2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 162Get this manual
Engine Mechanical:
Engine Top Side Assembly
Assemble the engine top side in the reverse order of disassemblyPay attention to the following points:
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Position the gaps of the three rings and side rails as shown in the figureBefore inserting piston into the cylinder, check that the gaps are so locatedEX "B" "C"
Piston Apply molybdenum oil solution onto piston pin and small end of conrodMO: Molybdenum oil (MOLYBDENUM OIL SOLUTION) Install the piston and piston pinNOTE When installing the piston, the indent "A" on the piston head must be faced to exhaust side
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"B": 2nd ring and lower side rail "C": Upper side rail "D": 1st ring and spacer