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MotoForce Cylinder Kit 70cc cast iron Yamaha BW's / Slider

MotoForce Racing Item no.: MF26.16847

MotoForce Cylinder Kit 70cc cast iron Yamaha BW's / Slider

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Data Sheet
Suitable for (32)


Here at Maxiscoot for an unbeatable price: The MotoForce 70cc Cast Iron Cylinder Kit MBK Booster / Stunt / Yamaha Bw's(Minarelli vertical, 10mm).

The kit includes:

- 47mm Cast Iron Cylinder with 5 transfer ports and simple oval exhaust port
- Two-Ring Piston, 10mm pin
- High Compression Monobloc Cylinder Head
- Gasket Kit for mounting

It is suitable for MBK Booster / Stunt with vertical Minarelli AC engines

It can reach 8 to 9hp and is built for everyday use. With a 47mm diameter, it has 70cc displacement, so it is not-street-legal.

The MotoForce 70cc Cast Iron Cylinder Kit "Sport" Booster / Stunt has excellent value for money for a 70cc sports kit. If you want even more power, you should combine it with a 17.5mm carburetor although it is not necessary. A street-legal exhaust will be adequate for this kit.


Data Sheet

Name MotoForce Cylinder Kit 70cc cast iron Yamaha BW's / Slider
Item No. MF26.16847
Brand MotoForce Racing
Homologation No
Displacement 70cc
Stroke Original
Conrod Length Standard
Product Line Sport
Material Cast Iron
Engine Type 2-stroke
Cooling Type AC
Bore 47 mm
Piston Pin Original
Number of Piston Rings 2
Cylinder Head Included

Your product goes with the following manufacturers and their models:

Adly (Her Chee)

Rapido 50cc


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)

Slider 50cc AC (before 2004)

Slider 50cc AC CAT (after 2004)

Spy 50cc AC

Target 50cc

Zuma 50cc AC

Zuma II 50cc AC

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