PIAGGIO NRG 50 User Manual page 133

NRG 50
- Using the specific tool, fit the second snap ring in
the free slot on the piston.
Specific tooling
020166Y Tool for fitting the pin snap rings
Choosing the gasket
- Fit the cylinder without fitting the base gasket.
Fit a dial gauge on the specific tool and set it to
zero on a horizontal plane.
Specific tooling
020272Y Piston position checking tool
- Assemble the tool on top of the cylinder by fixing
it with two nuts to the stud bolts and bring the pis-
ton to the TDC
- Select the gasket thickness to be fitted according
to the measured value.
Name
shimming
shimming
shimming
S
HIMMING SYSTEM
Measure A
2.80 to 3.04
3.04 to 3.24
3.24÷3.48
Engine
Thickness
0.4
0.6
0.8
ENG - 133