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Author Topic: Temperature getting too hot....  (Read 2571 times)

ScooterLar

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Temperature getting too hot....
« on: September 17, 2016, 02:48:13 PM »
When I idle the bike for a couple of minutes, the temperature gauge keeps rising until I start moving again. It will go right into the red zone if I let it. As long as I'm moving, the gauge stays in the proper zone. Does it sound like the cooling fan is not kicking in, faulty thermostat or a faulty coolant sensor?
« Last Edit: September 17, 2016, 02:50:29 PM by ScooterLar »
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CROSSBOLT

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Re: Temperature getting too hot....
« Reply #1 on: September 17, 2016, 03:27:14 PM »
I guess the thermal switch would be the first thing to check. There was another thread on this forum where I learned from one of you there is a sensor for the gage and one in the radiator for the fan.

Karl
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
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hypophthalmus

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Re: Temperature getting too hot....
« Reply #2 on: September 18, 2016, 07:59:40 PM »
My fan almost never comes on.

I would open the radiator when it's cold and check that it's full.
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ScooterLar

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Re: Temperature getting too hot....
« Reply #3 on: September 19, 2016, 05:44:48 PM »
How could the radiator not be full if the overfill tank level is right on the money?
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2005 Grand Vista
2006 Vespa LX 150
2009 Grand Vista
2006 People 250
2013 Like 200
2013 Like 200 LX
2012 Genuine Buddy 170i
2009 Genuine Buddy 125

xsel777

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Re: Temperature getting too hot....
« Reply #4 on: September 19, 2016, 07:56:52 PM »
There could be several reasons for that. One that comes to mind is that the overflow pipe has a leak so when coolant is supposed to return to the radiator it cant because of the leak, thus remaining full.
I have come to realize that making an assumption should not be considered final until it is confirmed by checking.

 Sent from my Samsung Note 3 with Tapatalk

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xsel777

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Re: Temperature getting too hot....
« Reply #5 on: September 19, 2016, 07:58:58 PM »
If water levels correct, then check fan, fan switch, thermostat. Also what is the condition of the coolant, could be blocked passages from crud buildup.

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