Filter
Top Products
Using Troubleshooting Chart
WARNING: Always stop unit and disconnect spark plug before performing all of the recommended
remedies below except remedies that require operation of the unit.
When you have checked all the possible causes listed and you are still experiencing the problem, see your
Servicing Dealer. If you are experiencing a problem that is not listed in this chart, see your Servicing Dealer for
service.
PROBLEM POSSIBLE CAUSE SOLUTION
ƽ
35
en
TROUBLESHOOTING
Engine will not start or will
run only a few seconds after
starting.
(Make sure Ignition switch
is in start position “I”)
Engine starts but will not
accelerate properly:
Engine starts but will not run
properly at high speed.
Engine does not reach full
speed and / or emits excessi-
ve smoke
Engine starts, runs, and
accelerates but will not idle.
Bar and Chain Running Hot
and Smoking
Engine starts and runs, but
chain is not rotating
WARNING: Never
touch the chain while
the engine is running.
1. No spark
2. Flooded engine.
Carburetor requires
“L” (Low jet)
adjustment.
Carburetor requires
“H” (High jet)
adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Spark arrester screen dirty.
4.Carburetor requires
“H” (High jet)
adjustment.
Carburetor requires adjustment.
1. Chain oil tank empty.
2. Chain tension too tight.
3. Oiler function.
1. Chain brake engaged.
2. Chain tension too tight.
3. Guide bar and chain assembly.
4. Chain and/or guide bar damaged.
5.Clutch drum and/or rim sprocket
damaged.
1.Check Spark. Remove air filter cover. Remove
spark plug from cylinder. Reattach the spark
plug wire and lay spark plug on top of cylinder.
Pull the starter rope and watch for spark at
spark plug tip. If there is no spark, repeat test
with a new spark plug (CMR6A).
2.With the ignition switch off, remove spark plug.
Move choke lever to Run position (pushed in
completely) and pull starter cord 15 to 20 times.
This will clear excess fuel from engine. Clean
and reinstall spark plug. Pull the choke lever all
out and then insert it completely in order to acti-
vate the semi-acceleration device. Pull starter
three times with choke lever at run. If engine
does not start, move choke lever to choke and
repeat normal starting procedure. If engine still
fails to start, repeat procedure with a new spark
plug.
* Contact a Servicing Dealer for carburetor adju-
stment.
* Contact a Servicing Dealer for carburetor adju-
stment.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean per instruction in Maintenance-Air Filter
Section.
3. Clean per instructions in Maintenance-Spark
Arresting Muffler Section.
4. * Contact a Servicing Dealer for carburetor
adjustment.
Turn idle speed screw
“T” clockwise to increase
idle speed. (If chain turns at idle, turn idle speed
screw
“T” counterclockwise to decrease speed);
see Operation-Carburetor Adjustment.
1. Oil tank should be filled every time that fuel
tank is filled.
2. Tension chain per instructions in Operation-
Chain Tension section.
3. Run at full throttle 15 to 30 seconds. Stop saw
and check for oil dripping from bar tip guard
and guide bar. If oil is present the chain may
be dull or bar may be damaged. If no oil con-
tact a Servicing Dealer.
1. Release chain brake, see Operation-Chain
Brake Section.
2. Tension chain per instructions in Operation-
Chain Tension section.
3. Refer to Assembly-Assembling the Bar and
Chain Section.
4. Refer to Maintenance-Chain and/or
Maintenance-Guide Bar Section.
5. Replace if necessary - contact a Servicing
Dealer.
*Note: This engine complies with EPA (Environmental Protection Agency) and CARB (California Air Resource Board)
regulations which require exhaust emission control. As a result, the carburetor adjustment needles are equipped with
plastic caps that limit the rotation from the original factory adjustment. If your unit exhibits specific performance problems
that can not be corrected by the Trouble Shooting Section, the unit should be taken to a Servicing Dealer for repair.
ƽ