Oil cooling fan?

[Michael Whitney]

I noticed that the GSX 1400 has a cooling fan behind the oil cooler. Obviously it's there to cool down the oil and/or engine more but just wondering out of interest if anyone knows when it'll turn on? I assume it's temperate controlled but does it only come on when stationary or just when the engine gets above a certain temperature? Also why does it need a cooling fan, is the standard air/oil cooling not sufficient enough to cool such a big engine and if so why didn't Suzuki just use water cooling?

[Andre]

According to GSX1400 service manual:

Cooling fan thermo-switch operating temperature
Standard:
(OFF→ON): Approx. 120°C (248°F)
(ON→OFF): Approx. 108°C (226°F)

(see reply #31 here: http://gsx1400owners.org/forum_test/index.php?topic=1232.30 )

The air/oil cooling works very well. For the fan to come on, it has to be quite hot outside and the going slow/standing. Lots of 14 owners have thought their fan was defect because it hardly ever comes on.

[Hooli]

Only ever noticed my fan kick in when stuck in traffic on the south coast of spain for a good half hour.

[Tony Nitrous]

If you live in the UK I'd be surprised if you saw temp's high enough to worry a GSX1400.

Mine runs just fine and I've never noticed the fan come in.

[gsxbarmy]

Mine only ever kicked in once on an absolute red hot day waiting in queues to park for Brightona.

[KiwiCol]

Red hot day in UK, hmmmm  that'd be mid 20's wouldn't it?

[Tony Nitrous]

Red hot day in UK, hmmmm  that'd be mid 20's wouldn't it?

I think the UK hit 37 degrees C once!
Everyone thought they were going to die... 

[Tony Nitrous]

If your concerned about the fan on the oil cooled GSX1400, think about the original oil cooled Bandit 1200.

A favourite for hooligans, stunt riders and tuners.
Many get a hard life and stand a lot of abuse.

The oil cooled Bandit 12 doesn't even get a fan.

[DanGSX]

When I first got my GSX14, I asked this question on the old forum as I was concerned mine was broken.

Although I've only owned my 14 for just over a year, I still don't know what the fan sounds like. I hasn't ever come on, even with sitting in traffic on a hot day...I think it's a case of what @Hooli said - You'd need Spanish heat and a lot of standing traffic to even get the fan to turn on.

Just amazing that they can withstand such temperatures and keep going like it's nothing.

[Big Geordi]

Took my Fan off Both 14,s no problems!!

[Hooli]

Oh tell a lie, I have seen the fan come on another time. When it was parked in a garage idling for about 45mins as I had my first go at balancing throttles.

[Jeykey]

Living in Lisbon, Portugal, where temps can get to 40ªC in Summer I´ve never heard or seen the fan come on. I do some city traffic in rush hour and never heard it ! I still prefer my water cooled modern Vespa for rush hour but that´s because of the heat I avoid on my legs and it´s better for runarounds.