2001 Polaris SLH, Virage PWC Factory Service Manual, Page 135Get this manual
CarburetionExhaust Carburetor DisassemblyInspectionContinued
3Inspect the jet block and pop-off valve assembly for obstructionsMeasure control arm height from machined surface to top of plastic button on control arm Remove screw and remove control arm and inlet needle
.0601 1.5 mm
NOTE: Top of plastic button #2 should be .060 1 (1 .5 mm) below casting surface #1 as per illustration at rightVariances in control arm positioning will result in incorrect fuel supplyIf the control arm is too close to the diaphragm, fuel levels will increase, resulting in rich operating conditionIf the control arm is too far below the casting parallel line lean condition will result