South Wales Trail Riders

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    geraint

    Posts : 1348
    Join date : 2010-08-31
    Age : 51
    Location : Pentonville

    overheating

    Post by geraint on Mon Jun 02, 2014 9:19 pm

    yamaha dt lc goes straight into the red within 5 minutes of riding/ticking over, tried various doses of anti freeze-no anti freeze
    water pump seems fine took the cap off the radiator and the water was pouring in, felt the bottom hose and water was going through
    does'nt seem to be any major damage to the rad, although it is 27 years old
    any thoughts would be appreciated, as it's doing my nut in
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    Gareth Gates

    Posts : 2563
    Join date : 2010-12-27
    Age : 86

    Re: overheating

    Post by Gareth Gates on Mon Jun 02, 2014 9:28 pm

    weot state is the radiator cap in ?
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    dai 530

    Posts : 587
    Join date : 2012-07-01

    Re: overheating

    Post by dai 530 on Mon Jun 02, 2014 9:47 pm

    Check the temp switch it might be faulty
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    steve

    Posts : 4245
    Join date : 2010-01-26

    Re: overheating

    Post by steve on Tue Jun 03, 2014 2:17 am

    Take the thermostat out.
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    geraint

    Posts : 1348
    Join date : 2010-08-31
    Age : 51
    Location : Pentonville

    Re: overheating

    Post by geraint on Tue Jun 03, 2014 6:19 pm

    radiator cap is fine, no thermonstat on the mark ones and isn't the temp switch just a brass nut in the top of the cylinder head??
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    steve

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    Join date : 2010-01-26

    Re: overheating

    Post by steve on Tue Jun 03, 2014 7:54 pm

    Yep that's the sender take it out and you,l find thee a long brass prong under it about half inch long.
    Has it actually boiled over yet while ridding it?
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    geraint

    Posts : 1348
    Join date : 2010-08-31
    Age : 51
    Location : Pentonville

    Re: overheating

    Post by geraint on Tue Jun 03, 2014 9:10 pm

    no,after boiling the kawasaki on clutch fryers i've learnt my lesson lol!  lol! 
    what could go wrong with just a lump of brass???
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    wolfy

    Posts : 6811
    Join date : 2010-11-30
    Age : 49
    Location : Care Home, but sometimes they let me out

    Re: overheating

    Post by wolfy on Tue Jun 03, 2014 9:20 pm

    The temp switch on the ktm for the fan a common thing to break down Geraint beats me how tho! too.
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    steve

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    Join date : 2010-01-26

    Re: overheating

    Post by steve on Tue Jun 03, 2014 9:32 pm

    geraint powell wrote:no,after boiling the kawasaki on clutch fryers i've learnt my lesson lol!  lol! 
    what could go wrong with just a lump of brass???

    I have no idea but cant be an expensive part or can it? I,d ride it and see it how hot it gets, Wait till it go,s into the red and just feel the rad and cap you should soon be able to tell if its red hot.
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    dai 530

    Posts : 587
    Join date : 2012-07-01

    Re: overheating

    Post by dai 530 on Tue Jun 03, 2014 9:37 pm

    It works on resistance and sends a signal to the temp gauge
    i change loads on cars there cheep as chips for most cars
    pull it out ond put it in hot water and see what happens to the temp gauge if the water is 80 degrees the needle is in the red the switch is fooked
    you can test them with a mulit meter at diffrent temps but you need to know the correct resistance for the switch

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