Those with 2016-2018 700’s with a EHS tuner - Yamaha Kodiak 700 Forum
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post #1 of 9 Old 09-22-2019, 04:22 PM Thread Starter
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Those with 2016-2018 700’s with a EHS tuner

After the tuner was installed how much of a impact did it have on the machine running cooler ? The reason I ask, my son and I were up on the deer lease doing some work Saturday and going slow on the trails as not to tear them up and it just heats up so fast. Not left idling or anything like that. So how much of a difference have you noticed ?
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post #2 of 9 Old 09-22-2019, 10:27 PM
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The exhaust system and engine might run cooler, but the radiator fan is going to cycle often as these machines don't have much natural cooling, especially with slow machine speed, when there is little air coming into the radiator, without the fan boost. Your description is what mine does and yes it is hot, but not beyond design temps. I don't have a tuner, so I can not answer your specific question.
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post #3 of 9 Old 09-22-2019, 10:42 PM
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I know you are looking for feedback on 2016-18 engines, but my 2019 with the EHS controller and stock exhaust runs MUCH cooler. Not only is the plastic over the pipe cooler, but the fan, which used to run alot, now only comes on when riding hard. Hopefully this helps.
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post #4 of 9 Old 09-23-2019, 10:23 PM
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Well that is an interesting reply, so are you saying that a tuner would lead to a major reduction in heat output on this 708 engine? I know there are several forum members who feel like that is accurate, is that unanimous?
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post #5 of 9 Old 09-23-2019, 10:44 PM
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I've often read the same positive results with 708 owners and EHS tuners. Cooler running with more power.... just passing info, I have zero experience in it.

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post #6 of 9 Old 09-24-2019, 01:39 AM
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Bike should definitely run cooler with tuner, but your fan shouldn't really run any less. According to the manual, the fan comes on once engine reaches operating temperature. Many confuse this to overheating, when in fact, it's at optimum temp, the fan is just preventing it from rising to over temp range.

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post #7 of 9 Old 09-24-2019, 06:29 AM Thread Starter
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Thanks for the reply’s,
I know these 708’s run lean causing the machine to run hot. I have read a bunch of posts about the positive effects the tuner has had on others machines. Just wanted some first hand reviews from other kodiak owners
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post #8 of 9 Old 09-24-2019, 09:38 PM
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If it runs cooler, and I suspect it does, that has to lead to longer engine life not to mention the oil life.
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post #9 of 9 Old 09-26-2019, 04:00 PM
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The engine isn't running cooler. The engine will run between 195-206 degrees F due to the coolant thermostat

However the exhaust may run cooler but you would have to put a exhaust gas temperature gauge onto it to tell.

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2016 Kodiak 700 base model with a few SE parts CV boot guards, receiver hitch, Grizzly bars. Trail Tech Striker speedometer/voltmeter. 501 Parts Electric Grabber locking diff
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