Trouble Shooting - Echo CS-330EVL Operator's Manual

TROUBLE SHOOTING
Poor performance of the engine and/or trimming mechanism can normally be prevented by carefully following
instructions.
Poor performances can eacily be corrected even by a beginner.
When the engine does not function properly check the following three (3) points first.
• Is engine compression adequate?
• Is fL;el system in good condition and is enough fuel being supplied?
• Is electrical system in good condition and is spark plug operating normally?
When there is serious trouble with the unit, do not try to repair it yourself but have your distributor or dealer do it for you.
For detailed TROUBLE SHOOTING refer to tables 1 and 2. Locate the problem on the following charts and repair as nece-
ssary.
Table 1
Fuel is not i_Fuel strainer clogged ......... Clean.
reaching .........
!
carburat0r L--Fuel pipe clogged .......... Clean.
A
®
_3 == ._-
o ,-=
_ u-.-..£
c J=
o o
.s -_
€
Fuel is not r--Suction insufficient
...........
Make sufficient.
reaching ......... _-- Strainer clogged ............. Clean,
cylinder L.. Carburator out of order ...... Disassemble and check.
"O
.€
J:
==
,8 I
,,= ._=
_o
®o
===
C_
u_
- C.D.L module defective ........ Remove and replace.
- ignition coll defective ......... Remove and replace.
No spark at high,. -Wire connection defective .... Reconnect,
tension cord end
High.tension cord ......... Repair as necessary
--connection defective
- Switch is grounded ........... Switch on.
- Insulator cracked ............. Replace plug.
[
No spark at plug., [- Spark gap incorrect ........ Adjust
t
--Covered with carbon ......... Clean or replace.
- Fouled with fuel .............. Clean or replace,
_- Fue does
not keep ..........
*) _ running
!
J=
I-- :3 I
overflow
Starting procedures .......... Start correctly.
incorrect
Low and high speed needle Read ust
setting too lean ........ " "
Metering lever spring i
too strong ......... Read ust
Fuel pump diaphragm Replace
detective .......... _ "
Fuel passage clogged ......... Disasaemb • and clean,
with dust
Fuel leaking from fixing Retighten all screws.
surfaces of carburetor .......
Air valve, fuel tank cap =_=_ =.... p =_
does not work normally ......... _"............
Fuel pump does not operate.. Check impulse drilling.
r-Fuel inlet needle valve
L clogged with dust ....... Clean.
Metering lever spring not ,, Correct.
placed in dent of lever " "
This is because fuel mixture is
too rich.
Muffler sticky ................ Start the engine several times
sufficient with choke rod fully open and
run at fast idle until engine does
not smoke.
Engine does
not crank
r- Bearing damaged ............. Disassemble and replace,
/
_- Piston end/or cylinder seized. Disassemble and replace.
--Crenkshaft worn ............. Disassemble and replace.
Crankshaft contacting ........ Disassemble and replace,
crankcase
-- 19--