Joyner TROOPER-T2 Owner's Manual page 74

2. Removal
2.1. 1) Cover-valve chamber
2) Disassembly order of Cover-valve
chamber
2.2. Dismount the timing belt sprocket
with a special tool.
Attention: Manufacture a special tool
according the right figure
A special tool is needed to prevent the
camshaft from rotate,
See figure below.
2.3. Removal of camshaft bearing cover
2.3.1. Align the marks on the camshaft
gears as shown in the right figure.
Timing mark
Air outlet camshaft gear
74
Air inlet camshaft gear