Suzuki VZ800 Service Manual page 89

PISTON PIN AND PIN BORE
Using a small bore gauge, measure the piston pin bore inside
diameter, and using a micrometer, measure the piston pin out-
side diameter. If the reading exceeds following limit, replace
both piston and piston pin.
 Piston pin bore I.D.
Service Limit: 20.030 mm (0.7886 in)
 09900-20602: Dial gauge (1/1 000 mm, 1 mm)
09900-22403: Small bore gauge (18 – 35 mm)
Using a micrometer, measure the piston pin outside diameter at
three positions.
 Piston pin O.D.
Service Limit: 19.980 mm (0.7866 in)
 09900-20205: Micrometer (0 – 25 mm)
PISTON RING REASSEMBLY
• Install the piston rings in the order of oil ring, 2nd ring and 1st
ring.
• The first member to go into the oil ring groove is a spacer 1.
After placing the spacer, fit the two side rails 2.
NOTE:
Side designations, top and bottom, are not applied to the spacer
and side rails: you can position each either way.

When installing the spacer, be careful not to allow its
two ends to overlap in the groove.
• Install the 2nd ring 3 and the 1st ring 4.
NOTE:
1st ring and 2nd ring differ in shape.
ENGINE 3-43