Polini jets for carburetors

The importance and the characteristic of the new production of jets of the maximum Polini Motori is the high construction precision and the control carried out in a thousandth way on the measurement of the passage hole in order to guarantee a correct modification to the carburetion. The jet of the maximum acts on the carburation mainly for the last three quarters of the gas opening, but still makes its influences felt even if in a less marked way starting from the medium openings.

Carburetion changes:

• Increasing the jet size enriches (greases) the carburation, increasing the quantity of petrol sucked by the engine.
• By reducing the jet size, the carburetion is depleted (decreases), decreasing the quantity of petrol sucked by the engine.
• An increase in the ambient temperature or an increase in altitude above sea level causes a lower density of air causing a carburetion grease.
• An incorrect adjustment of the carburetion with excessive leaning (reduction of the jet size) causes overheating to the engine up to seizure.
• An incorrect carburetion adjustment with excessive greasing (increased jet size) reduces performance by increasing fuel consumption and causing spark plug smears