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HIGH ALTITUDE ADJUSTMENT
High altitude adjustment may be required for proper operation of this engine
above 2000 feet.
1. Start engine and run for several minutes to reach operating temperature.
2. Stop engine.
3. Start engine and turn the HI speed needle (A) lean (CW) until the engine
runs between 13,500 and 14,500 RPM. Then turn the LO speed needle
lean (B) (CW) until the engine does not hesitate when accelerated.
DO NOT REMOVE LIMITER CAPS!
4. Idle Speed Adjustment.
• Turn "idle" speed adjustment screw (C) CW until the saw chain begins
to move, then turn the screw CCW until saw chain stops moving. Turn
screw CCW an additional 1/4 turn.
5. Accelerate to full throttle for 2-3 seconds to clear excess fuel from
engine then return to idle. Accelerate to full throttle to check for smooth
transition from idle to full throttle. If engine stops or stalls after full warm
up return the unit to your authorized ECHO dealer for adjustment.
B
A
R
M
O
D
E
L
L
E
N
G
1
" 2
C
S
3 -
3
0
M
X
4
1
" 4
1
" 6
*Reduced nose radius symmetrical bars (OREGON name — Double Guard)
WARNING
Use of replacement saw chain and/or guide bar other than that specified, or operation without the "tip guard" in place, may
cause severe kickback resulting in serious injury.
Only use saw chain designated as, "LOW-KICKBACK," that meets the ANSI B175.1-2000 Standard when tested on the
representative sample of chain saws below 3.8 C.I.P. specified, and the Echo guide bar specified.
IMPORTANT
Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table
above.
IMPORTANT
If your kick guard is damaged or lost, contact your Echo dealer for a replacement. For the name
of the Echo dealer nearest you, Call: 1-800-432-ECHO (3246) or on the web at www.echo-
usa.com.
Refer to your Chain Saw Safety Manual for kick guard application information.
C
G
HAIN AND
The following combinations may be used on CS-330MX4
L
O
W
K
C I
K
B
A
C
K
G
U
A
R
D
B
A
R
T
H
B
A
R
P
N /
1
2
A
0
E
D
3
7
4
5
1
4
A
0
E
D
3
7
5
2
1
6
A
0
E
D
3
7
5
7
B
C
UIDE
AR
OMBINATIONS
L
O
W
K
C I
K
B
C
H
A
N I
L
N I
K
S
P
A
R
T
N
. O
9
1
V
G
4 -
5
4
5
9
1
V
G
5 -
2
5
2
9
1
V
G
5 -
7
5
7
22
LO
A
C
K
S
A
W
C
H
A
N I
T
Y
P
E
P
T I
C
H
G
A
9
1
V
G
/ 3
" 8
0 .
HI
K
C I
K
G
U
A
R
D
E
C
H
O
P
N /
U
G
E
(
O
E
M
P
N /
)
2
8
9
4
9
0
1
5
0
2
8
9
4
9
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