Echo SRM - 2100SB Service Manual

Model
SRM-2100SB
SRM-2400SB
E
ngine
Idling speed rpm
2400-3200
2400-3200
Operating
speed w/ Nylon line head rpm
8000-9000 8500-9500
wl Blade(Option) rpm
9500- 11000
9500- 11000
Clutch
-in speed rpm
3400-3800
3400-3800
Compression
pressure, standard kgf/cm2(psi)
7.0(100) 7.5 (107)
I nition system
Spark plug gap
mm(in)
0.6- 0.7 (0.024- 0.028)
Minimum secondary voltage at
1000
rpm kV
15
Secondary coil resistance kQ
1.3- 1.8
Pole shoe air gaps mm(in)
0.3 - 0.4 (0.012 - 0.016)
Ignition timing
0
BTDC
( 33) 28
28
1-2 Technical data
g
BTDC: Before top dead center.
1-3 Carburetor data
Carburetor Model
C1U-K47
I
C1U-K52
WT-424A
I
WT-4248
Type
Diaphragm horizontal-draught
Supplier
ZAMA
Walbro
Venturi Size mm(in)
8.5 (0.335)
7.94 (5/16)
Throttle Bore mm(in)
12.7 ( 1/2 )
12.7 ( 1/2 )
Idle speed screw initial setting_ turn in
3-4
3-4
Test Pressure, minimum
kgf/cm2(psi)
0.5 (7.0)
Metering lever height mm(in)
lower than diaphragm seat
0.1 - 0.25 (0.004 - 0.010)
1.65 (0.065)
Applicable model
SRM-210058
SRM-240058

Echo SRM - 2100SB Specifications

General

Brand	Echo
Model	SRM - 2100SB
Category	Trimmer
Language	English