engine never warms up properly

[simon1221]

my bike cools down (according to the display) after goin flat out for a few minutes, and i am afraid to push it too far incase it seizes up,

it hardly ever goes over the minimum temperature of 40 degrees on the display

in town however it does warm up slightly, but not enough to keep it warm for the remaining journey

any help is appreciated

[divuk83]

It will cool down once you start moving if you have been riding slowly or sat in traffic for a bit as it is a liquid cooled bike and will cool as the airflow over the radiator increases when you start moving quickly. If there is a radiator fan check to see when its running and see if there is a way to fit a manual switch to it as most come on when its really hot automatically. For example the thermostat on mine turns the fan on when it hits about 95 degrees, which is a bit to hot! I have fitted a switch to the fan so I can turn it on whenever I hit traffic or its begins to heat up, Stopping it from ever getting that hot.

Dave

[simon1221]

according to the temperature display, the bike never goes higher than 80degrees, even in streets sitting in traffic etc

[simon1221]

bump

[RickHolt]

Don't they partly cover the air intakes on sports bikes in really cold weather because they dont need as much air to cool down? Could be something to do with that. Dunno though.

[Kickstart]

Hi

What bike is it?

Many liquid cooled 2 strokes do not have a fan.

My guess would be that a previous owner has removed the thermostat in a dodgy attempt to stop an overheating problem.

All the best

Keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[alains]

just check i you've got a thermostat on the water circuit , may be it's missing
____________________
the worst day fishing is better than the best day working

[simon1221]

the bike is a gilera dna, i doubt the previous owner would have removed it he didnt seem to be mechanically minded and had it serviced twice, but i doubt if the garage did it properly as i keep on finding holes with no screws in

i went to a bike shop today and asked the guy in there and he said its fine as long as it is not too hot, but i still think that the engine needs to be warm, it doesnt even register on the temperature guage in cold weather or when its raining

i am getting a bit pissed off with gilera anyway as the manufacturers manual is useless and the haynes one does not come out until sept - october

[loply]

If the engine is running and youre riding it, and youve ran it for a few miles, its not going to cool down and seize...

Besides which, as I understand it, seizing is most likely caused by oil flow and viscous old, which oil wont be after a while running the engine.

[simon1221]

is it ok to run it coldish? i thought that they had to be at 80 degrees to run preoperly

[simon1221]

is it alrite if the engine is coldish while running?

ok it wont sieze up but doesnt it have to run between 80 - 90 degrees for it to work properly?

i realise this is no longer a drastic problem