Rad fan always on

[Rollyreload]

Hey new here and awaiting spring to come to sunny Alberta. I have a 99 venture I just picked up and the fan is on the second I turn the key on. Bad sensor or trace wiring?

 

 

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[cimmer]

Welcome to the group.

Could be a number of things. Maybe the previous owner wired it to run all the time, the switch could be bad or maybe there is a toggle switch that the previous owner hooked up to it to control it. I would start by checking out the wiring and seeing if is running to the temperature switch. I dont own a second generation Venture so I not 100% sure on where it is located.

Here is a link to a thread with the 99 VR wiring Schematics that might help you.. http://www.venturerider.org/forum/showthread.php?42357-2nd-Gen-Wiring-Schematics-99-09-RSV

Here is another link to where you can download the service manual for the 99 VR if you dont have one. It should have a section on troubleshooting your fan and temp sensor that controls it. http://www.venturerider.org/forum/showthread.php?1828-Download-the-Owners-and-Service-Manuals

 

Check those out and see if that helps you out and of course ask more questions here. I think someone with a little more experience on the 2nd Gens will pipe in also with information.

 

Hope that helps you get started on it.

 

Rick F.

[bongobobny]

Does it do any other weird things and is there any dash warning lights lit at the same time???

 

As mentioned, we will be glad to help you troubleshoot this! There are many here knowledgeable in electronics and quirks with the electrical system of the 2nd Generation Venture...

 

It's probably the thermal switch, which is located on the right side sort of under the seat. You will have to remove the gas tank as well! Find page 2-38 in the electrical document here...

 

http://www.venturerider.org/wiring/99-09%20Yamaha%20Royal%20Star%20Venture%20electrical%20info.pdf

 

But this picture is a little confusing! The thermal unit screws into the Thermostat housing. Once you remove the gas tank you will find the radiator fill cap, just follow the hose down to the thermostat housing. It's section 5 of the downloadable service manual found here...

 

http://www.venturerider.org/forum/showthread.php?1828-Download-the-Owners-and-Service-Manuals

[Rollyreload]

I will have a look once I push the fresh foot of snow away from my shed. Damn winter!!!

 

 

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