Quick Overview
Carburettor Slide for the Dellorto PHBL carbs.
The slide cutaway effects the mixture up to 1/4 throttle openings.
Most trials bikes using the PHBL use a number 60 slide, if you require a leaner mixture use a larger cut away (larger number) and if you need a richer mixture use a smaller cut away (smaller number), this increases the air speed over the jets therefore pulling more fuel though them.
