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2016 Yamaha Kodiak 700 base model
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I'd just go down to the parts house and pick one up.

But with a 2021 needing a new battery I'd wonder why?

My 2016 is still running on the factory one and it gets a work out during the winter while I am plowing snow. I do keep it on a battery tender when it is parked.
 

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2016 Yamaha Kodiak 700 base model
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I haven't heard anything about the 21's having the starter problem, but it is a place to look if there are starting problems. But the stater does carry the same part number.
 

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A relatively easy test for the starter is if a new battery or a quality jump start works, then the starter is usually fine. A quality jump-start means good cables and a good jump battery. Many places that sell new batteries can test it for you often for free. Charge it up before you take it for the test.
 

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And if you buy a battery, don't settle for a smaller one, these engines turn over a bit hard from high compression. You won't have any extra room if the battery is physically bigger, it will not fit.
 

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2016 Yamaha Kodiak 700 base model
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I just looked at the SN list for the defective starters and it ends at 2018. It doesn't mean that it can't be the starter but just that it isn't in the range of the defective ones that were installed that we know about.
 

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Discussion Starter · #9 ·
I have on two separate occasions left the key on and completely drained the battery. I am sure that is not a good thing. I don't use it very often at all. If it goes 10 days or so it will light up and almost start but doesn't make it. I can see the voltage. About 10v. On a trickle charger is takes about 3-4 hours and then starts right up. I don't think I have a shirt or a starter problem. If I start it every day or every other day it always starts. So I am hoping it is a battery issue
 

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2016 Yamaha Kodiak 700 base model
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Do you park it somewhere that you can place a battery tender on it?

I have 2 vehicles plus my Kodiak and I have a tender on each one of them during the winter months. Other than that only my truck has one on it all the time since I very seldom drive it anymore.

 

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Your best bet for a good battery, just buy another yuasa. Best powersports battery there is.
Typical battery life in my book is no more than four or five years. Pass that your gambling. Batteries on an ATV take a beating, vibration and wenching. Both are extremely hard on a battery. Add to that that almost every new bike since around 2015 has had starter issues regardless of brand. All the Yamahas, is a known fact the magnets on the starter. Starter delaminate and cause extreme hard starting and usually kill two or three batteries before someone realizes that it's the starter. There are multiple TSBs about this.
 
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I have on two separate occasions left the key on and completely drained the battery. I am sure that is not a good thing. I don't use it very often at all. If it goes 10 days or so it will light up and almost start but doesn't make it. I can see the voltage. About 10v. On a trickle charger is takes about 3-4 hours and then starts right up. I don't think I have a shirt or a starter problem. If I start it every day or every other day it always starts. So I am hoping it is a battery issue
Any aftermarket accessories ? Winch , light鈥檚 etc. almost sounds like you have a parasitic draw .
 

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I do have a couple of extra lights. The winch has a capaciter on it
If you have no way to test the circuits to check for a draw, then unhook each aftermarket add on one at a time and test the battery after several days to see if voltage is down .
 

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2014 Yamaha Grizzly 700 EPS
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Be mindful of wireless remotes for some winches. I don't have personal experience with this but I've read that the hobo freight winch that only has a wireless remote, no wired switch, can have a parasitic amp draw if connected direct to the battery. I am also of the belief that is how it is designed and the instructions have you wire it up direct to the battery. If that is true, really dumb and cheap that no relay comes with it to properly connect it to a battery.

As per what Rob-c is saying... you can also test for parasitic draw with a decent digital multi-meter. It will need to be able to be set to DC Amp and make sure the probes are in the proper DMM "slots". Then disconnect ground on your battery. Disconnect all connections to your positive post on your battery. The DMM probes connect to the main positive ATV connection, then the other probe connects to the battery positive post. Now reconnect your ground wire to your negative battery post. Turn on the DMM, making sure it is set to DC Amp and see if you are reading any amps while your ATV is turned off. I would avoid trying to start your ATV while connected this way as the DMM may not be able to handle that type of Amp load to the starter.
 

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We've got 3 yamaha kodiaks of different years and a king quad. Got tired of buying expensive odd sized batteries and installing them in difficult to access places. So, all ours get a milk crate attached to the back rack to carry chainsaws and whatever. They also hold a cheapo $30 lawn mower battery. Easy to get to, recharge or replace, and LOTS cheaper than the factory replacement. Also seem to last as long...
 

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We've got 3 yamaha kodiaks of different years and a king quad. Got tired of buying expensive odd sized batteries and installing them in difficult to access places. So, all ours get a milk crate attached to the back rack to carry chainsaws and whatever. They also hold a cheapo $30 lawn mower battery. Easy to get to, recharge or replace, and LOTS cheaper than the factory replacement. Also seem to last as long...
Hopefully it has enough capacity for the bikes electrical system or else your putting much unneeded stress on the charging system
 
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