Running temp on sv650

barnesy213 · Two Stroke Sniffer Joined: 24 Nov 2014 Karma :

Basically I'm just wondering what temp it's supposed to run at. In the book it says if it gets to 120 let it cool but max it's got to is 100 but even that's high. Just wondering what it should be and if it coolant needs changing. Thanks

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

If it's an injected SV then 100 is fine. My TT600 used to run at about 107 in hot weather.
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RhynoCZ · Super Spammer Joined: 09 Mar 2012 Karma :

100°C is not high, the whole cooling system is pressurized, so the water in the coolant won't boil till it gets above certain temperature. If everything works. Thumbs Up

Changing the coolant won't help. Check the fan works, just rev it in neutral long enough to get the fan to kick in. If it does, then everything is alright and you do not need to worry about it.
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Az · World Chat Champion Joined: 16 Apr 2013 Karma :

My GSXR sits at 95-105 in the city when commuting in this weather, I wouldn't worry Thumbs Up

robertw95 · Trackday Trickster Joined: 22 Nov 2014 Karma :

On a normal day my sv runs between 75-80. Even on hot days doesn't get much over this apart from traffic where it may creep up to 100. Never heard fan kick in yet...
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07 Dt125r, sv650s k8, zx6rr 04

kramdra · World Chat Champion Joined: 28 Oct 2010 Karma :

Thermostats are usually closed below 82c (too cold for engine) while fan usually cut in at 110c. You should let it get hot/fan come on occasionally as it will evaporate any water in the oil.

In winter my cbr6 usually stays around 50, not great for the oil especially with short journeys. So to make it run hotter I have used a radiator cover the last year or two.

Polyester casting tape is very good for DIY radiator covers, and many other bike things Thumbs Up

Bought a box of 10 after breaking my leg.

barnesy213 · Two Stroke Sniffer Joined: 24 Nov 2014 Karma :

Yeah it's an FI model n ok thanks guys. Don't suppose if the idle revs are supposed to be between 1k and 1,500 but mines closer to the 1,k mark n sounds like it's going to do die lol ( hasn't yet ) but sounds like it lol

barnesy213 · Two Stroke Sniffer Joined: 24 Nov 2014 Karma :

[quote="robertw95"]On a normal day my sv runs between 75-80. Even on hot days doesn't get much over this apart from traffic where it may creep up to 100. Never heard fan kick in yet...[/quote]

That's the same with mine

Taught2BCauti... · World Chat Champion Joined: 12 Jan 2012 Karma :

The thermostat is supposed to open and close to help the engine get up to it's ideal running temperature, but when thermostats fail, they usually fail in the open position (for safety) so the bike never makes it past luke-warm.

Most engines run best at over 100°c, which is why the cooling system is pressurised - to prevent the coolant boiling over.

Try a new thermostat, together with a system flush and new coolant.
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