Technical Data - Echo shindaiwa CS-501SX Service Manual

CS-501SX, CS-501SXH
501sx

1-2 Technical data

Models
Engine
Compression pressure
Clutch engagement speed
Ignition system
Spark plug gap
Spark test Tester gap w/ spark plug
Tester gap w/o spark plug
Secondary coil resistance
Pole shoe air gaps
Ignition timing
Carburetor
Test Pressure, minimum
Metering lever height
Tool to adjust mixture needles
Carburetor adjustment
Before carburetor adjustment :
1) Initial setting
Engine warm-up
2) Find idle maximum speed
3) Set idle maximum speed w/ TAS
4) Set idle speed
by turning L mixture needle CCW
5) Confi rm H mixture needle position
before WOT setting
6) WOT setting
7) Verify fi nal engine speed with standard equipment
8) Verify clutch engagement speed
Chain oil discharge volume at 7,000 r/min
BTDC: Before top dead center WOT: Wide open throttle CCW: Counterclockwise TAS: Throttle adjust screw
1
* Set Throttle adjust screw to the point that its tip just contacts throttle plate before initial setting.
2
* If chain starts to rotate during adjustment process step 2), decrease engine speed by turning TAS CCW
until chain stops and then redo step 2). Repeat this until chain no longer rotates after the adjustment step 2).
SERVICE INFORMATION
MPa (kgf/cm
mm(in)
mm(in)
mm(in)
mm(in)
at 3,000 r/min °BTDC
at 8,000 r/min °BTDC
at 10,000 r/min °BTDC
MPa (kgf/cm
mm(in)
H mixture needle turn out
L mixture needle turn out
Throttle adjust screw turn in*
Idle - WOT : Total
mL/min (US.fl .oz./min)
CS-501SX, 501sx
2
) (psi)
r/min
0.6 - 0.7 (0.024 - 0.028)
kΩ
0.3 - 0.4 (0.012 - 0.016)
20
32
34
2
) (psi)
1.65 (0.06) lower than diaphragm seat
D-shaped tool (L) P/N X645-000031
(Carb. adjustment tool P/N Y089-000094)
---
1
sec.
Adjust L mixture needle to maximum idle speed*
r/min
r/min
Turn H mixture needle CCW to confi rm engine speed
decreases less than or equal to 12,500 r/min.
r/min Turn H mixture needle CW in 1/8 turn increments
with the engine at idle, then accelerate to WOT and
check engine speed.The fi nal engine speed should
fall within: 13,000 - 13,800
r/min WOT: 13,000 - 13,800
Confi rm clutch engagement speed.
If it is less than 1.25 times the idle speed, adjust
the idle speed by turning TAS CCW.
Ajustable: 3.0 - 16.5 (0.12 - 0.65)
(Factory set: 7 mL/min)
CS-501SXH
0.95 (9.7) (138)
3,900
4.0 (0.16)
6.0 (0.24)
2.5 - 2.9
19
30
34
0.05 (0.5) (7.0)
Turn off heater switch.
3 5/8
1 3/4
2 1/8
5 - 5 : 100
3,500
2,700
Idle: 2,300 - 3,100
3
2