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#P3651
4.0 throttle slide for Dellorto SI 24/24 carbs.
To comply with emissions the for new PX, the SI carbs are fitted with a throttle slide with 2 additional air pockets. This effects the mixture and can cause pinking and piston jams on tuned engines. The solution is to replace the throttle slide with a thicker throttle valve without any air pockets which the 4.0 throttle slide does.
*CNC-milled, hard anodised.
84920400