Question about 2004 Honda CBR 125 R

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Temp gauge going up too high on honda 125 bike

Bike owned since Oct, has been fine until recently the temp gauge goes up regardless of speed or distance until it is nearly at overheat point. Have checked coolant level and oil, both seem ok.
On some models there is a fan, but I don't think this one has? Not sure what to check next to try and solve the problem?

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  • mike_bk251 Jan 26, 2009

    Thanks for the advice, I might just play safe and renew the thermostat altogether. YoIur advice reminded me of some of my old cars and similar probs I had with them.




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Hi m8,,u need to test the thermostat, usually only has one wire running off it,,and sits behind cylinder head or in the rad its self,, u can test it by boiling up some water and dippin the thermostat in ,, and seein if it moves,, if u have the stud version of thermostat,then a tester will be needed,, red wire onthe live connection of thermostat and black tester wire just touchin the body of the thermostat,,the needle should move slowly up reading ,after being dippt in hot water,,if no readings or movement then u will have to replace it,,also check that the wires on the temp gauge are not corroded,

Posted on Jan 23, 2009

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