A
B
C
D
E
F
G
H
L
M
N
P
section
N 5
1051098/1098S - M.Y. 2007 - edition 00
Engine
Overhauling the piston
Clean the piston crown and piston ring grooves of any carbon deposits.
Inspect the piston and check its dimensions carefully: there must be no signs of scuffing, scoring, cracks, or other damage.
The piston diameter must be measured at 7.5 mm up from the bottom of the skirt at a 90º angle to the gudgeon pin.
The pistons must always be renewed as a pair.
Checking the piston-cylinder clearance
The pistons are marked by a letter (punched into the piston crown) that indicates the size class to which they belong.
Always match cylinders with pistons from the same size class.
For the values, refer to Sect. C 1.1.
7,5 mm
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