Suzuki DF 2.5 Service Manual page 99

CRANKSHAFT AND PISTON TO CYLINDER
1. Apply engine oil to the crankshaft journals, the crank pin and
the bearing.
2. Apply the Water Resistant Grease to the lip of the upper oil
seal.
 09900-25161: SUZUKI WATER RESISTANT GREASE
3. Install the crankshaft 1 to the cylinder block.
4. Apply engine oil to the piston and the cylinder wall.
5. Insert the piston/conrod assembly into the cylinder bore from
the cylinder head side using the piston ring compressor.
 Piston ring compressor
NOTE:
Position the " " mark on the piston head to the flywheel side.
POWER UNIT 6-33
Flywheel side
Mark " "