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2021 Yamaha MT-09 SP
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Discussion Starter · #1 ·
Hey guys, a quick PSA - be careful with the OEM grip heaters. I'm in Canada and it's getting cold in here so I grabbed a set of B7N-829A0-00-00 grip heaters (had to buy from Europe).

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Installation was a breeze :

Removing the left grip was the longest part of the job. I broke the glue using a long, very narrow screwdriver.

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Then you install the left one (which slides super easily, it's not rubber, it's plastic inside!) with grip cement / glue (I used Renthal grip glue). There's a nice channel to hold the wire underneath the control box.

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The throttle side was super easy : pull the 4 screws, split the control, remove the original one, push in the new heated one. Installation looks super clean. On the right side, there's a nice bracket already zip-tied at the correct location to hold it.

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I don't have any pictures of the hookup - it's super easy : remove 4 bolts on the headlight assembly, pull forward, plug the 2 wires, bingo.

So I install the bar ends and wait a day to go ride (let the glue set on the left side)... Turns out there a bunch of bad weather so the bike stays in the garage for a while... I did check for full throttle motion, started the bike, idle was fine and all.

Then I went for a ride and almost rear ended a car on the highway when I couldn't cancel cruise by rolling the throttle forward. For those not familiar with the SP, you can cancel the cruise by turning past idle (like 1/16 of a turn). I pulled in the clutch and didn't get into an accident but I was startled..

Turns out the "B7N-829A0-00-00" part number isn't officially compatible with the SP model... Wasn't super bad and I rode the bike like that for a while but I'm prepping the bike for winter now so I decided to compare the 2 grips :

As you can see, the tube's part number is slightly different : B7N YG390 vs BAM YG391

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If you look carefully, to the right of the bottom tab that sticks out, there is additional plastic

Super obvious here, see how the width of the plastic isn't the same...
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There's also a slot on the back of the handle that is wider. Essentially the grip has a "stop" on the front that limits rolling off throttle and a slot in the back that limits the full rotation.

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Both of these engage in the black tabs you can see to the back and front of the handlebar here :

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In the picture above, the white ring is the actual rotating throttle part.

I fixed it by very carefully trimming the plastic part to make it match the factory one. I used a combinaison of a dremel and a very sharp knife.

Result :
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I've also cut the slot wider but didn't think to take a pic.

I installed it back and everything is good now!
 

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2021 Yamaha MT-09 SP
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Discussion Starter · #3 ·
Excellent write up.

You'd think they put a disclaimer about the cruise control cancel as that can be a massive safety issue (as you described). Saving this post for later when I get my bike as I defintely want heated grips. Thank you for sharing!
To be fair, these are listed to fit ONLY on the MT-09, not the SP.

Here's what it looks like once it's running : you get an additional icon in the LCD where you can go in and select up to 10 levels of heat. Nothing to do, just plug them and start the bike. I do have a feeling that the reason why they are plugged into the ECU is because the bike controls the amount of power going to them according to what's available from the generator...

Near freezing (+2C), at 120km/h (that's 35f and 75mph in freedom units), at the highest level (10) I was "ok". Not cold, not warm. Drop in 4th to overtake and you can feel the heat rising!. Drop to city speed and I can't keep them above 7-8, they get too warm.

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Thermal imaging pics :
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2021 Yamaha MT-09 SP
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Discussion Starter · #4 ·

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2021 Yamaha MT-09 SP
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63 Posts
Discussion Starter · #7 ·
If you can post a picture with an arrow pointing towards where you have removed material that would be awesome... For blind people like me 🤣
He you go :

When you pull the factory throttle tube you'll find that it's super obvious.

First, you trip the part that faces forward if the bike when idle. See here : 2 cuts :
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Now, you do something similar 180 degrees.. on the back side of the back when idle. This time, it's a slot that needs to go deeper.

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thanks for posting this

im still on the fence about factory vs aftermarket, i really like how clean they install
Yeah, the integration in the UI of the cluster was the killer for me. While the roller buttons isn't the best to use while driving... I don't like the look of non factory options. The install is also a breeze because you only need to plug into the factory wiring harness!
 

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Discussion Starter · #9 ·
Attached is a Oxford heat controller.
Aleks
Yeah, I had the exact same on my previous ride - a NC750x from Honda.

Btw, the one I installed ONLY work if the engine is running. Key on = no heat. Engine running = heat. That might be a plus of minus depending on who you talk to. I find it as a positive.. but I heard of some people pre-heating their grip before a ride.... My opinion is : if you need to pre-heat your grips, the engine needs pre-heating as well...

Absolutely no way to drain your battery with those... I know the Oxford have that low-battery cutoff but not operating without the engine is even better if you leave yours keys on.
 

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Discussion Starter · #49 ·
Can anyone please measure the original throttle tube and post it, my bike came with heated grips already fitted and they don’t cancel cruise control. If someone can post the measurements of original tube, I’ll be able to trim mine to exact specifications. Regards.
Here you go. Used a string on the OEM grip.. and you can see the actual dimensions on both side of the grip. The grip is symmetric so the measurement is the same - roughly 17mm on the outside using a string. No need to measure the inside - the angle of the trim, you can check your grip.. it just crosses the center of the grip.

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