Troubleshooting - Echo CS-3000 Type 1E, CS-3400 Type 1E, CS-3450 Type 1E Operator's Manual

Poor performance of the engine and/or cutting mechanism can normally be prevented by carefully following the above instruc-
tions.
Poor performance can easily be corrected even by a beginner.
When the engine does not function properly check the following three (3) points first.
• Is the engine compression adequate?
• Is fuel 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 TROUBLESHOOTING refer to tables 1 and 2. Locate the problem on the following charts and repair as necessary.
Table 1

TROUBLESHOOTING

Fuel is not reaching
carburetor
○ ○ ○ ○ ○
Fuel is not reaching
cylinder
○ ○ ○ ○ ○ ○
No spark at high tension
cord end.
○ ○ ○
No spark at plug
○ ○
Fuel does not
keep running
○ ○ ○
Acceleration
and low speed
function
○ ○ ○
defective
Carburetor
overflow
○ ○ ○
Engine does
not crank
○ ○ ○ ○ ○
17
Fuel strainer clogged ................................... Clean.
Fuel pipe clogged ......................................... Clean.
Suction insufficient ....................................... Make sufficient.
Strainer clogged ........................................... Clean.
Carburetor out of order ................................. Disassemble and check.
C.D.I. module defective ................................ Remove and replace.
Ignition coil defective .................................... Remove and replace.
Wire connection defective ............................. Reconnect.
High-tension cord connection defective ......... Repair as necessary.
Switch is grounded ....................................... Switch on.
Insulator cracked .......................................... Replace plug.
Spark gap incorrect ...................................... Adjust.
Covered with carbon .................................... Clean or replace.
Fouled with fuel ............................................ Clean or replace.
Starting procedures incorrect ....................... Start correctly.
Low and high speed needle ........................... Readjust.
setting too lean
Metering lever spring too strong .................. Readjust.
Fuel pump diaphragm defective .................... Replace.
Fuel passage clogged with dust .................... Disassemble and clean.
Fuel leaking from fixing surfaces .................. Retighten all screws.
of carburetor
Air valve, fuel tank cap does not
work normally ............................................... Replace or Clean.
Fuel pump does not operate .......................... Check impulse drilling.
Fuel inlet needle valve clogged with dust ....... Clean.
Metering lever spring not placed
in dent of lever .............................................. Correct.
Muffler sticky with fuel ................................. Fuel mixture is too rich
Bearing damaged ......................................... Disassemble and replace.
Piston and/or cylinder seized ........................ Disassemble and replace.
Crankshaft worn ........................................... Disassemble and replace.
Crankshaft contacting crankcase .................. Disassemble and replace.
Start the engine several times
with choke rod fully open and
run at fast idle until engine does
not smoke.