engine getting hot

[mick007]

finally got bike going.im in Australia and its quite hot .my engine got to about 3/4 on the guage(it's a 98 model)and the fan did not operate.coolant is new.any ideas ?

[fabiostar]

fan switch?
air lock
thermo stuck closed?

id be starting with those first of all

[Pete.L]

fan switch?
air lock
thermo stuck closed?

id be starting with those first of all

Or the Fan Fuse. They have been known to blow for no apparent reason or if something stops the fan from rotating.

[8541Hawk]

I have also seen someone incorrectly attach the ground wire to the frame instead of the radiator.......that one took a sec to find....lol
Also make sure the fan blades turn freely....there have been time when some debris gets stuck in the fan

[Cadbury64]

The fan should come on from about halfway on the gauge (corresponding to around 100C). As suggested above, check the fan blades turn freely, I had a stone jammed in mine and that caused the fuse to pop when it tried to run. The fan motor always has a live 12v feed, the thermoswitch connects up the earth path to make it run.

I havene't found my VTR to run hot at all (unless stuck in traffic) so if yours is getting hot while moving, there might be other issues like a jammed thermostat, faulty radiator cap or air in the system. If the hose to the expansion tank gets a hole in it, that will cause air to get sucked back in as the system cools down.

[mick007]

thanks gents will check all those things

[mick007]

cheers