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Just get the new exhaust , that sh** will spike the Super 8's performance Heavy , like double the torque from stock exhaust  - and jet it to about 86-88 with the new exhaust.   Exhaust and jetting is huge ,,, maybe throw some  gram Sliders in their.   

For jetting , just unscrew and remove airbox first -- then take off Throttle carb cap , gas line , and unbolt the carb. Once unbolted disconnect the e choke --- Flip carb upside down - unbolt bowl.. Maine jet is the one sitting higher  , closer to your face , unscrew it and put in a fatter one. 86-88 for expansion exhaust -- Keep air filter on bike.     JEts to use are 4mm keihin round jets .... stock part # 99101-116 - Jets size # .

I also am friends with a Mechanic / salesman at Scootertuning.ca and am aware that their are no gear up kits for the SUper 8 2t. It has a unique final drive where the Super 9 and other "kymco" branded Air Cooled gear up kits WILL NOT FIT> ive spoken to stage 6 directly as well about this, inquiring about a discontinued kymco gear up kit for super 9, people, and some others. BUT wont fit a super 8 2t. sh** is lame

malossi 70cc "72cc" Big Bore kit for kymco 2 strokes air cooled. # 319987 Brand New unopen.
20mm "racing" intake for kymco 2 strokes - New gaskets and carb spacer in 20mm size as well.
12mm malossi wrist pin
19mm Brand NewChinese keihin clone Carb AND a REAL KEIHIN pb18 18.5MM 2 STROKE CARB . super Rare carb i took from a genuine Rattler 110. same brand and maker of stock kymco but in a better Bigger form. bolts right up, same 42mm space holes. I dont have the carb cap or the Slide with needle BUT its because iv checked and they use the same SLide and Needle and carb cap as stock Kehin carb. No adjusting of any Cables or anything needed to move over to this Big Carb. No adapters.
#92-96-98 4mm small round main jets to jet the bbk
New Red 2000 rpm clutch springs.
Red 35mm Free Flowing air filter I had tried on the bike one time.

If anyone wants to BUY THIS via paypal I can ship it all to you for a total of 240.00.     agoncalvesjr89@gmail.com

my Friend,,, if you swapped that WHOLE motor out with a 250cc engine... BUt still had that drive boss you still wouldnt get past 35mph. Despite the speed of your spinning variator,, if it cannot close past a certain point you will never go faster.

Cruise at 38 if derestricted by smooth drive boss in the cvt , and jetted to 82. That stock exhaust with the small blind pipes coming out of it is the biggest restrictor.

Hey all. I have a new 70cc kit for my super 8... I have a sh**TY 19mm kei hin clone to use with it.. it barely pushes my 50 cc cylinder.. i believe it will damage my new kit. ANYWAYS  , whose running bbk's on their stock carbs? what jet sizes you using?

I have not done anything to the pilot jet except clean it.
The main jet is all i have to work with -- the needle is
Non adjustable.. Which is a problem for me now.   And the bike is air cooled

2013 super8 2t.        Stock carb jetted at 86 (slightly lean throughout but perfect WOT) - stock air box, snorkel removed.   NAraku standard variator, 7.5 grams. gates belt 2mm slightly longer than stock, Tecnigas q tre exhaust.. The exhaust and variator, with perfect running jet size gets me to 45mph now.... with heavy 7.5 weights the takeoff isnt explosive (like it was when i had 4.5 grams) BUT it allows me to live over 40 mph comfortably, and still have a range of smooth acceleration and power up in the high mph... the 88 main jet makes for a nicer richer mid range, but at WOT it runs rich and gurgle's -- it didnt Wine up like it does with the 86.......88 main jet brought me to 43 ,,, and sounded literally like it was gargling down gas. 86 = fine. Stock clutch completely,, I have torque spring and clutch springs but i dont need them in their yet. the mix screw, idle and throttle cable are all as tight and tuned as possible. I have a 20mm Kymco super 8 Intake manifold, gasket, spacer and a 19mm no name brand 2t carb off ebay.. Im going to see what the bigger stuff can do.. but 45 mph with stock 50cc cylinder and carb and air box.