17
POWER BLOWER
OPERATOR'S MANUAL
AIR FILTER
Level 1.
Tools required: Cleaning brush, 25 mm or 50 mm medium bristle paint
brush.
Parts required: 90008 REPOWER AIR & FUEL FILTER KIT.
NOTE
Clean daily.
1. Close choke, remove wing nut, air cleaner cover and air filter.
2. Brush dust off filter.
CARBURETTOR ADJUSTMENT - GENERAL
Level 2.
Tools required: Screwdriver, tachometer.
Parts required: none.
NOTE
Do not adjust carburetor unless necessary. If you have difficultly,
see your ECHO dealer.
Adjusters
Idle Speed Adjuster (T) Control throttle opening at idle.
Low Speed Mixture Adjuster (L) Controls amount of fuel at low
speed and supplementary fuel for
smooth progression from idle to
high speed.
High Speed Mixture Adjuster (H) Controls amount of fuel at full
throttle
Before Adjustment
Check that:
- Air filter is clean and properly installed.
- Spark arrestor screen and exhaust port are free of carbon
- Blower pipes are installed
Initial Adjustment
1. With engine off, turn H adjuster anticlockwise to stop.
2. Turn L adjuster midway between stops.
3. Turn T adjuster until tip of adjuster just touches throttle plate;
then turn three turns clockwise.
H
T
L
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