Technical Data; Carburetor Data - Echo SRM-2100SB Service Manual

1-2 Technical data

Model
E ngine
Idling speed
Operating speed w/ Nylon line head
wl
Clutch-in speed
Compression pressure, standard kgf/cm2(psi)
I nition system
g
Spark plug gap
Minimum secondary voltage at
Secondary coil resistance
Pole shoe air gaps
Ignition timing
BTDC: Before top dead center.

1-3 Carburetor data

Carburetor Model
Type
Supplier
Venturi Size
Throttle Bore
Idle speed screw initial setting_ turn in
Test Pressure, minimum
Metering lever height
lower than diaphragm seat
Applicable model
rpm
rpm
Blade(Option) rpm
rpm
mm(in)
1000 rpm kV
kQ
mm(in)
0 BTDC
C1U-K47
8.5 (0.335)
mm(in)
12.7(1/2)
mm(in)
kgf/cm2(psi)
mm(in)
0.1 - 0.25 (0.004 - 0.010)
SRM-210058
SRM-2100SB
2400-3200
8000-9000
9500- 11000
3400-3800
7.0(100)
0.6- 0.7 (0.024- 0.028)
0.3 - 0.4 (0.012 - 0.016)
( 33) 28
I
C1U-K52
Diaphragm horizontal-draught
ZAMA
3-4
0.5 (7.0)
SRM-2400SB
2400-3200
8500-9500
9500- 11000
3400-3800
7.5 (107)
15
1.3- 1.8
28
I
WT-424A WT-4248
Walbro
7.94 (5/16)
12.7 ( 1/2)
3-4
1.65 (0.065)
SRM-240058