Engine NOTE: Whenever a part is worn excessively, cracked, or damaged in any way, replacement is necessary. SPECIAL TOOLS
A number of special tools must be available to the technician when performing service procedures in this engine section. NOTE: When indicated for use, each special tool
will be identified by its specific name, as shown in the chart below, and capitalized. Description Drive Clutch Bolt Tool
p/n 0644-281
Drive Clutch Puller
0744-062
Drive Clutch Spanner Wrench
0644-136
Engine Lift Plate
0744-073
Hood Harness Extension
1686-659
NOTE: Special tools are available from the Arctic Cat Service Parts Department.
CAUTION Never attempt to substitute any other drive clutch puller for the recommended puller or severe clutch or crankshaft damage will occur.
Engine Removing/Installing
YM-176A
3. Remove the gas tank assembly. 4. Remove the cap screw from the secondary sheave and slide the secondary sheave (along with the drive belt) off the driven shaft. Account for alignment washers and sheave adjuster. 5. Remove the cap screw and washer securing the primary sheave to the crankshaft. 6. Using Primary Sheave Puller, tighten the puller. Remove the primary sheave. NOTE: If the primary sheave will not release, sharply strike the head of the puller. Repeat this step until the sheave releases.
7. Remove the Torx-head screws and both access plates from beneath the snowmobile. 8. Place a drain pan beneath the engine oil drain screw; then remove the screw and allow the oil to drain completely. After the oil has drained, install the drain plug and tighten to 7.2 ft-lb.
This engine sub-section has been organized to show a progression for the removing/installing the Arctic Cat 9000 engine. For consistency purposes, this sub-section shows a complete and thorough progression; however, for efficiency it may be preferable to remove only those components needing to be addressed. Also, some components may vary from model to model. The technician should use discretion and sound judgment.
Removing YM-152A
NOTE: While removing the engine, note all cable tie
locations.
1. Remove both access panels; then loosen the two quarter-turns securing the hood. Disconnect the hood harness and pull the hood forward and off of the snowmobile. 2. Remove the seat; then remove the gas cap and retaining nut from the neck of the gas tank. Remove the eight screws securing the console. Remove the console.
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9. Remove the four Torx-head screws securing the right-side footrest to the tunnel and the support; then with a drain pan in position, remove the drain plug from the oil tank.
