Zenoah BT251 Owner's Manual page 11

8. Operation
STOPPING ENGINE
1. Release the throttle lever and run the engine for half
a minute.
2. Shift the ignition switch to the STOP position.
IMPORTANT
• Except for an emergency, avoid stopping the engine
while pulling the throttle lever.
ADJUSTING THROTTLE CABLE
• The normal play is 1 or 2 mm when measured at the
carburetor side end. Readjust with the cable adjuster
as required.
(2)
(1)
ADJUSTING IDLING SPEED
(1)
1. When the engine tends to stop frequently at idling
mode, turn the adjusting screw clockwise.
2. When the cutting head keeps rotating after releasing
the trigger, turn the adjusting screw counter-clockwise.
NOTE
• Warm up the engine before adjusting the idling speed.
(1) Ignition switch
(2) Stop
(3) Start
(1) Cable adjuster
(2) 1~2mm (0.04in)
(1) Idle adjusting screw
BT251
G
B
GB-11