um DSR EX 125 Workshop Manual page 88

ASSEMBLING THE ENGINE
AND ADJUSTMENTS
Fit:
- The comparer (6) onto the TDC measuring tool (7).
N.B.:
PLACE THE COMPARER ON A FLAT SURFACE AND ADJUST
CORRECTLY (0).
Fit:
- The TDC measuring tool (7), using 2 cylinder head bolts.
TDC measuring tool:
Ref. 864592
Position:
- The piston at TDC.
- Take a reading of the measurement on the comparer.
- Choose the cylinder gasket (see table).
N.B.:
THE CYLINDER GASKET THICKNESS MUST BE CALCULATED TO
ESTABLISH THE APPROPRIATE COMPRESSION RATIO.
THERE ARE THREE THICKNESSES OF GASKET AVAILABLE: 0.3
0.4 AND 0.5 MM.
PERFORM THE CALCULATION WITH THE COMPARER WITHOUT
FITTING ANY GASKET.
TDC measurement
0.95 / 1.09
1.1 / 1.25
1.26 /1.45
86 WORKSHOP MANUAL
Thickness of Gasket
0.3 ± 0.05
Go to spare parts catalogs
0.4 ± 0.05
Go to spare parts catalogs
0.5 ± 0.05
Go to spare parts catalogs
6
7
Reference
CM22801
CM222802
CM222803
7