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Old 10-31-2016, 04:30 PM   #1
Scuuuba_Steve
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How to remove Exup valve, 2016 R1

Anyone know how to do this? Is it simple? Can anyone explain how to do it properly so I don't get a check engine light? Thank you.
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Old 10-31-2016, 05:44 PM   #2
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Did you already install an aftermarket ?

If you don't want to spend money on buying some servo buddy then simply just remove the cables from the Unit and leave it plugged in. You won't get a code because the ECM will still think that the valve is in place.
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Old 10-31-2016, 06:28 PM   #3
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I did. My girlfriend has the same exact exhaust on her 636 and hers is louder. Much louder. She said when she had it installed the guy removed the Exup cables or something and it made a huge difference in sound. I love the way her bike sounds so I want to do the same. I know different bikes sound different but there's no way a 636 should be louder than an R1.

If I remove the cables it has the same effect?

Thanks for your input.
Quote:
Originally Posted by Pearl zx6 View Post
Did you already install an aftermarket ?

If you don't want to spend money on buying some servo buddy then simply just remove the cables from the Unit and leave it plugged in. You won't get a code because the ECM will still think that the valve is in place.

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Old 10-31-2016, 06:55 PM   #4
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636's will always sound better than an R1 lol.

Anyhow the valve shouldn't even be working anymore. all after market pipes don't have a valve on them. What type of exaust did you purchase? Do you have any pictures of it installed?
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Old 10-31-2016, 07:14 PM   #5
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I think the exup valve is further towards the catalytic converter in the middle of the pipe. The end can is straight through as far as I know.

If you undo the cables that operate the valve, the valve should stay sprung open. Though the ECU tuning makes power down low by using the valve, so it may feel like you have a big flat spot where you didn't before you unhooked the valve.
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Old 10-31-2016, 07:25 PM   #6
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Quote:
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I think the exup valve is further towards the catalytic converter in the middle of the pipe. The end can is straight through as far as I know.

If you undo the cables that operate the valve, the valve should stay sprung open. Though the ECU tuning makes power down low by using the valve, so it may feel like you have a big flat spot where you didn't before you unhooked the valve.
Fc is completely right, I just looked at a oem R1 exaust and the valve is right behind the cat.

Just buy a cat eliminator pipe and your bike will be way louder than the 636. I would also recommend getting your ECM tuned, not super crucial but it will keep everything running really smooth.
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Old 10-31-2016, 07:26 PM   #7
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Quote:
Originally Posted by FightingChance View Post
If you undo the cables that operate the valve, the valve should stay sprung open. Though the ECU tuning makes power down low by using the valve, so it may feel like you have a big flat spot where you didn't before you unhooked the valve.
+1

The GSXR 1000 had the exhaust valve removed, and was basically a straight-pipe when I purchased it. It was loud as f**k, and was terrible to ride.

It could leave a light, and worked well at the top end, but between 2,500 and 7,000 RPM it was dreadful.

I eBayed a new valve and got some spare exhaust parts, making it nice to ride, again.
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Old 10-31-2016, 07:29 PM   #8
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Once you do all your mods i recommend a custom flash..itll make your bike run better and you can eliminate any codes...plus a lot of other cool shet
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Old 04-05-2017, 01:54 PM   #9
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what i did to my R1 was take the mid section off the exhaust, take out the flaps from the exup and used bolts and washers to cover up the holes left by the flaps, reinstalled the exhaust, removed the cables from the servo but still have the servo attached, i get no FI light and no worrying about buying the servo eliminator
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Old 02-16-2019, 03:38 PM   #10
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I need to remove mine as well as I have a FI light due to C46 (exhaust servo malfunction), still riding it that way as I haven't gotten to it yet. To be honest now the bike response actually feels better after servo malfunction LOL, go figure.

I was thinking of buying the servo buddy, but it's $60 or so and I would be if I spend that money and it does not work to get rid of my light. Not sure if I would be able to return it.
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Old 02-18-2019, 10:33 AM   #11
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The servo buddy is basically a resistor to fool the system into thinking the servo is still attached. You could put resistors in yourself for a few dollars and I'm sure there are write-ups on your bike's specific forum. On my R6 I used a servo buddy to save weight but on the WR250R, I just left the servo in and removed the cables.
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