So.... I have a 2002 Hayabusa ----
Just put the bike back to 100% stock.... when the bike had the full hindle system & power commander --- not once did the bike's temp gauge ever creep up past the center position.
So, now the bike is running just off the stock ECU and stock exhaust w/ stock air filter.
The other day --- sitting in traffic, while idling --- the bike starts to rise past center --- hits the red mark...the fan kicks in.... at which point I was on the highway and started getting air to the radiators --- and she cooled off....
So --- decided to do some testing today to make sure I'm just not paranoid.....
Had the bike up on the stands --- with a fan pointed towards the radiator.....also pulled the plastic to make sure all the throttle bodies vacuum hoses were connected and that the throttle body boots all had a good seal --- everything looked great.
Bike didn't overheat while idling with the fan on it...... I then pulled the fan.....bike after 2 minutes started to creep towards hot....
Fan doesn't kick on until right before the red mark on the gauge....
I then turned the fan back on..... needle creeps back towards normal.
So ---- first question..... does the fan only kick on --- right before the red mark on the gauge? is this right?
2 ---- I'm thinking the thermostat is o.k.... because if it was stuck closed.... wouldn't it not circulate coolant and thus not cool down EVEN with the fan running?
Any other thoughts?
or an I just being paranoid and this is a normal thing when running the stock exhaust?
Just put the bike back to 100% stock.... when the bike had the full hindle system & power commander --- not once did the bike's temp gauge ever creep up past the center position.
So, now the bike is running just off the stock ECU and stock exhaust w/ stock air filter.
The other day --- sitting in traffic, while idling --- the bike starts to rise past center --- hits the red mark...the fan kicks in.... at which point I was on the highway and started getting air to the radiators --- and she cooled off....
So --- decided to do some testing today to make sure I'm just not paranoid.....
Had the bike up on the stands --- with a fan pointed towards the radiator.....also pulled the plastic to make sure all the throttle bodies vacuum hoses were connected and that the throttle body boots all had a good seal --- everything looked great.
Bike didn't overheat while idling with the fan on it...... I then pulled the fan.....bike after 2 minutes started to creep towards hot....
Fan doesn't kick on until right before the red mark on the gauge....
I then turned the fan back on..... needle creeps back towards normal.
So ---- first question..... does the fan only kick on --- right before the red mark on the gauge? is this right?
2 ---- I'm thinking the thermostat is o.k.... because if it was stuck closed.... wouldn't it not circulate coolant and thus not cool down EVEN with the fan running?
Any other thoughts?
or an I just being paranoid and this is a normal thing when running the stock exhaust?
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