Spark Advance Variation (Version 125) - Derbi GP1 125-250 c.c. Workshop Manual

- Check that the advance degrees match the revolution speed as indicated in the tables.
- In case of abnormal values, check the Pick-Up and the control unit supplies (positive-negative); replace the
control unit, if required.
- A new control unit prevents the engine from rotating at over 2,000 rpm.
- The programmed control unit allows the engine revolution within the prescribed limits.
Specific tooling
020330Y Stroboscopic gun for two- and four-stroke engines
VERSION 125 VERSION 125
SPECIFICATION
Tripping threshold
Restoration threshold
Spark suppression
50
SPARK ADVANCE VARIATION
First threshold: 10700 ±50
Second threshold: 11000 ±50
First threshold: 10600 ±50
Second threshold: 10900 ±50
First threshold: 1 spark out of 7
Second threshold: 2 sparks out of 3
DESC./QUANTITY