2021 Yamaha Grizzly 700 EHS Tuner install

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Installing the EHS Tuner on my 2021 Yamaha Grizzly 700.
The EHS Tuner is a Fuel Programmer. it Plugs into your injector harness and stays plugged in, You can adjust your fuel curve on the ride. Highly recommended , Helps with cold starts alot.
Not very hard to do, takes about 40 mins if your taking your time.
If you have basic mechanical skill youll be just fine

Ill make a video soon on what i think of it, but i can say already its quite the difference
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That's a nice Grizzly man and I honestly didn't know they had those issues from the Factory! holy sht! one of these days I might get back into this! I sold my 2013 Arctic Cat 550 with power steering back in 2020

Canadiancarguy
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My question is that I got the same one but on a 2016 if u change out the battery do u got reprogram it again? Cause I bought it all ready set up just worried if I had to redo cause I have no paperwork for it.

davidbennett
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I installed the EHS tuner on my 2021 grizzly and it ran like a turd. Eric says at idle it should flash green not be 2 or 3 steady green lights. To get my light to flash at idle I had to set blue green at 7. His settings are way to rich. I've talked to others on Grizzly Central and they all agreed. The settings need to be lower because it's to much gas, makes it a turd off idle and black plug. I took mine off and the wives and stock they run way better! I copied some of the settings others had for their grizzlies and might try it again this summer with lower settings like they used. EHS has a video on Facebook showing new settings for the 2021 grizzly and they're nothing like in his instructions. Just my 2 cents worth. And another thing Yamaha changed the air box on the grizzly and even Eric says theirs is any better.

SuperDave-pezw
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What do you think of the tuner? ive been thinking about getting one of these tuners and getting a slip on exhaust.

ajmoon
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Recently installed my tuner and noticed it often stays on the three green lights when idling just wondering if you know if that’s normal or if it should just be one or two

mmyers