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Adjustments, Carburetor adjustment warning – Briggs & Stratton 406700 User Manual

Page 14

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277v40,44 - page 14 (Black)
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14

ADJUSTMENTS

TO ADJUST REMOTE THROTTLE CONTROL

If the engine does not start or if it runs roughly, the remote
throttle control may need adjustment. See your authorized
Briggs & Stratton dealer or follow the instructions below.

[1]

Remove air cleaner.

[2]

Move throttle control to FAST. (Swivel should be
against throttle stop.)

[3]

If not, loosen casing clamp screw. Move casing
and wire in direction shown by arrow until swivel is
against throttle stop.

[4]

Tighten casing clamp screw. Replace air cleaner.

CASING

CLAMP

SCREW

SWIVEL

THROTTLE

STOP

CARBURETOR ADJUSTMENT

WARNING

The manufacturer of the equipment on which this
engine is installed specifies top speed at which the
engine will be operated. DO NOT EXCEED this speed.

Differences in fuel, temperature, altitude or load may
require minor carburetor adjustment. Air cleaner and air
cleaner cover must be assembled to carburetor before
starting engine.

The carburetor on this engine is low emission. It is not
adjustable except for idle speed. Governed idle speed
is1750 rpm, set at the factory.

TO ADJUST CARBURETOR

[1]

Start engine and warm up approximately 5 minutes
before adjusting.

[2]

With engine running, place throttle control in SLOW
position.

[3]

Rotate carburetor throttle lever against the idle
speed screw and hold it.

[4]

Turn idle speed screw to obtain 1500 rpm.

[5]

Release carburetor throttle lever. Move throttle
control to FAST position. Engine should accelerate
smoothly.

IDLE

SPEED

SCREW

CARBURETOR

THROTTLE

LEVER

Note: Engines operated at about 3000 to 5000 feet (900 to
1500 meters) above sea level may require a high altitude
carburetor main jet. If erratic performance is observed,
contact a Briggs & Stratton Authorized Service Dealer for
cost to install/purchase a high altitude carburetor main jet.