Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 183Get this manual
CLUTCHING Helix Angles and Effects
The driven clutch helix was selected for overall performance in relation to the other driven system componentsIn fine tuning situations requiring slight adjustment of engine operating RPM or improved backshift, we recommend trying helix change before changing other componentsThe helix spring should always be adjusted within its limits before helix change is performedThe normal rate of change between helix angle steps is 250 RPM under full throttleThis is approximately the same result as in going from the No1 to No4 spring positionNOTE: Increasing spring tension increases engine RPMRPM changes may not be evident if other drive or driven clutch components are substandardOn most models the production helix spring hole location is No2Tension the spring 13 turnInstall helix key, thrust washer and snap ringPolaris has several helix angles available for the driven clutchRefer to the chart below for specific angle effects and identificationSee NOTE: belowDescription 34 34M 36 36M 38 40 42 44 40-36 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R32 R12 R49 T-1 36.5 40-38-36 38-36 38-36-34 34 34 PN 5130896 5130751 5130895 5130717 5130723 5130724 5130725 5130726 5130898 5131287 5131288 5131289 5131290 5131291 5131292 5131293 5131294 5131295 5131296 5131297 5131623 5131298 5133023 5131013 5130383 5131161 5131162 5131163 5131164 5131164 Degrees 34 34 36 36 38 40 42 44 40-36 40-32 42-32 45-32 50-32 40-34 42-34 45-34 50-34 40-36 42-36 45-36 50-34 50-36 5234 42-36-34 36.5 40-38-36 38-36 38-36-34 34 34 System Type P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P85 P90 P90 P90 P90 P90 P90