Polini Team 4 Exhaust for Vertical Minarelli / Yamaha Zuma 50 '89-'01

Polini Team 4 Exhaust for Yamaha Zuma 50 and Minarelli Engines

The Polini Team 4 is a performance exhaust built for vertical Minarelli AM6 engines, with a listed fit for the Yamaha Zuma CW50 from 1989 to 2001. Its expansion chamber layout is meant to improve output on 50–70cc cylinders. Among Yamaha Zuma scooter parts, it is one option that can add noticeable power, particularly once the manifold restrictor has been removed. Made in Italy, it pairs solid build quality with a focus on function.

Expansion Chamber Designed for Minarelli Engines

The exhaust uses an expansion chamber intended to improve exhaust flow and help the engine breathe more efficiently. Its black anodized canister gives it a clean, streamlined look while also playing a role in performance. Used with suitable cylinders, it can produce a clear gain in pull and top speed.

Installation and Included Parts

The kit ships with a mounting bracket, the hardware you need, and an exhaust gasket, so fitting it is fairly simple. This exhaust is intended for off-road use and is not meant for public roads. Keep in mind that performance parts like this one are generally treated as racing equipment and may not be covered by warranty or insurance.

Specifications

• Position: Rear
• Color: Black
• Fits: Yamaha Zuma CW50 (1989-2001) and other vertical Minarelli AM6 50-70cc scooters

Compatibility

Compatible with:

• Yamaha Zuma CW50 (1989-2001)
• Vertical Minarelli AM6 engine (50-70cc scooters)

How to choose: Confirm that the head pipe bolt spacing is 48mm and the head pipe inside diameter is 25mm, and that the restrictor is removed, so the exhaust matches your scooter's exhaust port.

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