so once it past the half way i turned the fan on. temp seem to stay constant as soon as picked up a little more speed only used first and second gear the temp gauge would go down

FINALLY no overheating. but of curse if im in the upper gears it doesn't overheat only in stop and go traffic. so hopefully my switch will solve that problem.

BUT

it still overflows, not alot this time. before it would leave a big puddle and i could hear the water boiling

so fellow bikers what could be my problem for the overflow and overheating?
i was thinking a bad radiator cap
(hopefully overheating is fixed will ride more to be sure)

thanks for any help

oooo i did change my oil recently and i did not seem milky at all normal black

alex.s · August 29th, 2012, 05:02 PM

hard to say. maybe running without coolant overheated some seals and closed off some of the water passages?

Motofool · August 29th, 2012, 05:34 PM

Welcome to the site, Nephi !!

What mix of coolant did you put in?

lgk · August 29th, 2012, 06:09 PM

is your bike stock?

nefiwashere · August 29th, 2012, 07:12 PM

i used the Kawasaki brand coolant. did a 50/50 mix with distilled water

and yes my bike is stock

Lychee · August 31st, 2012, 04:00 PM

Why are you avoiding fixing the fan switch?

flynjay · August 31st, 2012, 04:10 PM

Are you sure the fan switch is broke. Mine doesn't come on until the needle is right up against the red.

Also, the bike is not overheating until it gets into the red. But if you are getting boiling and coolant overflowing then you probably are.

You may have damaged the water pump.

lgk · August 31st, 2012, 05:08 PM

Quote:

Originally Posted by flynjay

Are you sure the fan switch is broke. Mine doesn't come on until the needle is right up against the red.
You may have damaged the water pump.

I was thinking that after he said the pipe popped off and was leaking when he was riding

Motofool · August 31st, 2012, 06:24 PM

Quote:

Originally Posted by nefiwashere

i used the Kawasaki brand coolant. did a 50/50 mix with distilled water

In that case, the problem may be air that remains within or that is leaking into the system.

If the radiator cap is not keeping the proper pressure, the coolant could reach the boiling point.

The generated steam pushes the liquid out an difficult the cooling of the engine.

August 29th, 2012, 04:47 PM	#1
nefiwashere ninjette.org newbie Name: nephi Location: 6135 desert willow Join Date: Aug 2012 Motorcycle(s): 07 ninja 250 Posts: 4	Coolant overflow and overheating Help Please. Was riding one day and didn't notice that my hose that connects to the water pump came undone so of curse all my coolant came out. was probably riding a wile before i finally noticed only good thing is was winter time when it happen so it was nice and fresh/cold out. so i reconnected the hose and refilled it with coolant (yes i used the right kind got the coolant at the Kawasaki place) and burped the system. took it for a long ride and still overheating and coolant coming out of the reserve hose. decided to test my thermostat to see if it was opening up and it is. i have noticed that my fan does not like to come on so i jury rigged a switch to it to turn it on manually. could not test the fan sensor case i didn't have a volt meter, hence the jury rigged part. took it again for a long ride again, i would ride slow like if i was in traffic and occasionally stop. Sure enough the temp gauge start to climb so once it past the half way i turned the fan on. temp seem to stay constant as soon as picked up a little more speed only used first and second gear the temp gauge would go down FINALLY no overheating. but of curse if im in the upper gears it doesn't overheat only in stop and go traffic. so hopefully my switch will solve that problem. BUT it still overflows, not alot this time. before it would leave a big puddle and i could hear the water boiling so fellow bikers what could be my problem for the overflow and overheating? i was thinking a bad radiator cap (hopefully overheating is fixed will ride more to be sure) thanks for any help oooo i did change my oil recently and i did not seem milky at all normal black

August 29th, 2012, 05:02 PM	#2
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	hard to say. maybe running without coolant overheated some seals and closed off some of the water passages? __________________________________________________

August 29th, 2012, 05:34 PM	#3
Motofool Daily Ninjette rider Name: Hernan Location: Florida Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot. MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16	Welcome to the site, Nephi !! What mix of coolant did you put in? __________________________________________________ *Motofool* *.................................Never ride faster than your guardian angel can fly* "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí

August 29th, 2012, 06:09 PM	#4
lgk ninjette.org certified postwhore Name: Jason Location: Norfolk, VA Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.	is your bike stock? __________________________________________________ Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700

August 31st, 2012, 04:00 PM	#6
Lychee sail away Name: Jon Location: San Jose Join Date: Jul 2012 Motorcycle(s): gixxer (sold), ninjette (upgrade!) Posts: 964 Blog Entries: 8	Why are you avoiding fixing the fan switch? __________________________________________________ Unregistered found this post helpful. Track Day Preparation Checklist 1. Financial 2. Mental 3. Physical 4. Gear / Bike

August 29th, 2012, 07:12 PM	#5
nefiwashere ninjette.org newbie Name: nephi Location: 6135 desert willow Join Date: Aug 2012 Motorcycle(s): 07 ninja 250 Posts: 4	i used the Kawasaki brand coolant. did a 50/50 mix with distilled water and yes my bike is stock

August 31st, 2012, 04:10 PM	#7
flynjay ninjette.org guru Name: Jason Location: Houston, TX Join Date: Nov 2011 Motorcycle(s): 2007 Ninja 250 (sold), '06 Ninja 650R Posts: 455	Are you sure the fan switch is broke. Mine doesn't come on until the needle is right up against the red. Also, the bike is not overheating until it gets into the red. But if you are getting boiling and coolant overflowing then you probably are. You may have damaged the water pump.

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