As anyone who knows me knows, I hate troubleshooting electrical problems, so I'm appealing for help.   I’ve already hit the Search function which helped me with steps to investigate but a solution has eluded me so far.

Bike is a 2002 Gen 1, 53k miles.  Yesterday I started her up just to circulate fluids and make sure all was well before advertising her for sale.  Last time ridden was a couple of weeks ago and all was fine then.

On start-up, I’m 99% sure that the coolant fan came on as it usually does soon after starting.  Went off with gear selection and I then proceeded to hold the revs around 3k rpm and blip the throttle to get the motor up to temperature.  Usually when I do this I let the coolant get to around 90C and then turn off but this time I decided to let her run to check that the fan came on when the temp reached 98 - 99C.  It didn’t.  The Multigauge coolant temp continued to climb to 104C at which point the coolant overheat light came on - as it should - and I shut her down.

Today I started troubleshooting by applying 12v direct to the fan.  It works fine.

The fan fuse is good.

Applying 12v to the relay contacts I got a ‘click’ suggesting it’s working correctly.  I also substituted another relay and that made no difference to the fan operation. I’m calling the relay itself good.

Earthing the green/black terminal on the relay connector turned the fan on, suggesting the wiring from relay to the fan is OK. 

The temperature readings on the Multigauge were exactly as they’ve been since I fitted the gauge.  Coolant temp rose normally and the overtemp light came on as it should at an indicated 104C.  This suggests that the coolant temp sensor in the thermostat housing is also good.

The coolant overtemp light comes on briefly at ignition on as it should.

However, the fan no longer comes on soon after start with the revs held at 1500rpm plus and the coolant fan does not kick in when the temp reaches 98 - 98C.

I’m stumped at the moment and the only thing I haven’t checked yet is the combination unit in the speedo which should be activating the fan relay when the temp gets too high.  I believe it also has a timer function to run the fan at start-up.

Any ideas, experiences, hail Mary guesstimates would be much appreciated.

Mike

Michael Dunlop will be on a Duke for this years NW200 and the TT, riding a V4R Panigale for PBM(Paul Bird Motorsports). This is quite interesting as although they've stamped their authority on short circuit events, Dukes haven't in the past been famous for their longevity. They have always got a big cheer when finishing endurance races.

Interesting, particularly about having tyres that are too good for your riding. https://www.youtube.com/watch?v=01YlwusCSlE

When it's time to change a slipping  clutch do you change just the friction plates or must the steel plates be changed as well? 


Cheers

Looking for the lengths of the various dogbone lengths that alter the ride height for the fzs600.
Have searched this forum but not found anything definitive.
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However I’ve got a few questions and TBH don’t want to phone the US yet as it says on his web page contact only by phone I’d rather do it when I’m in a position to send it and that will be when I get the bonus which we haven’t got a date on yet.


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Any help greatly appreciated

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hi all soglad i found this site
am a r1 rider but brought fazer 600 for every day stuff from uk

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