2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 26Get this manual
MAINTENANCE Valve Clearance Adjustment ProcedureContinued
9Install the Valve Compression Tool, PN46991under the rocker arm and over the top of the valvePush the lever down, and extract the shim using magnetCAUTION: Do not compress the valve into the piston faceDo not damage or move the valve keepers10Measure the original shim and determine the shim, smaller or larger, that will satisfy the clearance specificationAvailable valve clearance shimsPart Number
0451357 0451358 0451359 0451360 0451361 0451362 0451363 0451364 0451365 0451366 0451367 0452023 0451368 0451369 0451370 0451371 0451372 0451373 0451374 0451375 0451376 0451377 0451378 0451379 0451380