fan doesnt come on?? 06' model - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 14 Old 07-02-2018, 09:27 PM Thread Starter
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fan doesnt come on? 06' model

Hi all,,got an 06',,and the rad fan didnt come on today{85-90 degrees outside} wondering what the part numbers are for the coolant sensor on head,,I located the radiator sensor on amazon,,and Im going to change the fan fuse,,coolant,,and dont really want to install on/off switch for fan,,and I dont have an ohm meter or anything like that. Just want to OEM it back to where it was. Any info would be great,,Thanks

Last edited by 2wheeltrcktor; 07-03-2018 at 06:52 PM.
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post #2 of 14 Old 07-03-2018, 01:25 AM
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This weekend it was in the mid 90's here in Michigan and mine never came on unless I stropped and let it idle a few minutes at stoplights. Where did your temp gauge needle get? Mine needs to get well over halfway up the scale before the fan ever kicks in.
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post #3 of 14 Old 07-03-2018, 11:06 AM
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Short the lead to the radiator thermal switch to GROUND. The fan should activate. If it does not, you have an electrical connection (including fan fuse), fan relay (Generation 1), or fan motor problem.

Only after the test with an activated fan should the radiator thermal switch be questioned. Thermal switch test procedure in Service Manuals.

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More importantly, what does your TEMPERATURE GAUGE say? If it's not in, or very near, the RED ZONE, you don't need no stinkin' fan!
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Last edited by Damocles; 07-03-2018 at 11:11 AM.
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post #4 of 14 Old 07-03-2018, 01:35 PM
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You can look up parts for any year Kawasaki here: https://www.kawasakipartsnation.com/...torcycle/parts

Save it for future reference.
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post #5 of 14 Old 07-03-2018, 04:17 PM
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Quote:
Originally Posted by GoMotor View Post
You can look up parts for any year Kawasaki here: https://www.kawasakipartsnation.com/...torcycle/parts

Save it for future reference.
GoMotor, thats not quite true.
Do you have any idea why kawasakipartsnation & kawasakipartshouse both stop at 1984? And that year is a Long Way from complete? 1988 might be the first complete model listing for both of them.

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post #6 of 14 Old 07-03-2018, 04:19 PM Thread Starter
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Quote:
Originally Posted by PaddyD View Post
This weekend it was in the mid 90's here in Michigan and mine never came on unless I stropped and let it idle a few minutes at stoplights. Where did your temp gauge needle get? Mine needs to get well over halfway up the scale before the fan ever kicks in.
normally,, 80 degrees outside temp,, or less ,,fan would come on when needle was just past 1/2- 3/4 way on the gauge,,Im in livonia mi area,,so were having the same weather,,but the other day the needle almost went all the way to the right side of gauge,,and no fan came on,,so I shut it down till I can check fuse and other stuff,Thanks for the input
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post #7 of 14 Old 07-03-2018, 04:25 PM Thread Starter
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Quote:
Originally Posted by Damocles View Post
Short the lead to the radiator thermal switch to GROUND. The fan should activate. If it does not, you have an electrical connection (including fan fuse), fan relay (Generation 1), or fan motor problem.

Only after the test with an activated fan should the radiator thermal switch be questioned. Thermal switch test procedure in Service Manuals.

------------------------------

More importantly, what does your TEMPERATURE GAUGE say? If it's not in, or very near, the RED ZONE, you don't need no stinkin' fan!
ok,,good info thanks. 80 degrees outdoor temp or less,,it would come on when needle got past 1/2-3/4 on the gauge,,its been 90 degrees this week,,and the needle climbed to almost all the way to the right side of gauge,,and fan didnt come on,,so Ill try your test and see what happens. Thanks for all the info guys
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post #8 of 14 Old 07-03-2018, 04:27 PM
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2wheel, Do the fan blades snag the cage anywheres? Or does it turn free? As suggested earlier, disconnect the wire from the switch at the bottom of the radiator and touch it to a cylinder head 'fin'. Then check the fuse behind the coolant reservoir.

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post #9 of 14 Old 07-03-2018, 04:35 PM Thread Starter
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Originally Posted by pdwestman View Post
2wheel, Do the fan blades snag the cage anywheres? Or does it turn free? As suggested earlier, disconnect the wire from the switch at the bottom of the radiator and touch it to a cylinder head 'fin'. Then check the fuse behind the coolant reservoir.
ya know ,,I didnt even check that fan rotation,,Ill do that. Also would there be any advantage to putting in a 20 amp fuse,,instead of the oem 15 amp? thanks
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post #10 of 14 Old 07-03-2018, 06:23 PM
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Originally Posted by 2wheeltrcktor View Post
ya know ,,I didnt even check that fan rotation,,Ill do that. Also would there be any advantage to putting in a 20 amp fuse,,instead of the oem 15 amp? thanks
The main job of a fuse is to protect the wiring in its circuit. If you put in a fuse to handle more current than the wire then the wire is protecting the fuse and it will burn out before the fuse. You should find the real problem and fix it.
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