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  1. #1
    nickflo7's Avatar
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    removing the thermostat off my 94 sl 750

    Just wanted to ask how safe is it to remove the thermostat? it was froze due to sitting for a few years the guy said that sold it to me and iv read up and some people said it wouldnt hurt just wanted to be sure


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Texas waters should be reasonably warm, so the thermostat is optional on the Fuji engines.

  3. #3
    nickflo7's Avatar
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    Sweet and my mikuni fuel pump is in so gonna do last minute adjustments and pray LOL thanks again

  4. #4
    nickflo7's Avatar
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    Sweet and my mikuni fuel pump is in so gonna do last minute adjustments and pray LOL thanks again

  5. #5
    bwhitsonjr's Avatar
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    How do you know if your thermostat is bad? I also live in Texas Southeast near coast and I just pulled mine off last night. Looks like its ok but don't want to run the risk of cooling issues. What to do?

  6. #6
    BlueFishCrisis's Avatar
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    Quote Originally Posted by bwhitsonjr View Post
    How do you know if your thermostat is bad? I also live in Texas Southeast near coast and I just pulled mine off last night. Looks like its ok but don't want to run the risk of cooling issues. What to do?
    Drop it in a pot of water and boil. Should open around 140 +/- degrees if I remember correctly....

  7. #7
    bwhitsonjr's Avatar
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    That's interesting but ok..... I'll give it a try.

  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Arrow How to check the stock 143F thermostat for correct opening temperature

    Quote Originally Posted by bwhitsonjr View Post
    That's interesting but ok..... I'll give it a try.
    Well, you don't actually boil the water. Just warm the water on the stovetop while watching the temperature using a thermometer in the water. Thermometer should not touch the bottom of the pot.

    When the thermometer shows just over 140F the thermostat should be visibly opening. A handful of degrees above 140F and it should be fully open.

    In the attached photos you can see light in the gap where the thermostat valve has opened.
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    Last edited by K447; 03-28-2013 at 10:37 AM.

  9. #9
    BlueFishCrisis's Avatar
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    Quote Originally Posted by K447 View Post
    Quote Originally Posted by bwhitsonjr View Post
    That's interesting but ok..... I'll give it a try.
    Well, you don't actually boil the water. Just warm the water on the stovetop while watching the temperature using a thermometer in the water. Thermometer should not touch the bottom of the pot.

    When the thermometer shows just over 140F the thermostat should be visibly opening. A handful of degrees above 140F and it should be fully open.

    In the attached photos you can see light in the gap where the thermostat valve has opened.
    Sorry - I set my stove to boil all the time. Kinda like setting a phaser to stun.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by BlueFishCrisis View Post
    ... I set my stove to boil all the time. Kinda like setting a phaser to stun.
    That would be Phaser set to KILL

    Click image for larger version. 

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