Piston And Cylinder - Suzuki drz 400E Service Manual

First, install a spacer 1 into the oil ring groove, and then
install the two side rails 2. The spacer and side rails do not
have a designated top and bottom. They can be installed in
any position.
When installing the spacer, be careful not to allow its
two ends to overlap in the groove.
È INCORRECT
É CORRECT
Position the piston ring gaps as shown. Before inserting the
piston into its cylinder, check that the gaps are properly posi-
tioned.
A Exhaust side
B Intake side
3 2nd ring and lower side rail
4 Upper side rail
5 1st ring and spacer

PISTON AND CYLINDER

Install the piston and cylinder in the reverse order of removal.
NOTE:
Install the piston with the punch mark on the piston head facing
toward the exhaust side.
Apply molybdenum oil solution onto the piston pin.
Apply molybdenum oil solution to the small end of the conrod.
Place a clean rag over the cylinder base to prevent the piston
pin circlip from dropping into the crankcase, and then fit the
piston pin circlip with long-nose pliers.
Use a new piston pin circlip to prevent circlip failure
with a bent one.
Apply engine oil to the sliding surface of the piston and big
end of the conrod.
ENGINE 3-59