Adjustment of accelerator cable / Adjustment of carburetor idle speed – SM 250

Standard free distance    =  2 – 6 mm.

Adjust the free distance of accelerator cable
  • Loosen nut ①
  • Adjust nut ② to get the freedistance as standard.
  • Tighten nut ①


Adjusting the idle speed
  • Start the engine and allow it to warm 1 – 2 minute
  • Adjust the idle speed by turning the screw ① on the carburetor to achieve idle. Meets the standard set


Standard idle speed = 1,400 ±100 r/min
Note  :  Adjustment screw ①
  • Turn the screw clockwise = engine idle speed increase.
  • Turn the screw counterclockwise = engine idle speed decrease.

Before adjust the free distance of throttle cable. Should be adjust the engine idle speed to the standard first.

“Can't find what you want?”