Is my curvy hot or not? - Page 2 - SV650.org

25-07-06, 09:36 AM

You can buy a gauge that fits where the oil filler cap goes. That will indicate oil temp. Not used one so don't know how good/accurate they are. Surely it can't be difficult to fit a sensor replacing the one for the warning light that you could connect to a small gauge. Really surprised nobodys done it afore.

25-07-06, 09:40 AM

Dont really think you need a gauge. Within a very short time you get to know your bike and even though I dont ride that much, I can tell within (say) 15 seconds when the fan will cut in.
I know its a bit sad, but that bit of info led me to examine my cooling system not long ago (as the fan didnt cut in when I expected it to), and discover that the plug and socket that activates the fan under the tank had come apart !

25-07-06, 09:54 AM

Hmmmm, I've covered over 50,000 miles on my Sv's and I can never tell when the fan has kicked in, or when it should. You must be very in tune with your bike Mr Banus.

25-07-06, 10:02 AM

petevtwin650 - Although probably ok for indicating ‘setting off’, the filler cap oil temp one won’t do me much good going along.

As for replacement sensor and fitting of gauge, yep that the sort of mod I was expecting someone to have done too (and wanting the details).

Banus – I need to know when I am ready to set of, this will be somewhere around 80deg +-5 water temp. If it has got to the point when the fan is about to kick in means it has got too hot already!! I also don’t want to risk going out when it is say 50deg as this could cause wear problems.

In this sort of blistering heat and going round a track, I really need to know the actual temperature as I won’t see or hear the fan come on and I’d suggest when the overheat light comes on, it is probably to late already!!!

northwind · 25-07-06, 10:09 AM

You could rig a light to trigger from the fan switch? Alternatively, Demon Tweeks sells about 50 different adjusable temperature gauges, they're designed for cars but I'm sure they'd fit. And be very ugly and massive

25-07-06, 10:44 AM

What you worryin about... I find its so rare for the fan to kick in I just don't even think about it... then you can normally hear the fan kick in.

All these gauges are for poofs...

25-07-06, 12:29 PM

When your fan plug comes loose and your bike overheats we'll see who's the poof

Sid Squid · 25-07-06, 12:46 PM

On the SV1000 the fan cuts in at 104 degrees, and even stationary the fan brings the temperature down by 4-5 degrees quickly.

jambo · 25-07-06, 12:54 PM

Quote:

Originally Posted by Blue_SV650S

In this sort of blistering heat and going round a track, I really need to know the actual temperature as I won’t see or hear the fan come on and I’d suggest when the overheat light comes on, it is probably to late already!!!

Just to put this into perspective. Here's what a Fan does: It draws air through the radiator grills (mostly only one part of it). Nothing more, nothing less. If you are sat in traffic and there is no airflow then you start getting issues shifting the heat from the radiator as all the air arround it is already hot. Enter the fan drawing cold air through it.

When you are moving the Fan will almost never cut in as there is already airlfow. On the track the Fan would make no diference at all as there's already far more air being forced through the rad than it could provide anyway.

To illistrate:
Kwak ZX6R -
Normal roads A-B roads: ~80C (Fan not bothering to come on)
In Town in Summer : Up to 108C (The Fan is woking to keep that down)
On track: ~69C (fan not bothering to come on)

The fast airflow more than made up for the extra work the motor was doing

25-07-06, 02:49 PM

Jambo- Good for you, I’ve had bikes (with a gauge) hit the 100deg+, in motion.

I don’t want to presume everything will be ok, or wait until my overheat light comes on (like I said, by that time it could be to late), I’d like to know how my SV is coping temperature wise whenever I like. How do I even know the thermostat isn’t seized shut? Like I said I know the rad efficiency is compromised as some of the fins are bent over. That might be ok if I was using it on the road, but unless the SV is overcooled as standard I could run into problems when spanking it on track?!!?

Id firstly like to know that it is up to temp before I set off and be able to monitor it when in progress. That way I can detect if it is struggling and take appropriate actions.

You can’t talk me out of this I want to know the temp!!

Northwind - motorworld do gauges for £30, that come with a sender, does anyone know what thread/size the SV temp sensor is, hopefully they will be the same/standard and I can swap them over??

25-07-06, 09:40 AM	#12
Banus Guest Posts: n/a	cool ! Dont really think you need a gauge. Within a very short time you get to know your bike and even though I dont ride that much, I can tell within (say) 15 seconds when the fan will cut in. I know its a bit sad, but that bit of info led me to examine my cooling system not long ago (as the fan didnt cut in when I expected it to), and discover that the plug and socket that activates the fan under the tank had come apart !

25-07-06, 10:09 AM	#15
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	You could rig a light to trigger from the fan switch? Alternatively, Demon Tweeks sells about 50 different adjusable temperature gauges, they're designed for cars but I'm sure they'd fit. And be very ugly and massive __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

25-07-06, 12:46 PM	#18
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	On the SV1000 the fan cuts in at 104 degrees, and even stationary the fan brings the temperature down by 4-5 degrees quickly. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

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25-07-06, 09:36 AM	#11
petevtwin650 Guest Posts: n/a	You can buy a gauge that fits where the oil filler cap goes. That will indicate oil temp. Not used one so don't know how good/accurate they are. Surely it can't be difficult to fit a sensor replacing the one for the warning light that you could connect to a small gauge. Really surprised nobodys done it afore.

25-07-06, 09:54 AM	#13
petevtwin650 Guest Posts: n/a	Hmmmm, I've covered over 50,000 miles on my Sv's and I can never tell when the fan has kicked in, or when it should. You must be very in tune with your bike Mr Banus.

25-07-06, 10:02 AM	#14
Blue_SV650S Guest Posts: n/a	petevtwin650 - Although probably ok for indicating ‘setting off’, the filler cap oil temp one won’t do me much good going along. As for replacement sensor and fitting of gauge, yep that the sort of mod I was expecting someone to have done too (and wanting the details). Banus – I need to know when I am ready to set of, this will be somewhere around 80deg +-5 water temp. If it has got to the point when the fan is about to kick in means it has got too hot already!! I also don’t want to risk going out when it is say 50deg as this could cause wear problems. In this sort of blistering heat and going round a track, I really need to know the actual temperature as I won’t see or hear the fan come on and I’d suggest when the overheat light comes on, it is probably to late already!!!

25-07-06, 10:44 AM	#16
Grinch Guest Posts: n/a	What you worryin about... I find its so rare for the fan to kick in I just don't even think about it... then you can normally hear the fan kick in. All these gauges are for poofs...

25-07-06, 12:29 PM	#17
Black Rider Guest Posts: n/a	When your fan plug comes loose and your bike overheats we'll see who's the poof

25-07-06, 02:49 PM	#20
Blue_SV650S Guest Posts: n/a	Jambo- Good for you, I’ve had bikes (with a gauge) hit the 100deg+, in motion. I don’t want to presume everything will be ok, or wait until my overheat light comes on (like I said, by that time it could be to late), I’d like to know how my SV is coping temperature wise whenever I like. How do I even know the thermostat isn’t seized shut? Like I said I know the rad efficiency is compromised as some of the fins are bent over. That might be ok if I was using it on the road, but unless the SV is overcooled as standard I could run into problems when spanking it on track?!!? Id firstly like to know that it is up to temp before I set off and be able to monitor it when in progress. That way I can detect if it is struggling and take appropriate actions. You can’t talk me out of this I want to know the temp!! Northwind - motorworld do gauges for £30, that come with a sender, does anyone know what thread/size the SV temp sensor is, hopefully they will be the same/standard and I can swap them over??