Overheating

[AndyPillatt8841]

First of all thanks for the add.
Anybody had a problem with overheating?
My FI light comes on in hot weather in traffic.
I know the oil temp switch that controls the fan is faulty so fan doesn't come on but read that it only comes on in extreme hot conditions anyway.
Is there a thermostat in the oil system that allows oil to flow round the radiator like a liquid cooled engine?
I've read that a problem with the bikes is getting them up to running temperature.
Thanks in advance.

[seth]

Nope not heard of them overheating .
We've had ours filtering in long traffic jams in Europe with the bikes fully loaded with luggage  in temperatures of mid 40°c without any problems .
Have you checked for fault codes to see if there is a problem somewhere on the bike .

[AndyPillatt8841]

No. As of yet I can't find the connector to see any fault codes.

[KiwiCol]

You say above, "hot weather"  how hot are we talking about?  How fast are you going when the light comes on?

The fan can (if all systems working right) come on if you leave it idling in your garage for too long.  That isn't caused by high ambient temperatures, that's caused by lack of air flow over the cooler.  Is your cooler in good nick? Does the air have free passage through the fins?

Now, if you're riding along about 30mph or more on a warmish day and you get the F1 light come up, I'd very much doubt it's because of high oil temp, unless the level is waaaay down.

[gsxbarmy]

What model 14? Have you changed the headers but not had the fuelling adjusted. Later K5 onwards models run very lean and if you fit an Akra or any other exhaust with larger internal headers can overheat due to poor (read weak) fuelling if that hasn't been adjusted with a PCIII or PC-V.

Even if that's not the case, it sounds like it could be a case of your 14 running too weak a mixture - what colour are the plugs?

[Irish in Oz]

You mentioned "i know the oil temperature switch that controls the fan is faulty".

Why don't you replace that first.

[KiwiCol]

First of all thanks for the add.
Anybody had a problem with overheating?
My FI light comes on in hot weather in traffic.
I know the oil temp switch that controls the fan is faulty so fan doesn't come on but read that it only comes on in extreme hot conditions anyway.
Is there a thermostat in the oil system that allows oil to flow round the radiator like a liquid cooled engine?
I've read that a problem with the bikes is getting them up to running temperature.
Thanks in advance.

I re-read the initial question, I think you have your answer there, as Irish said, "why not replace the switch first"   I think your F1 light is coming on because it can't turn on the fan when it wants  to.

Fit a new switch & I reckon all will be well.

[Andre]

Easiest and cheapest thing to do is to get into dealer mode and leave it there while driving. Then, when the FI light comes on, note the fault code.

The fan switch does not, by design, communicate with the ECU. I.e, it does not trigger a fault code when it malfunctions. Fan switch and fan can be tested (see manual page 5-9, 5-10).

[Irish in Oz]

Correct Andre.
The F1 light maybe be turned on by the Engine Oil Temperature Switch which is connected to the ECM.

[AndyPillatt8841]

What model 14? Have you changed the headers but not had the fuelling adjusted. Later K5 onwards models run very lean and if you fit an Akra or any other exhaust with larger internal headers can overheat due to poor (read weak) fuelling if that hasn't been adjusted with a PCIII or PC-V.

Even if that's not the case, it sounds like it could be a case of your 14 running too weak a mixture - what colour are the plugs?

It's a k2. I'll check plug colour tomorrow.

[Hooli]

Correct Andre.
The F1 light maybe be turned on by the Engine Oil Temperature Switch which is connected to the ECM.

I doubt that does it either tbh.

I ran without a working fan for two years, including getting stuck in Switzerland at 37c & my bike got that hot in town that I'm sure I felt it start to nip up. No lights came on at any point.

[AndyPillatt8841]

Thanks for replies guys. Light only comes on going slowly sub 50 mph in 20 degrees heat. normally goes out when going faster making me think its temperature issue.
Fans really small and wouldn't do much tbf but I'll try and bypass the switch and have fan on a separate switch see if that works. Don't think its connected to ecm but could be wrong.
Radiators also a hel one which is meant to be better .

[Irish in Oz]

Correct Andre.
The F1 light maybe be turned on by the Engine Oil Temperature Switch which is connected to the ECM.

I doubt that does it either tbh.

I ran without a working fan for two years, including getting stuck in Switzerland at 37c & my bike got that hot in town that I'm sure I felt it start to nip up. No lights came on at any point.

Seems pointless having the Oil temperature switch (not fan switch) going to ECM to set off a system fault code and not turning on the F1 light to warn of potential problem.

[Irish in Oz]

Anyway there have been mods done but from what is said above it seems the oil is getting hot.

[grog]

Not sure if my fan has ever come on. Have ridden some very hot days, traffic included. Never seen above 85 degrees on temp gauge which is fairly accurate to what laser thermometer reads. Love that air/oil cooled set up.