Echo CS-420ES Service Manual

51
ENGINE
CS-370ES
CS-420ES
7-12 Installing engine block
1. Assemble muffler gasket and muffler (A) to
cylinder.
2. Assemble gasket (B), intake bellows (C) and pulse
line (D) to cylinder.
3. Pass pulse line (D) through hole (E) of intake
insulator. Install the flange (F) of intake bellows in
hole (G) of intake insulator.
4. Apply 2 stroke engine oil to the both sides and
bottom (h) of intake insulator cushion (H).
5. Mount engine block on engine cover (J) while
installing intake insulator cushion (H) with intake
insulator (K) into the grooves (L) of engine cover.
6. Tighten 4 bolts (M) at unit bottom to secure engine
block to engine cover. Install all other removed parts.
D
E
F
G
A
C
B
D
J
K
L
M
h
h
h
H
H

Echo CS-420ES Specifications

General

Saw Chain Gauge	0.050 inches
Fuel Capacity	0.41 liters
Weight	4.6 kg
Saw Chain Pitch	3/8 inches
Bar Length	16 inches