20
Idle Speed Adjustment
Idle speed adjustment may be required periodically to comply with
specifications for this unit. See page 24, "Specifications," for correct
idle speed.
Level 2.
Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).
NOTE
Every unit is run at the factory and the carburetor is set in compli-
ance with emission regulations. This carburetor does not have
acceleration and high speed adjustment needles.
1.
Check idle speed using a tachometer, and reset if necessary. Turn
idle screw (A) clockwise to increase idle speed; counter clockwise
to decrease idle speed.
WARNING
DANGER
When carburetor adjustment is completed, the cutting attachment
should not turn at idle, otherwise serious personal injury may
result.
A
A
B
DRIVE
SHAFT
LUBRICATION
Level 1.
Tools required:
8 mm Open End Wrench, 4 mm Hex Wrench,
Clean rag
Parts Required: ECHO
®
LUBE
TM
8 oz. (P/N 91014) or Lithium Base
Grease.
1.
Loosen two (2) screws (A) and remove center locating screw (B).
Pull gear box and shield from drive shaft housing.
2.
Pull flexible cable from the drive shaft housing, wipe clean and
recoat with a thin coating [15 ml (1/2 oz.)] of grease.
3.
Slide the flexible cable back in the drive housing. DO NOT get
dirt on the flex cable.
4.
Install the gear housing and shield assembly.
CARBURETOR
ADJUSTMENT
Engine Break-In
New engines must be operated for a minimum of two tanks of fuel before carburetor adjustments can be made. During the
break-in period, your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as
required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this engine.
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