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Discussion Starter · #1 ·
Has anyone had a coolant leak from the vent hose that is on the bottom of the motor. I have a 2016 that only has 15 hours on it. I rode it for about 15 minutes it was 90 degrees outside then went to change the oil and noticed a little coolant coming from a hose on the bottom of motor. Any ideas I would really appreciate it! Thank You..
 

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2016 Yamaha Kodiak 700 base model
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I haven't looked to see where that hose attaches but are you sure that it is coolant and not some condensation or water out of the air filter housing?
 

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2016 Yamaha Kodiak 700 base model
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According to my repair manual there is a coolant reservoir hose that comes off of the coolant recovery tank, just how long it is it doesn't say.

Have you checked the reservoir tank and radiator to see if the coolant is low or possibly overflowed?
 

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Discussion Starter · #5 ·
Yes I did check the reservoir tank and it was just a little low so I added a little coolant. Tomorrow I will look closer to see where the line goes and I will try to follow the line from the reservoir tank. Thanks for your help and I will let you know what I can figure out..
 

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Discussion Starter · #6 ·
Hi Jim update on the leak. Turns out that there is a small drain hose coming off the water pump that runs under the motor. The dealer says it is there encase the water pump goes bad, I only had a very slight leak and it has not leaked since. I guess I will just keep an eye on it and if it does it again then looks like I will need to replace the seal in the water pump. All my other ATVs in the past were air cooled and I liked that way better. Thanks for your help.
 

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2016 Yamaha Kodiak 700 base model
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I took another look at the repair manual and it does show a water pump breather hose and I can see where if there is a problem with the water pump that it would get some coolant out of it.

I know that on most water pumps on vehicles that they have a weep hole on them as kind of a warning to the owner that coolant is getting past seals and that it is about to die on them. Now weather the water pump on the Kodiak does this who knows. I had a pump on a truck that leaked a little for a couple of years and then it went another 10 years before it finally went out on me.

It is defiantly sonething to watch real close.
 

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Joe has given you lots of good info. I will add, that you need to keep the reserve tank at a good level, but never fill past the full line. I don't know why, but it seems that a once a year add to that overflow tank is not unusual.
 
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