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125 Fan Stays On

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I have noticed that our 125 runs as soon as the bike is started

I presume this is not normal

should I change the stat or is it ok to run all the time ?

Edited by ar22

I have noticed that our 125 runs as soon as the bike is started

I presume this is not normal

should I change the stat or is it ok to run all the time ?

sounds like someones wired around the stat ,would be best to correct the problem before it causes a new problem

  • Author

sounds like someones wired around the stat ,would be best to correct the problem before it causes a new problem

looked at the wiring and it all looks untouched

going out today, will see if it stays on all the time

looked at the wiring and it all looks untouched

going out today, will see if it stays on all the time

stat could be continuously connected inside but not come across that before pull one wire off it n it should stop if its the switch

I have noticed that our 125 runs as soon as the bike is started

I presume this is not normal

should I change the stat or is it ok to run all the time ?

I would check the Thermo-Switch in the radiator. Unplug one wire and see if the fan stops. If so, the switch may be shorted to run all the time.

I would check the Thermo-Switch in the radiator. Unplug one wire and see if the fan stops. If so, the switch may be shorted to run all the time.

you have just reworded what has just been written in previuos reply

  • Author

you have just reworded what has just been written in previuos reply

now now boys, any help is good help

just put multimeter across switch

there is continuity when cold

switch is goosed

better get one ordered

thanks for all the replies

Not unheard of, my 290 has this issue every now & then

  • Author

got the new switch

havnt removed the old one yet

any idea how its fitted

looks like it just pops in

does the old one just get levered off with a screw driver

If the switch is in the radiator it screws in, if it's in a housing midway along the the hoses then to remove it you need to open up the metal clip piece then pull out the switch.

Replacing it is as simple as pushing back into the rubber sleeve & closing the clip back up. Did the switch come with a new sleeve & clip or do you need to reuse the original?

  • Author

If the switch is in the radiator it screws in, if it's in a housing midway along the the hoses then to remove it you need to open up the metal clip piece then pull out the switch.

Replacing it is as simple as pushing back into the rubber sleeve & closing the clip back up. Did the switch come with a new sleeve & clip or do you need to reuse the original?

its the one for the pipe

yes it came with the housing, thats what confused me

initially I presumed, open the two clips and pull it out (or screw it out ?), then it arrives complete and no obvious way of the housing attaching

seems to have a lipped o ring which must just pop into the hose fitting

Sounds to be how I remember, use all the new parts to be safe.

When you open the clips you need to twist it to remove it

  • Author

Sounds to be how I remember, use all the new parts to be safe.

When you open the clips you need to twist it to remove it

stat working, loom removed and new kill switch fitted

happy now

cheers

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