Bike keeps over heating : KawiForums.com Kawasaki Forums: Kawasaki motorcycle forums
» Sponsors





» Insurance
Go Back   KawiForums - Kawasaki Motorcycle Forums > On-Road > Ninja 250R
New User? Register - Forgot Password

Reply
 
LinkBack Thread Tools Display Modes
Old 12-09-2012, 12:09 AM   #1 (permalink)
Jr. Member
 
Join Date: Dec 2012
Posts: 7
marino6385 has at least 10 rep points
Default Bike keeps over heating

OK so I just bought a 2004 Ninja250 and it keeps overheating. I replaced the radiator fan and sensor switch and today I replaced the thermostat figuring it was stuck shut. I also tried to "burp" the radiator then flushed it figuring it had an air bubble or some kind of block but no luck. One thing I have noticed though is that the fan never engages even wheel the gauge gets into the red. Any other suggestion what it might be? And why wont the fan turn on when its running so hot?
marino6385 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-09-2012, 01:15 AM   #2 (permalink)
Jr. Member
 
Join Date: Oct 2012
Posts: 5
flyguyty12 has at least 10 rep points
Default

Check your fuses


Sent from my iPhone using MO Free
flyguyty12 is offline   Reply With Quote
Old 12-09-2012, 01:19 AM   #3 (permalink)
Member
 
Join Date: Jul 2011
Location: NC
Posts: 557
Dablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep points
Default

Other than the fan not coming on and the temp gauge being in the red is there any overflowing of coolant. How fast does it overheat? Have you replaced the radiator cap. A bad cap will release pressure prematurely mimicking overheating.

he new gen and pre gens share the same cap. Stock 1.1 BAR / 16 PSI (SAE range 14-18 PSI) radiator cap # 49085-1066 can be replaced by
Stant's 10233
Prestone's RR-33
CARQUEST 33044
Gates 31336
Gates Canada 31336
NAPA 703-1406
Stant (Carded) 11233
Stant (Carded) 70233BL
Stant (Carded) 70233RD
CST 7516(@ AutoZone)
Dablue1 is offline   Reply With Quote
Old 12-09-2012, 08:40 AM   #4 (permalink)
Proud A-hole
 
LarryJ's Avatar
 
Join Date: Apr 2010
Location: Chesapeake, VA '06 ZZR fighter, 05 VTX-1300
Posts: 15,121
LarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep pointsLarryJ has between 60,000 and 70,000 rep points
Send a message via Skype™ to LarryJ
Default

Sounds like a fuse. You've replace the switch and fan, so the fuse would be my next place to look. (Actually it would have been the first place I would have looked before replacing other parts or flushing the radiator).
__________________
Most violated KF rule: 2. - Post titles should be descriptive of the contents of your post. i.e. "Help with fuel injectors" instead of "HELP!!!!"


LarryJ is offline   Reply With Quote
Old 12-09-2012, 10:11 AM   #5 (permalink)
Jr. Member
 
Join Date: Dec 2012
Posts: 7
marino6385 has at least 10 rep points
Default

Yeah I checked the fuse first and the fuse is still good. When I conect the fan wires to a power source the fan goes on so I know the fan works. The coolant doesnt overflow or anything like that. But it will over heat within 5-7 minutes of idling. Ill start the bike with the choke on and with in 7 minutes it'll be heading into the red. Ill try replacing the radiator cap too.

Thanks for your suggestions, I appreciate it.
marino6385 is offline   Reply With Quote
Old 12-09-2012, 03:03 PM   #6 (permalink)
Member
 
Join Date: Jul 2011
Location: NC
Posts: 557
Dablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep points
Default

Quote:
Originally Posted by marino6385 View Post
....But it will over heat within 5-7 minutes of idling. Ill start the bike with the choke on and with in 7 minutes it'll be heading into the red.
What is your idle speed after the bike is warm?
You should not have the choke on for more than a minute or two.
The fan comes on when the coolant gets above about 225F. It stays running until the coolant temperature falls back below 205F. Many bikes engage the fan just below the red zone, while others have been reported engaging the fan at the mid-way point on the temperature gauge. The most important thing is that it's entirely normal for your bike's temperature gauge to run all the way up to the bottom of the red zone before the fan comes on.
Dablue1 is offline   Reply With Quote
Old 12-10-2012, 05:45 PM   #7 (permalink)
Jr. Member
 
Join Date: Dec 2012
Posts: 7
marino6385 has at least 10 rep points
Default

Im not exactly sure what the idle speed is. But i do know the fan isnt engaging even when the gauge is reading slightly into the red.
marino6385 is offline   Reply With Quote
Old 12-10-2012, 06:04 PM   #8 (permalink)
Member
 
Join Date: Jul 2011
Location: NC
Posts: 557
Dablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep pointsDablue1 has at least 2000 rep points
Default

Quote:
Originally Posted by marino6385 View Post
Im not exactly sure what the idle speed is. But i do know the fan isnt engaging even when the gauge is reading slightly into the red.
The engine should idle at 1300 (+/- 100) rpm when the engine is fully warm. If the bike is really overheating you will get some coolant being released. Just stop letting it idle so long and ride it. The temp needle will either go up or down, if it continues to go up, the fan should come on when the temp hits 225.
Dablue1 is offline   Reply With Quote
Old 12-11-2012, 12:37 AM   #9 (permalink)
Jr. Member
 
Join Date: Dec 2012
Posts: 7
marino6385 has at least 10 rep points
Default

Its idling around 1000rpm. Ill try to not let it idle so long and just ride the thing around and see if it helps. The previous owner put a "sticker thermostat" on the side of the engine so Im hoping he was making the same mistake. Time will tell!
marino6385 is offline   Reply With Quote
Old 12-11-2012, 10:31 PM   #10 (permalink)
Jr. Member
 
Join Date: Dec 2012
Posts: 7
marino6385 has at least 10 rep points
Default

so today I tried to only leave the choke on for about a minute then started riding. It didnt overheat right away but slowly the needle worked it way into the red and the fan never kicked on. Any ideas? At this point Im thinking the replacement temperature sensor was no good.
marino6385 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 01:04 PM.



Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum Ninja H2 Forum Ducati Scrambler Forum