overheating issue - Yamaha Raptor Forum
 
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post #1 of 7 (permalink) Old 10-21-2019, 12:11 PM Thread Starter
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overheating issue

Everyone thanks for the advice in advance. My Raptor 700 it's a 06 it overheats in the light comes on in less than 10 minutes. I am thinking is one of two things the water pump or the head gasket. I am leaning towards the water water pump because when you take the thermostat out it still heats up in less than 10 minutes and the light comes on. Just change the coolant just change the oil. Help me out guys where would you start. Also nobody had a thermostat in my area locally so I went to the auto parts store and got one it was 180 degrees instead of 160 degrees there should be no problem correct? Thanks again
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post #2 of 7 (permalink) Old 10-21-2019, 01:33 PM
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When changing coolant did you bleed the system per your manual?

The 180* "T"stat means the motor will get hotter before the radiator and fan will cool it down. If you live in cold Canada it may be OK. But if in more temperate temperatures I would order a 160*.

With the motor warm, look in the top of the radiator, then rev the motor. You want to see turbulence indicating the water pump is working. You don't want to see bubbles, a indication of a bad head gasket.

You can remove the temperature sensor/sender and test it in a pot of heated water.

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post #3 of 7 (permalink) Old 10-21-2019, 04:08 PM Thread Starter
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Originally Posted by DEZPERADO View Post
When changing coolant did you bleed the system per your manual?

The 180* "T"stat means the motor will get hotter before the radiator and fan will cool it down. If you live in cold Canada it may be OK. But if in more temperate temperatures I would order a 160*.

With the motor warm, look in the top of the radiator, then rev the motor. You want to see turbulence indicating the water pump is working. You don't want to see bubbles, a indication of a bad head gasket.

You can remove the temperature sensor/sender and test it in a pot of heated water.

WELCOME TO THE FORUM.

I see the coolant had small turbulence when i hit the gas it lookslike when rain hits a lake but i dont see it churning. The bike overheats in 5 minutes even when thermostat is taken out. How can i tell for dire id eatery pump is bad
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post #4 of 7 (permalink) Old 10-21-2019, 04:12 PM Thread Starter
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Quote:
Originally Posted by Carlos Esquerra View Post
Quote:
Originally Posted by DEZPERADO View Post
When changing coolant did you bleed the system per your manual?

The 180* "T"stat means the motor will get hotter before the radiator and fan will cool it down. If you live in cold Canada it may be OK. But if in more temperate temperatures I would order a 160*.

With the motor warm, look in the top of the radiator, then rev the motor. You want to see turbulence indicating the water pump is working. You don't want to see bubbles, a indication of a bad head gasket.

You can remove the temperature sensor/sender and test it in a pot of heated water.

WELCOME TO THE FORUM.

I see the coolant had small turbulence when i hit the gas it lookslike when rain hits a lake but i dont see it churning. The bike overheats in 5 minutes even when thermostat is taken out. How can i tell for dire id eatery pump is bad
How can I tell for sure the water pump is bad. And yes I bleed the cooling system. Also if the water pump is bad what parts do I need to rebuild it I just replace the mechanical and oil seal in it
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post #5 of 7 (permalink) Old 10-21-2019, 04:13 PM Thread Starter
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The reason I think it's the water pump is because even if the head gasket was bad it wouldn't cause it to heat up so fast would it?
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post #6 of 7 (permalink) Old 10-21-2019, 11:23 PM
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A blown head gasket really doesn't cause overheating, but because of combustion pressure bleeding into the coolant as air and pressure it appears that it is boiling.

If there aren't any bubbles or real water movement in the radiator it's possible the water pump may be bad. The pump has a plastic impeller and a driven plastic gear. You'll have to pull the cover to inspect the impeller and spin the shaft. If the shaft spins at all the driven gear may be bad and the pump housing will have to be pulled. Your manual may explain it better then I can.

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post #7 of 7 (permalink) Old 10-22-2019, 04:05 PM Thread Starter
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I feel like an idiot. I just put a radiator on it when i replaced the steering stem snd forgot to remove the cap of the radiator. And Just happened to be the pickup home on the bottom id the radiator. Thanks again for the help
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