2009 Suzuki boulevard M90 overheating issue
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Thread: 2009 Suzuki boulevard M90 overheating issue

  1. #1

    Default 2009 Suzuki boulevard M90 overheating issue

    So I was riding and my bike started over heating. When I stopped at a gas station it wouldn’t start so I had to jump it with a battery pack. Then I let it run for about 15 mins when my radiator fluid started pouring out of my bleeder valve. I let my bike cool down then started it back up everything looked fine. Then it over heated again. So I am able to ride it for about 20 mins before my bike starts over heating. Any suggestions? What could be the issue?

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  3. #2
    Very Active Member UVATom's Avatar
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    Check the thermostat or feel the hose that goes to the radiator coming from the thermostat. It should get warm while idling after five or six minutes. It should continue to get hotter and hotter until the fan cuts on. If neither of these happens then you have a bad thermostat and a bad fan.

  4. #3

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    Ok I did not check the hose yet I hear the fan go on but I will recheck the fan. I did start it and run it for about 20 minutes and the engine block started smoking. I am really confused

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  6. #4
    Very Active Member UVATom's Avatar
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    Does it have antifreeze in the radiator. If the thermostat is froze it will overheat. The hose to check is number 13 at the link below. Should be right below the tank on the left side. You should not let it run until the engine is smoking.

    https://www.bikebandit.com/oem-parts...1500/o/m147508

  7. #5

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    Ok I will be back home tomorrow and I will check it out really do appreciate you helping.

  8. #6

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    Is it #13 under cooling system?

  9. #7
    Very Active Member UVATom's Avatar
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    Yes the radiator hose section under OEM #13. First make sure there is antifreeze in the radiator. Then crank it and feel that hose to see if it gets hot after awhile (not 20 mins). The thermostat is #3. If you take out the thermostat and put it in boiling water it should open as the water gets hot. There are videos on YouTube to show you how. If the thermostat works then you have a bad water pump or a clogged radiator.

  10. #8

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    How long before the fan turns on because I ran it for a while the hose is getting hot but the fan is t on after running it for atleast 15-20 mins

  11. #9

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    The fan isn’t on and the exhaust pipe has fumes coming out of it near the engine block

  12. #10

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    So the hose got hot. But the fan did not turn on and I ran the bike for more than 10 mins. I did see fumes come out the exhaust pipe where it is attached to the engine block.

  13. #11
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    Mine can take over 20 minutes for the fan to kick in when left to tick over

  14. #12
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    Mine can take over 20 minutes for the fan to kick in when left to tick over

  15. #13

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    So the fan not turning on right away is not an issue?

  16. #14
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    The fan should only come on when the temp gets up to around 105° C which should be around 15 to 20 minutes if sitting still.

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