January 19th, 2014, 10:08 PM | #1 |
ninjette.org member
Name: Peter
Location: Melbourne
Join Date: Dec 2013 Motorcycle(s): gpx 250 Posts: 85
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Great way to test your thermostat without taking it off the bike.
Just thought I'd share my test findings. Feel free to hang crap on my conclusions if you want
Just finished testing the thermostat on my GPX 250 as I had suspicions it wasn't opening. I bought an Automotive DMM with inductive pick-up for this job which made it really easy as it measures temperature as well. Once the bike had warmed up I measured the temp of the thermostat housing which was reading about 76 degrees Celsius or 168.8 Fahrenheit when the thermofan kicked in. The workshop manual acceptable temperature range for thermostat to open is 177 -182 Fahrenheit so I figure the thermostat is still working well. I can thank the multi meter with temperature probes for helping with this job as I didn't have to pull the thermostat out of the radiator to check the temperature so purchasing one is a must if your doing any maintenance on your bike as it reduces your workload if your lazy like me. Of course if the thermostat housing is giving out readings well above 182 Fahrenheit then you've started to cook the engine....
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January 20th, 2014, 01:18 PM | #2 |
ninjette.org member
Name: Robert
Location: South of you blokes.
Join Date: May 2013 Motorcycle(s): '92 GPX 250 (Gone and replaced with '08 V-Strom), 2005 Suzuki C50. Posts: 186
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There is a temp gauge on the dash, keep an eye on it as the engine warms up, you will see if your thermostat is working.
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January 21st, 2014, 01:55 PM | #3 |
ninjette.org member
Name: Peter
Location: Melbourne
Join Date: Dec 2013 Motorcycle(s): gpx 250 Posts: 85
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The purpose of the test is to gauge if the thermostat is operating within the correct temperature range according to the workshop manual. I thought the coolant was getting way to hot before it was opening and the bike was cooking a bit too long. Plus I don't trust the gauges to be accurate.
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January 21st, 2014, 05:55 PM | #4 |
ninjette.org certified postwhore
Name: Justin
Location: Florida
Join Date: Aug 2012 Motorcycle(s): Ninja 250 2001 Posts: A lot.
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It'll never read if coolant doesn't touch it also...
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