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2006 Kx450f overheating

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I have a 2006 Kx450f and been having a cooling problem my bike keeps boiling over and I am mainly riding wide open desert. Would appreciate any advice on things to do or check or try. I have put a new 1.6 cap on used engine ice did not help, I have checked water pump and it works next thing I was thinking about trying  is a Boyesen supercooler any thoughts and recommendations would be appreciated 

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You shouldn't have any cooling problems in wide open desert riding.  I would remove rads, flush and verify flow.  Check hoses for kinks, if it has a thermostat verify the thermostat is functioning properly.

Maybe it's running really lean? 

 

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1 hour ago, braindead0 said:

 

1 hour ago, braindead0 said:

You shouldn't have any cooling problems in wide open desert riding.  I would remove rads, flush and verify flow.  Check hoses for kinks, if it has a thermostat verify the thermostat is functioning properly.

Maybe it's running really lean? 


Ok I will take the rad off and flush and also check and see in Manuel if the bike has a thermostat. But if the bike was that lean wouldn’t it be running like doo and poping and spiting flames like showing bad symptoms of being lean

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Just tossing ideas out there, you didn't mention how it's running... for all I know it is backfiring and running like crap as you fly across the desert 'wide open' at 10MPH 😉

If possible flush the engine block as well.  If someone mixed incompatible coolant or the coolant became contaminated with who knows what.. there could be 'gunk' blocking cooling passages. 

I wouldn't recommend throwing things (and dollars) at the problem yet, not until you know for sure what the actual problem is.

Good luck.

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Check for signs of a head gasket leak. Inspect the spark plug, coolant and engine oil.

Maybe a warped head. Easy to glass plate sand it flat and replace the gasket.

After market coolant hoses without the join piece are cheap and reliable.

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17 hours ago, braindead0 said:

Just tossing ideas out there, you didn't mention how it's running... for all I know it is backfiring and running like crap as you fly across the desert 'wide open' at 10MPH 😉

If possible flush the engine block as well.  If someone mixed incompatible coolant or the coolant became contaminated with who knows what.. there could be 'gunk' blocking cooling passages. 

I wouldn't recommend throwing things (and dollars) at the problem yet, not until you know for sure what the actual problem is.

Good luck.

Will do thx

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