|
May 27th, 2014, 01:20 PM
|
#1 |
|
ninjette.org newbie
Name: Michael
Location: Fond du Lac
Join Date: Apr 2014 Motorcycle(s): 2000 ninja 250 Posts: 7
|
Large battery and radiator fan
So one day leaving to go to work I go in the garage and see my key in the on position on the bike...dead battery. So I decide as a quick fix that I would just put my battery from my old and sold kz440. Just took the insert tray out dropped in in bent the connectors and was on my way. No problems until that Saturday after a 20 minute ride to a movie. I got out of the theatre and the radiator fan was STILL running. Some how it still started so I went home. Had more battery problems so I just put the OEM style battery back in and now my radiator fan actually works like it should.
Is there any reason or correlation between a bigger battery and a radiator fan running for 1 1/2 hours? Also how long does your radiator fan run after a long ride.? |
|
|
|
May 27th, 2014, 01:59 PM
|
#2 |
|
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
|
The radiator fan is connected directly to the battery. The radiator fan may start even if the ignition switch is off. If the engine temp is too high it will run until the temp goes down. The fan comes on when the coolant gets above about 225 F. It stays running until the coolant temperature falls back below 205 F, even after the engine is cut off and the key removed Anything longer than 2-5 minutes would probably indicate a problem with a stuck/ improperly operating fan switch or cooling system (especially after only 20 minutes of riding). Battery size shouldn't be an issue
|
|
|
1 out of 1 members found this post helpful. |
|
May 27th, 2014, 02:11 PM
|
#3 |
|
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
|
if i remember right, it's a schmitt trigger like the 1302 so either a higher input voltage or somehow more draw current means the temp sender (10 ohm thermistor) voltage drop wont be enough to bring the schmitt below the threshold to turn off.
but really it shouldn't be able to do that unless the battery was somehow at like 24 volts.
__________________________________________________
  
|
|
|
|
|
May 27th, 2014, 06:18 PM
|
#4 |
|
ninjette.org newbie
Name: Michael
Location: Fond du Lac
Join Date: Apr 2014 Motorcycle(s): 2000 ninja 250 Posts: 7
|
Anybody seen someone turn their radiator fan to static (manual on-off switch)
|
|
|
|
|
May 27th, 2014, 07:23 PM
|
#5 | |
|
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
|
Quote:
The thermo-switch that commands your fan is defective. It can drain your battery or cause overheating as well; both are bad things: replace it ASAP !!!
__________________________________________________
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 |
|
|
|
|
 |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| radiator FAN SWAP | james250ninja | 1986 - 2007 Ninja 250R Tech Talk | 3 | August 20th, 2014 09:03 PM |
| HELP! Radiator fan not working and overheated | raiden | 2008 - 2012 Ninja 250R Tech Talk | 6 | August 9th, 2011 06:04 AM |
| Radiator Fan Led | WindMeUp | 2008 - 2012 Ninja 250R Farkles | 5 | September 10th, 2010 04:33 PM |
| Radiator Fan Problems | wayanlam | 2008 - 2012 Ninja 250R Tech Talk | 9 | July 22nd, 2009 07:16 PM |
| Radiator Fan Question | ajcalamia | 1986 - 2007 Ninja 250R Tech Talk | 9 | February 8th, 2009 07:28 PM |
|
|
