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Author Topic: How do I derestrict a 2017 Kymco Super 8 50 2T?  (Read 6969 times)

GameDial

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How do I derestrict a 2017 Kymco Super 8 50 2T?
« on: May 18, 2018, 11:05:08 PM »
I got this scooter a month ago and damn it is slow! Top speed on flat road is 42km/h. I have been searching around the internet for how I make this thing go faster, but with no luck. How do I derestrict it?
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mclark999

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #1 on: May 23, 2018, 11:49:36 PM »
Search this forum for the word derestrict and you'll find what you need.  I think on a 2017 all you need to change is the variator boss. The CDI should already be good. 

With the boss changed, you should be able to go around 40 mph.
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Denver, Colorado, USA 5,300 Feet Elevation

2007 Kymco People 50 2T
Tecnigas Trek exhaust
OEM variator with 6 gram rollers
OEM 16mm carburetor

AKL_HBG

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #2 on: May 24, 2018, 10:36:32 AM »
I just bought a 2016 Super 8 50x 4 stroke.  The restrictions on my year model scooter were the CDI, main Jet, clutch spacer (variator boss) and pilot jet.  I'm still dealing with the CDI, but I'm close to getting it completely done.  Top speed right now without a derestricted CDI and everything else derestrcited is 33mph - using GPS.  My sppedo is about 3 MPH high, typical of most Chinese Scooters I hear.
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GameDial

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #3 on: May 24, 2018, 03:19:25 PM »
Quote from: mclark999 on May 23, 2018, 11:49:36 PM
Search this forum for the word derestrict and you'll find what you need.  I think on a 2017 all you need to change is the variator boss. The CDI should already be good. 

With the boss changed, you should be able to go around 40 mph.

So I need to replace this piece with an unrestricted piece? https://imgur.com/a/efCM0rO
« Last Edit: May 24, 2018, 03:21:09 PM by GameDial »
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mclark999

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #4 on: May 24, 2018, 04:58:56 PM »
Quote from: GameDial on May 24, 2018, 03:19:25 PM
So I need to replace this piece with an unrestricted piece? https://imgur.com/a/efCM0rO
Correct

Sent from my VS988 using Tapatalk

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Denver, Colorado, USA 5,300 Feet Elevation

2007 Kymco People 50 2T
Tecnigas Trek exhaust
OEM variator with 6 gram rollers
OEM 16mm carburetor

GameDial

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #5 on: May 24, 2018, 09:57:06 PM »
Quote from: mclark999 on May 24, 2018, 04:58:56 PM
Correct

Sent from my VS988 using Tapatalk

Thank you so much, have a good day!
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Chris0381

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #6 on: May 25, 2018, 11:35:50 PM »
Replacing the shouldered boss should get you 35 MPH. Up-jetting 85-90, removing the snorkel from airbox, and cutting and welding the blind pipe of the exhaust, plus 8 gm Dr Pulley Sliders should get you 40+ MPH on a hot non-windy day on a flat Road with smooth surface but real nice acceleration in all conditions. Maybe also a stiffer torque spring like a purple malossi.

You may also want to expose the air screw and get a D shaped socked or cut a screwdriver slot in it.

Anything more than that would require new chambered exhaust with maybe bigger carb and maybe open air filter and more expertise than I can contribute.
« Last Edit: May 25, 2018, 11:42:13 PM by Chris0381 »
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2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

GameDial

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #7 on: May 31, 2018, 03:30:57 PM »
Quote from: mclark999 on May 23, 2018, 11:49:36 PM
Search this forum for the word derestrict and you'll find what you need.  I think on a 2017 all you need to change is the variator boss. The CDI should already be good. 

With the boss changed, you should be able to go around 40 mph.

I did what you said, and it worked! Now the top speed is around 60 kmt / 37 mph. Thank you so much!
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eamartin

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #8 on: May 31, 2018, 11:13:28 PM »
Quote from: Chris0381 on May 25, 2018, 11:35:50 PM

You may also want to expose the air screw and get a D shaped socked or cut a screwdriver slot in it.


Per your recommendation I'm ordering the D-socket.  My carb has been cleaned numerous times but I've never removed or adjusted the air screw (I thought it was a plug).  What changes can I expect by removing the air screw, cleaning if necessary and adjusting the screw?
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Chris0381

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #9 on: June 01, 2018, 10:35:44 AM »
Quote from: eamartin on May 31, 2018, 11:13:28 PM
Per your recommendation I'm ordering the D-socket.  My carb has been cleaned numerous times but I've never removed or adjusted the air screw (I thought it was a plug).  What changes can I expect by removing the air screw, cleaning if necessary and adjusting the screw?

Mainly some low idle fine tunning of the carb they may help with idling and acceleration from low speed.. This is an air screw. I don't think it affects full throttle air mixture but I could be wrong.
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2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

eamartin

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #10 on: June 01, 2018, 12:56:21 PM »
Quote from: Chris0381 on June 01, 2018, 10:35:44 AM
Mainly some low idle fine tunning of the carb they may help with idling and acceleration from low speed.. This is an air screw. I don't think it affects full throttle air mixture but I could be wrong.
My 2t runs great when it starts.  If I run it every day it starts and runs fine.  If I let it sit for 1 day or more it's very difficult to start.
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ecmcivor12

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #11 on: July 17, 2018, 11:51:48 AM »
Quote from: GameDial on May 31, 2018, 03:30:57 PM
I did what you said, and it worked! Now the top speed is around 60 kmt / 37 mph. Thank you so much!
I need to do the same. Are you able to let me know what parts you got and where you got them from?


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GameDial

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #12 on: July 17, 2018, 02:43:50 PM »
Quote from: ecmcivor12 on July 17, 2018, 11:51:48 AM
I need to do the same. Are you able to let me know what parts you got and where you got them from?


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Hi, did you get my message? Not sure if it was sent or not.
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ecmcivor12

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Re: How do I derestrict a 2017 Kymco Super 8 50 2T?
« Reply #13 on: July 18, 2018, 01:00:14 AM »
Quote from: GameDial on July 17, 2018, 02:43:50 PM
Hi, did you get my message? Not sure if it was sent or not.
You are a legend - thank you! Good results?


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