Yamaha 150AET - Cylinder Body Assembly Procedures; Installing the Crankshaft Assembly; Installing Piston and Connecting Rod Assemblies

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POWR
E
CYLINDER BODY ASSEMBLY
INSTALLING THE CRANKSHAFT
ASSEMBLY 5
Install:
• Cylinder body
• Crankshaft assembly
NOTE:
• Align the crankshaft labyrinth ring end
gaps with their respective locating pins.
• Install the bearing locating pins into the
cylinder body.
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INSTALLING THE PISTON AND
CONNECTING ROD ASSEMBLIES 5
Install:
• Piston and connecting rod assembly
NOTE:
• Before installing the piston and connect-
ing rod assemblies, lubricate the cylinder
walls with 2-stroke outboard engine oil.
• Reinstall the piston and connecting rod
assemblies in their original cylinders.
• Install the piston and connecting rod
assemblies with the “S” mark in the star-
board side cylinders, and those with the
“P” mark in the port side cylinders.
• The “UP” mark on the piston crown must
face towards the flywheel.
Piston ring compressor
YU-33294 / 90890-06530
5580
5590