Echo SRM-400 - Manual (Page 17)

17
CAUTION
When strarting, idling adjustment speed
should be adjusted not to rotate the cutting
attachment. Correct idle speed is adjusted
2,900 to 3,100 r/min. Or 1/4 turn counter
clockwise from the point the cutting
attachment stops moving. When there is
some trouble with the carburetor, refer to
your distributor or dealer.
Idle speed adjustment screw (T)
WARNING DANGER
CUTTING ATTACHMENT MUST NOT TURN
OR MOVE WHEN UNIT IS IDLING.
CARBURETOR ADJUSTMENT
Every unit is run at the factory and the carburetor is
set in compliance with California Emission Regula-
tions, in addition.
1. Before adjusting carburetor clean or replace air
filter and muffler, “Spark Arrestor Screen”.
2. Make sure the cutting attachment such as
hedge clipper blades or circular saw are
properly adjusted. Trimmer line should be
extended to cut-off knife.
3. Start engine and run several minutes to bring to
operating temperature. Flash choke twice
during warm-up to clear any air from the fuel
system.
4. Idle Speed Adjustment
• Start engine, turn “idle” speed adjustment
screw CW until the cutting attachment begins
to turn, then turn screw out CCW until
attachment stops turning. Turn screw out,
CCW, an addtional 1/4 turn.
SPARK PLUG
• Check periodically.
• Standard spark plug gap is 0.6 to 0.7 mm
(0.024 to 0.028 in).
• Replace if either electrode is worn or if the
insulator is fouled by oil or other deposits.
• TORQUE = 14.2 to 15.2 N•m (125 to 135 in lb)
CAUTION
Do not over torque.
0.6 - 0.7 mm (.024 - .028 in)
Gear housing
Bolt
GEAR HOUSING
• Remove the bolt every 50 hours and check.
• Replenish as necessary, but do not overfill.
- Shell delpena or good quality lithium multi
grease is recommendable.