Adjustments - Briggs & Stratton 290000 Operating & Maintenance Instructions

MAINTENANCE
CLEANING DEBRIS
CAUTION: Do not use water to clean engine parts.
Water could contaminate fuel system. Use a brush
or dry cloth.
Daily or before every use, clean accumulated debris from
engine. Keep linkage, springs and controls clean. Keep
area around and behind muffler free of any combustible
debris.
WARNING

ADJUSTMENTS

CONTROL ADJUSTMENTS
WARNING
Prevent unintentional starting.
Before performing adjustments:
• Remove spark plug wires from spark plugs.
• Disconnect battery at negative terminal (only
engines with electric start).
TO ADJUST REMOTE CHOKE CONTROL
CHOKE
CLOSED
[1] Remove air cleaner.
[2] Move choke control to CHOKE or START position.
(Carburetor choke should be completely closed.)
[3] If not, loosen casing clamp screw.
[4] Then move casing, wire and engine choke lever in
direction shown until choke is completely closed.
[5] Tighten casing clamp screw. Replace air cleaner.
Engine parts should be kept
clean to reduce the risk of
overheating and ignition of ac-
cumulated debris.
WIRE AND
CASING
PULL
TO CHOKE
SCREW
CLEAN
Linkage, Springs
and Controls
CLEAN
TO ADJUST REMOTE THROTTLE CONTROL
CASING
CLAMP
SWIVEL
SCREW
THROTTLE STOP
[1] Remove air cleaner. Move throttle control to FAST.
(Swivel should be against throttle stop.)
[2] If not, loosen casing clamp screw. Move casing
and wire in direction shown by arrow until swivel is
against throttle stop.
[3] Tighten casing clamp screw. Replace air cleaner.
TO ADJUST GOVERNED IDLE SPRING
GOVERNED IDLE SPRING
(RED OR WHITE)
[1] Readjust the idle speed to 1200 rpm, if governed idle
spring is red, or 900 rpm, if governed idle spring is white.
[2] Release carburetor throttle lever. Move throttle
control to FAST position. Engine should accelerate
smoothly. If it does not, readjust idle mixture valves
slightly counterclockwise.
14
CLEAN
Finger Rotating
Guard Screen
SPARK
ARRESTER
Muffler and
Spark Arrester
EXHAUST
MANIFOLD
EXHAUST
MANIFOLD
CLEAN