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Stage6 Tuning Kit 50cc MKII Evolution 2 Yamaha BW's / Slider

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Stage6 Item no.: MS-PKMS650MKIIEVO2

Stage6 Tuning Kit 50cc MKII Evolution 2 Yamaha BW's / Slider

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If you want to upgrade your two-wheeler for everyday street use, have a look at this excellent pack: Stage6 Tuning Kit 50cc MKII Evolution 2. We selected only premium quality components so you don't have to spend time and effort on looking for parts that perfectly complement each other.


Cylinder Stage6 MKII 50cc

Developed in collaboration with MXS Racing. It comes with a 2-ring piston, is made of Nikasil-plated aluminium, has 5 transfer ports and an oval-shaped exhaust port. The most important technical innovation: 2 additional intake ports which result in a performance comparable to a 1-ring piston racing cylinder.


Exhaust Yasuni R

The Yasuni R exhaust is basically between the Yasuni Z and the Yasuni C16, ideally suited for 50cc and 70cc sports and racing cylinders.


Clutch Stage6 Sport Pro

HQ clutch for improved off-the-line to top-end acceleration.


Variator Stage6 Sport Pro

The roller tracks and the back of the variator are hard coated to make them highly wear-resistant, reduce friction and improve acceleration.


Carburetor PHBG 19mm

This carburetor (PHBG 19mm) by MotoForce will improve the performance of your engine considerably. It has a separate oil injection and a vacuum port. Starter is a manual cable choke.


Definitely a perfect compromise between reliability for everyday riding and outstanding performance. Needless to say, you can optimize performance by adjusting the carburetor (jetting) and variator (weight and spring adjustment).

And to round it all off for maximum power, we recommend running this set-up with a Malossi CDI. This should add up to 10hp.

Additional Information
Name Stage6 Tuning Kit 50cc MKII Evolution 2 Yamaha BW's / Slider
Brand Stage6
Homologation Yes
Displacement 50cc
Stroke Original
Conrod Length Standard
Product Line Racing
Material Aluminium
Engine Type 2-stroke
Cooling Type AC
Bore 40 mm
Piston Pin Original
Number of Piston Rings 2
Cylinder Head Included
Fits to (32)

Your product goes with the following manufacturers and their models:

Amico 50cc AC (1991 - 1992), Amico 50cc ac (after 1993), Amico GL 50cc AC, Amico Sport 50cc AC, SR 50cc AC (before 1994) - Minarelli vertical

Pista 2 50cc AC, Pista 50cc AC, Scoop 50cc

Booster 50cc AC (1992 - 1999), Booster 50cc AC (after 2004), Booster Next 50cc AC (after 1999), Booster Next 50cc AC (before 1999), Booster One 50cc until 2013, Booster Rocket 50cc AC, Booster Spirit 50cc AC (before 2004), Booster Track 50cc AC, Stunt 50cc AC, Stunt 50cc AC CAT (after 2004), Stunt Naked 50cc AC

BW's 50cc AC, BW's 50cc AC (after 2004), BW's Bump 50cc AC, BW's Easy 50cc 2013, BW's NG 50cc AC (after 1999), BW's NG 50cc AC (before 1999), BW's Spy 50cc AC, Slider 50cc AC (before 2004), Slider 50cc AC CAT (after 2004), Spy 50cc , Target 50cc, Zuma 50cc AC, Zuma II 50cc AC