Air damper gap adjustment
1 - membrane rod, 2 - elastic band fixing the drive lever, 3 - drive lever, 4 - screwdriver
Air damper gap measurement
1 - calibrated rod or drill shank, 2 - screwdriver, 3 - throttle actuator lever
Trigger Adjustment Marks
Adjustment of the air damper gap must be made after disassembling the carburetor or in case of insufficient engine performance.
1. Remove the earth wire from the battery and the air filter.
2. Make marks, unscrew 3 screws fixing the flange, remove the flange and starter cover.
3. Remove shield ring.
4. Set throttle lever to full open position.
5. Move the trigger lever up until the air dampers are completely closed and release the throttle actuator lever.
6. Fix the leash lever in the upper position with an elastic band.
7. Use a screwdriver to push the diaphragm rod in until it stops.
8. Measure with a calibrated rod (can shank drill) air damper gap.
9. If the gap does not correspond to the required value, remove the protective cap from the adjusting screw and, turning the adjusting screw with a screwdriver, set the required gap.
10. Install the shield ring.
11. Install the cover with a bimetallic spring, while aligning the installation marks. To adjust the mixture, you can turn the cover with a bimetallic spring in one direction or the other.
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