um DSR EX 125 Workshop Manual page 32

REGULAR INSPECTION
AND ADJUSTMENTS
Compression pressure (at sea level):
Standard:
1200 kPa (12 kg/cm 2 )
Minimum:
1040 kPa (10,4 kg/cm 2 )
Steps for removal:
- Start the engine with the throttle completely open, until the
comprerssion reading stabilises.
WARNING:
BEFORE STARTING THE ENGINE CONNECT THE SPARK
PLUG WITH HANDLE TO PREVENT SPARKS.
Fit:
- Spark plug.
30 WORKSHOP MANUAL