Question about 2001 Yamaha WR 426 F

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Yamaha 01 wr 426 overflow tank & hoses

I have the tank installed. I'm not sure were the two hoses go? I know one hose connects from the radiator to the overflow tank but witch connection? When I got all the parts it was the tank two hoses a couple squeese clamps and a frame bolt. All parts are oem to make things smoother. The two connections on the tank are located at the top where the cap is and at the bottom of the tank. I know this is something simple but I don't turn wrenches for a living, I swing a hammer.

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Well the first from your radiator goes on the bottom of the tank.the shorter hose goes on top that is just an overflow outlet hose. hope that helps.

Posted on Apr 23, 2009

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What cause lower radiator hose to collapse after cool down


Hi Larry:
Good observation. Not too many people would spot that.
When the engine is hot, the coolant is hot and expands. At the filler cap for the radiator, there will be a hose that goes to the overflow tank. As the coolant fluid expands, it flows through thie tube into the overflow tank.
When the engine is turned off, as it cools, the volume of coolant in the engine and radiator contracts, and is supposed to suck fluid back from the overflow tank.
I'm suspicious that something is preventing this from happening so the vacuum in the engine coolant system is collapsing the hose.
WHAT TO DO?
- Check the radiator cap. Make sure it is functioning correctly. Make sure that it is correctly installed and screwed all the way on.
- Check the coolant overflow hose. Make sure it is not plugged.
Odds are that you will find the problem quite quickly.
Cheerfuls.

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2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
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5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
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7. Fuel line to carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
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Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
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15. Faulty fuel pump or fuse or relay.
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For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Hi, Anonymous and the usual suspects are:
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Hi, Anonymous and the usual suspects are:
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Not sure I understand the question, but there should be a small hose from the actual radiator to the overflow tank. Then a small hose from the overflow tank to allow extra coolant to exit.

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Hi, Rick and the usual suspects are:
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For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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