ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-06-2009, 08:45 PM   #1
KLRThumper OP
Adventurer
 
Joined: Feb 2009
Location: Seattle, WA
Oddometer: 31
KLR 650 Fan Problems

I just got back from a 2000 mile trip to San Fransisco and as soon as I started riding in the city back here in Seattle I started having problems with my bike overheating. It takes all of 10 minutes in downtown stop and go before it hits the red bar and I have to pull over.

Problems
-The fan does not seem to run
-When I turn the bike off the fan does not run
- I smell a faint rubber smell

I have checked the fan to make sure it does spin freely when i push it with my finger.

Has anyone had a problem like this before or know of anything that I could try to isolate the problem. Thanks
KLRThumper is offline   Reply With Quote
Old 04-06-2009, 09:16 PM   #2
faceman
currently ADV-less..
 
faceman's Avatar
 
Joined: Jan 2006
Location: Pugetropolis
Oddometer: 161
guessing,...could be blown fuse,...broken wire,..bad temp sensor...
bad ground...unplugged...when was the last time you heard it run?
worst case bad fan motor. Try jumping diectly to the battery to
see if it runs, but make sure you get the right wire to positive.
If it does work,...use a volt/ohm meter to trace and check the wiring
harness.
__________________
'86 VFR 750 R/W/B

95 KLR650 - '02 KTM 640 Adventure R,... Gone, but not forgotten
faceman is offline   Reply With Quote
Old 04-06-2009, 09:32 PM   #3
Durden
Freak!
 
Durden's Avatar
 
Joined: Aug 2005
Location: Calgary, Alberta
Oddometer: 477
Replace the fuse, if thats not the issue let me know where I can mail my $20 to....

Either that, or just make sure you are always driving really freaking fast.
Durden is offline   Reply With Quote
Old 04-06-2009, 09:52 PM   #4
faceman
currently ADV-less..
 
faceman's Avatar
 
Joined: Jan 2006
Location: Pugetropolis
Oddometer: 161
Just looked over the CD/manual,.. could also be the fan relay(under the tank,
to the right of the main frame) between the frame and overflow tank.


White wire, 20 amp fuse, supplies (+) power to relay. From the relay, Red/White goes to the
Temp sensor on the radiator,..Blue supplies power to the fan motor and Black/Yellow "from" the
fan motor is (-) ground.
__________________
'86 VFR 750 R/W/B

95 KLR650 - '02 KTM 640 Adventure R,... Gone, but not forgotten

faceman screwed with this post 04-06-2009 at 10:05 PM
faceman is offline   Reply With Quote
Old 04-06-2009, 09:52 PM   #5
caborado
Posing as a n00b
 
caborado's Avatar
 
Joined: Feb 2008
Location: Morrison, CO
Oddometer: 187
Survey sez.....

my money is on the fuse....
been there, replaced that...
carry spare fuses...
....wait there should be one in the fuse holder....

Let us know

Once in a blue moon the thermo sensor will poop out....
__________________
http://klrworld.com/forums/
http://www.apriliaforum.com/forums/
Somewhere between the tire rolling across the ground and the smile on my face there is a throttle twisting in my hand~Cabo
caborado is offline   Reply With Quote
Old 04-06-2009, 09:55 PM   #6
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,437
Check the fuse.

If the fuse is good then do this quick trouble shooting check.

Pull the wire off of the fan switch lead.
The fan switch is located on the bottom of the radiator.

Get a 6-8 inch piece of electrical wire (your choice of gauge), strip the ends, put one end in the fan switch lead and ground the other end.

It does not matter if the ignition switch is on or off, the fan should run.

If the fan does not run then your next step is to check the fan relay.

If the fan runs then you have a problem with the fan switch.
guns_equal_freedom is offline   Reply With Quote
Old 04-07-2009, 12:37 PM   #7
KLRThumper OP
Adventurer
 
Joined: Feb 2009
Location: Seattle, WA
Oddometer: 31
Quote:
Originally Posted by guns_equal_freedom
Check the fuse.

If the fuse is good then do this quick trouble shooting check.

Pull the wire off of the fan switch lead.
The fan switch is located on the bottom of the radiator.

Get a 6-8 inch piece of electrical wire (your choice of gauge), strip the ends, put one end in the fan switch lead and ground the other end.

It does not matter if the ignition switch is on or off, the fan should run.

If the fan does not run then your next step is to check the fan relay.

If the fan runs then you have a problem with the fan switch.
Ok so I checked the fuse and it was not blown. So I tried grounding the fan switch lead and still got nothing... Anything else I can try?
KLRThumper is offline   Reply With Quote
Old 04-07-2009, 12:43 PM   #8
KLRThumper OP
Adventurer
 
Joined: Feb 2009
Location: Seattle, WA
Oddometer: 31
How do you check the fan relay?
KLRThumper is offline   Reply With Quote
Old 04-07-2009, 01:50 PM   #9
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,437
Quote:
Originally Posted by KLRThumper
How do you check the fan relay?
You need to buy a factory service manual.

The easy way is to pull the relay from the sidestand safety switch and swap it with the fan switch relay.

The fan switch relay is round and on the metal support of the coolant tank.
The sidestand safety switch is under the plastic cover near the battery.

Then try grounding the fan switch lead to bare metal and see if it works.

One other thing is to power the fan from the battery, run leads from the battery to the fan, make the contact with the ground and see if the fan runs.

The fan circuit is pretty basic -



It's either the fuse, relay, fan switch or a wiring problem.
guns_equal_freedom is offline   Reply With Quote
Old 04-07-2009, 02:18 PM   #10
KLRThumper OP
Adventurer
 
Joined: Feb 2009
Location: Seattle, WA
Oddometer: 31
Is the relay under the gas tank?
KLRThumper is offline   Reply With Quote
Old 04-07-2009, 03:28 PM   #11
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,437
Quote:
Originally Posted by KLRThumper
Is the relay under the gas tank?
Yes.........

The other one is under the seat.

Buy a factory service manual already.....
guns_equal_freedom is offline   Reply With Quote
Old 04-07-2009, 06:42 PM   #12
KLRThumper OP
Adventurer
 
Joined: Feb 2009
Location: Seattle, WA
Oddometer: 31
I know. Where would you suggest I pick one up at?

Is there an electronic one i can buy right now?
KLRThumper is offline   Reply With Quote
Old 04-07-2009, 07:14 PM   #13
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,437
Quote:
Originally Posted by KLRThumper
I know. Where would you suggest I pick one up at?
Is there an electronic one i can buy right now?
Kawasaki

http://tinyurl.com/dbb5s5
guns_equal_freedom is offline   Reply With Quote
Old 04-07-2009, 07:22 PM   #14
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,437


guns_equal_freedom is offline   Reply With Quote
Old 04-07-2009, 07:37 PM   #15
yosmitetom
Banned
 
Joined: Jun 2008
Location: East Texas
Oddometer: 3,354
Fan relay us near the fuse, right under tank. The sidestand/safety relay is identical under cover on left side near battery. Advance Auto has a replacement relay . . . maybe:

Manufacturer - GP Sorenson
Number on Box - 41-5002
Other Part Number - R3054Z
Cost - $12.98


Por nada.
yosmitetom is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
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 On

Forum Jump


Times are GMT -7.   It's 08:38 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014