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Discussion Starter · #1 ·
I'm trying to remember hwat car the thermostat and fan switch is the same for 650's.



If memory serves it is from a 1983 honda civic, 1.5l.



My thermostat is sticking and the fan switch just went out last week, so if someone could confirm this for me I would apreciate it.



thanks guys.
 

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Ditto panthers comment. My gl650i runs hot.



Also are there different temp thermostats. And what temp would be recommended.
 

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Discussion Starter · #4 ·
Oh come on guys, I know the info is out there.



I wish I could dig it up in the old forum, but...
 

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http://choppercharles.com/cs/forums/143130/ShowPost.aspx







I have in front of me a fan switch from a 650 and a Kemparts #RF3 Rad Fan Switch to fit '80s Honda Civic.They are, for all intents and purposes, identical.



The important dimensions match (threads, hex for wrench, length &c) and the only difference is that the Honda switch has brown epoxy and has the little plastic rings on the terminals while the Kemparts one has black epoxy.



The biggest difference is that the Kemparts switch only cost me $35 and change (Cdn) as opposed to nearly $75 for the Honda part (online price, not including shipping).






 

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Discussion Starter · #6 ·
Thanks Shep!



I have a thermostat out of a spare bike and will be matching them up shortly. I'll let you guys know.
 

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Discussion Starter · #8 ·
Ok, I didn't get all the numbers.



But,

I matched up the parts to a '83 Honda civic w/ 1.5l CVCC I-4



Thermo switch for the fan is from BWD bought at Pep-Boys:

TFS500P



Lists for $75, I bought it with my account at work for $15.

Expect to pay about $30



Thermostat is a Slant:

59868, heavy duty 180 deg. the one I took out was a 180, so I think that is stock for our bikes.

Stock for a '83 honda civic with 1.5l is 195deg.
 

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Discussion Starter · #9 ·
Thermostat is a Slant:

59868, heavy duty 180 deg. the one I took out was a 180, so I think that is stock for our bikes.

Stock for a '83 honda civic with 1.5l is 195deg.




Ok, bad news, the Slant 59868 is 2 millimeters to Tall to fit in my housing.

lol.

could tell until I tried to put it in.
 

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180 degrees seems to hot. But I don't know. My fan seems to kit on once my pant legs catch fire. lol Seriously my engine feels hot the temp gauge is 3/4 towards the hot side when the fan kicks on for only a few seconds then shuts off. I want to run mine cooler and keep the temp at a steady degree.



Not at all sure how to and if possible.



Are you sure the brand of thermostat is not Stant?
 

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180 degrees seems to hot. But I don't know. My fan seems to kit on once my pant legs catch fire. lol Seriously my engine feels hot the temp gauge is 3/4 towards the hot side when the fan kicks on for only a few seconds then shuts off. I want to run mine cooler and keep the temp at a steady degree.



Not at all sure how to and if possible.



Are you sure the brand of thermostat is not Stant?


I just put a manual switch on mine and it works great.
 

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I was considering that. One wire to the fan, the other to the sensor?



Anyone have a diagram?



And arent these bikes gl650 suppose to keep themselves cool at a regulated temp?



I mean certainly they didnt role off the show room floor this way back in 1983. No one would have bought them.



So I ask what will it take to get the cooling system back to its new condition.



1. Clean the inside of the cooling system thoroughly (I used Sheps method)



2. Replace the thermostat



3. Replace the temp sensor



4. Fill with proper diluted antifreeze



What am I missing?
 

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From what other members have said these bikes did roll out of the show room like this. The easy way to get the temp to stay where you think is right is to change the temp sending unit that triggers the fan. But maybe you should think about it like this. The gauges isn't the right one. Like for the speedos. Some came with 120-130mph but others got 85pmh. So if you drive 90mph everywhere you're pegged out instead of having 30 more mph to go.



I think the temp gauge is like that since it doesn't activate the fan till it gets to the red side just like most of the automatic fans on cars that I have seen. Who's to say if the cx500 had an automatic fan that it wouldn't kick in around there. The temp gauge doesn't actually have temp marks like a car does so you don't know were 180 actually falls. Maybe the gauge is only rated for showing 200 degrees and the correct looking one would show for 250 degrees.



You're probably obsessing over nothing.
 

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