Coolant Fan not workin

[tommydog]

My coolant fan will not work I unpluged the wire & cleaned the wire ends the best i cld hooked it back up still wont come on. Is there a way I can check to see if the motor is any good? & what else sld I look into

[Fred Camper]

The thermo switch grounds the fan, so if you ground that lead of the fan then the fan should run when the ignition is on. The other lead of the fan gets 12V from the ignition switch.

[artgrantz]

The thermo switch on my GL1000 stopped working. I installed a toggle switch in parallel with the thermo switch and turned the fan on manually whenever my ankles got hot. Usually when riding at normal speeds the fan isn't needed, only in slow moving traffic or when stopped.

[tommydog]

I can ride mine (79 GL1000) to work in the mornin 30 miles no problem but on the way home wif it hot my temp hand gets close to the gap before the H before I get home, hope ya no what I mean. So I stop for a while. Sounds like I got more of a problem somewhere, I hooked a wire up to the battery & pluged it in to the wire from the fan motor it works. This thermo switch is that the thang rite under the motor looks like it hooks up to where the thermostat is, we tried to unplug that cld not get it unpluged does it jus plug or what? I reckon by now all of yaw now im dont no much about this bike LOL but I ty all for the help I get

[Possum51]

also check the fan fuse, its mounted under the seat on the left side next to the frame in a triangle shaped cover. Thats what it was with my cooling fan. Should be a label close to it that says fan fuse.

[larrycole]

My thermostat switch died 15 years ago. The contacts are in oil all the time and you have to pull the engine to replace it. I just put in a handlebar switch to give the fan a ground when I'm riding slow in hot weather. I once read a post where a guy "fixed" his thermo switch by running a 120v ac through it, but I wouldn't recommend it.

Larry
'76 Yellow

[scotterichmond]

My thermostat switch died 15 years ago. The contacts are in oil all the time and you have to pull the engine to replace it. I just put in a handlebar switch to give the fan a ground when I'm riding slow in hot weather. I once read a post where a guy "fixed" his thermo switch by running a 120v ac through it, but I wouldn't recommend it.

Larry
'76 Yellow

I think you might be confusing the neutral switch here , it is in oil and engine needs to come out to get to it. the thermo swith is on to of the engine at the thermostat housing

[larrycole]

You're right about the neutral switch. I must have been lazy or cheap not to replace the thermo switch. I kinda like the manual switch now though. I just flip it on if I'm sitting in traffic in the summer.

Larry
'76 Yellow

[scotterichmond]

I have looked at prices, and quality switches a not cheap $50-$70. Glad mine is working.

[tommydog]

Looking at the coolant fan where ya can c it turning which direction sld the fan be turning ?

[tommydog]

got it workin ty all