malcolm Posted March 26, 2016 Report Share Posted March 26, 2016 Just wondering if all thermostats for a 125cc trials bike activate the fan at similar temperatures. I have a Sherco 125 2015 and wondered if a thermostat from another bike would be suitable, or are all thermostats specific to the bike they are fitted. Quote Link to comment Share on other sites More sharing options...
bilks Posted March 26, 2016 Report Share Posted March 26, 2016 Normally specific.some fit in the rad, some inline with the water hoses,but as you know yours is in top of the rad. Quote Link to comment Share on other sites More sharing options...
malcolm Posted March 27, 2016 Author Report Share Posted March 27, 2016 Thanks bilks. Are they generally set to switch on the fan circuit at a simulator temp? Quote Link to comment Share on other sites More sharing options...
peterb Posted March 27, 2016 Report Share Posted March 27, 2016 Generally, the thermostats have their temperature range stamped on, eg: 71/66 that is, at 71C the switch contact is made and at 66C the contact "drops out" such that the fan would turn on at 71C, then keep going until the water temp reduced to 66C. You can check the thermoswitch out by immersing the switch into a cup of water with a thermometer, that you can use for a stirrer, then add hot and cold water to check the operating range. Best to stay with the standard range thermoswitch. Bye, Peter B. Quote Link to comment Share on other sites More sharing options...
malcolm Posted March 28, 2016 Author Report Share Posted March 28, 2016 Cheers Peter Quote Link to comment Share on other sites More sharing options...
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