Exhaust -YASUNI City R- Minarelli 50cc (horizontal cylinder) - carbon

Exhaust YASUNI CITY 16 with E marking.

The workmanship is of the usual high quality. Moreover, small details round off the perfect impression of the system. For example, the transition from the resonance body to the final damper is not only reinforced, but also sealed with an O-ring. The manifold is also manufactured in single segments and convinces with a perfect finish and well thought-out design.

Without throttling the exhaust may only be used for competition purposes. But then it mutates into a tuning weapon. The very short resonance length in connection with a well dimensioned exhaust body let the CITY 16 turn until the doctor comes.
The higher revs require however some tuning work. So not only lighter weights have to be chosen, also the clutch should be packed later.

Conclusion: Power grenade which provides for a decent top speed!

The throttling of the system is done by the well known disc in the manifold which is fixed with two welding spots. Additionally there is a taper in the muffler, which should also go into the large round shelf in the workshop to achieve full performance. In addition here also still the clamp devil lurks in the form of overheating.

Please note:
Retrofit systems usually always have more power than the original exhaust. In order to obtain an approval, they are throttled at the factory, which can cause a shift in the power band.
In order for the scooter to reach its full power and speed, it may therefore be necessary to adapt the engine to the new exhaust with other variator weights and/or clutch springs, even if it is to be used throttled on a production engine.

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