Idle system problems (the engine has high revs when the accelerator throttle)

Model SM150 / SM250 / MAKINA250SP+ / MAKINA250 DUAL CAFA / MAKINA250 DUAL TRACK
Observation point

When the accelerator is fully thrown while parking the engine speed is too high.

1     Screw, adjustable idle screw

  1. Start the engine Let the engine run for about 5 minutes (to keep the engine at operating temperature). Parked for a long time Or cold engine
  2. Make adjustments at the idle adjustment screw. Tighten it in a counterclockwise direction. Engine speed will be lower
  1. Check to see if the engine speed is too high or not when the accelerator pedal is maximized.
  2. Make adjustments at the idle adjustment screw. Where the engine has idle speed And has a stable engine speed and does not stop
  3. Check the speed that is within the standard engine idle = 1,400 ± 100 r / min or not. If not in the standard setting It will lead to further solutions to the problem.
 
Troubleshooting parts

– without

 
Tools / equipment used

– Small flat screwdriver

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