My bike temperature is always Hot!

[Runner07]

Hi,

On my bike, next to the speedo metre, milage clock etc there is a temperature control area. Mine is always on H (Hot) Sorry to be a noob, but could someone tell me why that is lol.

Ive thought about it and think it could be that i need to buy coolant. But not really sure.

Thankyou in advance.

[Davo]

Telling us what bike it is would be a good start! How old is the bike?

[Kal]

Always? even when the bike has only just been turned on?
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Kal...
I Like To Hoon It Hoon It I Like To Hoon It Hoon It I Like To Hoon It Hoon It Ya Like To (HOON IT!).
1984 GB250 Clubman,1983 CB250N Superdream, 1999 GPZ500S

[Runner07]

Its a Gilera Runner SP50 2002 Model. when i turn the bike onfirst thing in the mourning the temperature line will rise very slowly towards (H) and when ive been riding it for an hour or so the line will hit the H.

[Wafer_Thin_Ham]

Air lock in the cooling system or insufficient coolant in said system. (if it has one)
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[Runner07]

[Wafer_Thin_Ham]

Well if you don't shack the bike or let the cooling system settle when you are filling it from empty you can get airlocks in it which mean that it's not water all the way around so it'll run hotter.

MS paint diagram to follow.
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[Runner07]

[Kal]

Check levels of the coolant and the oil.

Not sure about exactly how the Gilera is set up - but it should be easy enough to check.

On most of the watercooled Hondas I've ridden there has been a little resevour that with the minimum and maximum marks.

The procedure for oil is easy enough - just run the engine to warm then shut it off and then check the dipstick or the oil window in the crank casing (depending on which the Gilera has) - again it should be somewhere between the minimum and the maximum line

A quick note on chemical coolants - some of them react with others so if you are topping it off and aren't sure what fluid is in it already drain the lot or just top it off with distilled water.
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Kal...
I Like To Hoon It Hoon It I Like To Hoon It Hoon It I Like To Hoon It Hoon It Ya Like To (HOON IT!).
1984 GB250 Clubman,1983 CB250N Superdream, 1999 GPZ500S

[GeorgeCBR]

I used to have a Silver gilera runner, 2002 model aswell, the coolant cap is on the right hand side, opposite to the petrol flap. Take the badge off the front, underneath is a screw, remove the screw and take the front middle panel off, you should be able to check you coolant from there, it should be anywhere between the min/max line.
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|| Ride - Kawasaki Z1000 & Honda Bali 50 || Theory - Passed || Practical - Passed ||

Previous || Suzuki Bandit 600N - Honda CBR 125 - Gilera Runner 50

[Runner07]

Ok, so basically the reason why my bike is always hot is because of the lack of coolant. GREAT. At least i know its nothing sereous.

Thanks for all yourhelp.

So i can either buy some coolant. Or if im not sure what liquid is in there already (Which idont) then use distilled water?.

thanks

[GeorgeCBR]

If youre not sure what youre doing, get down your local bike shop, and get some premix coolant. Easiest way. Bung it in, but make sure the engines cold when you do put it in, helps it to mix.
____________________
|| Ride - Kawasaki Z1000 & Honda Bali 50 || Theory - Passed || Practical - Passed ||

Previous || Suzuki Bandit 600N - Honda CBR 125 - Gilera Runner 50

[Kal]

If you aren't going to drain the cooling system down and don't know what coolant has been used in it then you can't go wrong with distilled water.

Oh and the chemical coolant? It's one of those nasty substances that we are supposed to take to the tip rather than get rid of downt he drain.
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Kal...
I Like To Hoon It Hoon It I Like To Hoon It Hoon It I Like To Hoon It Hoon It Ya Like To (HOON IT!).
1984 GB250 Clubman,1983 CB250N Superdream, 1999 GPZ500S

[Runner07]

Hi all again,

Ive empted the coolant tank becasue i wasnt sure what was in there. And then added new Coolant. However the temperature gauge still says H.

Any reason why this could be? The man at the bike shop said that it could be that the sensor is broken and the bike is probably cool. Or it needs Bleeding?

Any help would be very greatful thankyou!

[super-duper-moto]

I used to have the same problem on my sp50 '05plate'
I dont think its anything to worry about, and only started happening to me after I got it derestricted? Dont think thats anything to do with it but stranger things have happened!
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Current bike: FZ6 Fazer (08) (2008)
Previous bikes: VFR400 (D) (1987), CG125 (Y) (2001), Gilera Runner 50cc ('05)

[Runner07]

Ok thanks. Well did u end up sorting it out? Its buggin me a little becasue if the bike is readin correctly then its getting hot and could do damage in the long run.

[super-duper-moto]

Never sorted it to be honest and it didnt do any damege im aware of
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Current bike: FZ6 Fazer (08) (2008)
Previous bikes: VFR400 (D) (1987), CG125 (Y) (2001), Gilera Runner 50cc ('05)

[Runner07]

Ok. Well i may leave it then. but if theres a cheap way of cooling it down then im gonna do it. Will bleeding it work?

[SilvaRizla]

Bleeding it will get rid of any air in the system, this will definatley help. As far as I know there will be a little screw on top of the radiator, start the bike and loosen the screw slightly until a bit of fluid comes out, then tighten

Silva
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[deanoet]

[truslack]

Check your brakes and bearings, if the wheels have resistance on them, 50's tend to use a lot more power to do anything, and therefore overheat.
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Current: Suzuki RG 125 Gamma, Honda H100, Triumph Tiger 800XC, Suzuki SV650 (minitwin)

[konsoli]

if the coolant is at the correct level, and it's getting through..

[Runner07]