I hope you used distilled water, Luis............?
If not you can get deposits inside the coolant passages in the engine, and over time it can cause problems......

I'm keen to hear from Silverback what he found before going further, ie blocked thermostats and the like - I strongly suspect a delinquent fan/switch/obstruction though.

 

Hi all

my two cent worth, i had the same problem so here is what id did.

Tested the fan with a current tester, it worked m cahnges the radiator sensor and chaned the thermostat ( did not take any chance, anyway at 15$ it is woth it.

I also put a switch on my fan so i can start it manually when caught in trafic or running at low speed.

and last thing i changed my oil to 10w50 fro 10w40 , I use MOTUL ( incredible oil) semi synthetic based on ester. Bike is running mightily good and the thicker oil for a reason has more capacity to dissipate heat trough the oil radiator. it is also running smoother, because you do not use the bike in cold weather, the oil has a better capacity to protec your motor.

Beleive me i have an happy 88 cane.

 

Hello everyone and a big thanks for all the valuable advice. Problem has now been fixed and was a faultythermostat which was stuck in the closed position.

Thanks

 

EXCELLENT !!
Thanks for letting us know.