2014 Honda foreman overheating - Honda ATV Forum
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post #1 of 12 (permalink) Old 02-12-2019, 09:47 PM Thread Starter
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2014 Honda foreman overheating

I have a 2014 Honda foreman and within about 15 minutes of riding it'll start to over heat. I have the radiator relocated . I've replaced the thermostat and cleaned the radiator until it's clean as a whistle. I also checked the water pump on it, it seemed to be fine all the props were still in tack and is wasn't seized up . The fan comes on and will run pretty much the whole time. I did notice the hose coming out the top of the radiator will get hot and the hose on the bottom would be much cooler . I don't know what else to check . Anyone have any ideas . Thanks
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post #2 of 12 (permalink) Old 02-12-2019, 10:33 PM
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Originally Posted by Bradmiller View Post
I have a 2014 Honda foreman and within about 15 minutes of riding it'll start to over heat. I have the radiator relocated . I've replaced the thermostat and cleaned the radiator until it's clean as a whistle. I also checked the water pump on it, it seemed to be fine all the props were still in tack and is wasn't seized up . The fan comes on and will run pretty much the whole time. I did notice the hose coming out the top of the radiator will get hot and the hose on the bottom would be much cooler . I don't know what else to check . Anyone have any ideas . Thanks
Was the new thermostat OEM?? If not, I would pull it out and check it per the manual. Actually, even if it is OEM I would pull it out. Sounds like it may be sticking in the closed position.
I'm assuming you used the correct size tubing when you relocated the radiator?
Did you bleed the system well after you relocated, refilled the radiator and reserve tank? Air in the system will cause overheating.
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post #3 of 12 (permalink) Old 02-13-2019, 06:16 AM Thread Starter
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Yes the thermostat was OEM . All the hoses came with relocate . How do I check for air in the system ?
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post #4 of 12 (permalink) Old 02-13-2019, 07:02 AM
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I'm not familiar with that particular thermostat, but can it be installed upside down?

2015 TRX500 Foreman
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post #5 of 12 (permalink) Old 02-13-2019, 09:32 AM Thread Starter
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No it has a flat lip around the top where it sits in. Anyone know how to check for water in the system?
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post #6 of 12 (permalink) Old 02-13-2019, 11:26 AM
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Maybe thermostat is defective. Try running without it.

2015 TRX500 Foreman
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post #7 of 12 (permalink) Old 02-13-2019, 12:37 PM Thread Starter
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I've tried running it with out and still had the same problem I put a new one in on Monday and still no luck.
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post #8 of 12 (permalink) Old 02-13-2019, 02:35 PM
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Have you idled the bike with the rad cap cracked?
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post #9 of 12 (permalink) Old 02-13-2019, 08:46 PM Thread Starter
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I haven’t tried it with the cap cracked I will try that out tomorrow. Thanks
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post #10 of 12 (permalink) Old 02-13-2019, 09:22 PM
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You bleed the air by:
Fill the radiator with coolant up to the filler neck. Leave the cap OFF
Be sure quad is in Neutral
Start engine and let it idle 2-3 minutes
Snap the throttle 3-4 times to bleed air from the system. You may see a little coolant "burp" from the radiator, but you may not.
Turn the engine OFF and add coolant back up to the filler neck of the radiator (the level should have gone down slightly as the coolant circulates and air is removed)
Install the radiator cap

This is why @TBRider suggested to try letting the quad idle with radiator cap off.

Keep us posted, please.
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