Automatic Compression Release Installation; Camshaft Inspection - Polaris 2009 Trail Boss 330 Service Manual

ENGINE
CAMSHAFT REMOVAL CONT'D
6. Inspect cam sprocket teeth for wear or damage.
Replace if necessary.
Inspect for Areas of
Tooth Wear or Damage
7. Remove camshaft.
Return spring (spacer)
Dowel pin
Release lever
AUTOMATIC COMPRESSION
RELEASE REMOVAL/
INSPECTION
NOTE: The automatic compression release
mechanism can be inspected and serviced without
removing the camshaft from the cylinder head.
1. Check release lever shaft for smooth operation
throughout the entire range of rotation.
3.14
2. Remove release lever shaft and return spring
(spacer).
3. Inspect shaft for wear or galling.
4. Inspect lobe on end of release lever shaft for wear
and replace if necessary.
AUTOMATIC COMPRESSION
RELEASE INSTALLATION
1. Slide spring onto shaft.
2. Apply engine oil to release lever shaft.

CAMSHAFT INSPECTION

1. Visually inspect each cam lobe for wear, chafing
or damage.
Lobe height
Cam Lobe Height
Intake
Std: 1.3001-1.3041I (33.023-33.123 mm)
Limit: 1.2883I (32.723 mm)
Exhaust
Std: 1.3007-1.3047I (33.039-33.139 mm)
Limit: 1.2889I (32.739 mm)
Lobe
Lubrication holes