If necessary, adjust the position of the pressure plate of the air flow meter by bending the clip 2 with the spring (see photo), after removing the lower housing of the mixture regulator.
Note. If the pressure plate of the air flow meter is above the specified level, backfires occur during misfiring. With the low position of the pressure disk, it is difficult to start both a cold, hot and hot engine.
Check the centering of the pressure disc by placing a 0.10 mm spacer in succession at four points around the circumference.
If the position of the pressure disc is incorrect, lower the adjusting screw 3 and center the pressure disc, then tighten the screw 3 to a torque of 0.5 kgf·m.
Adjust engine idle.
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