TROUBLESHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICING DEALER.
| PROBLEM | POSSIBLE CAUSE | SOLUTION | ||||
|
|
|
|
|
|
|
|
Engine will not start: | 1. | NO SPARK. | 1. | Check Spark. Remove cylinder cover. Remove spark | |||
(Make sure RUN/STOP switch is |
|
|
| plug from cylinder. Reattach the spark plug wire and | |||
in RUN “I” position.) |
|
|
| lay spark plug on top of muffler or 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. | ||
|
| 2. | NO FUEL. | 2. | Push primer bulb until bulb is full of fuel. If bulb does | ||
|
|
|
|
| not fill, primary fuel delivery system is blocked. Con- | ||
|
|
|
|
| tact a servicing dealer. If primer bulb fills, engine may | ||
|
|
|
|
| be flooded (see next item). | ||
|
| 3. | FLOODED ENGINE. | 3. | With the switch off, remove spark plug. Turn saw so | ||
|
|
|
|
| spark hole is aimed at the ground. Move choke lever to | ||
|
|
|
|
| run and pull starter cord 10 to 15 times. This will clear | ||
|
|
|
|
| excess fuel from engine. Clean and reinstall spark | ||
|
|
|
|
| plug. 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. | ||
|
|
|
|
|
| ||
Engine starts but will not acceler- | CARBURETOR REQUIRES ADJUSTMENT. | *Turn "L" needle counterclockwise 1/16 turn. If “L” low | |||||
ate: |
|
| needle can not be turned counterclockwise, do not force | ||||
|
|
|
| plastic limiter caps. Contact a servicing dealer. | |||
|
|
|
|
|
| ||
Engine starts but will only run at high | CARBURETOR REQUIRES ADJUSTMENT. | *Turn "H" needle counterclockwise 1/16 turn. If “H” high | |||||
speed at |
|
| needle can not be turned counterclockwise, do not force | ||||
|
|
|
| plastic limiter caps. Contact a servicing dealer. |
| ||
Engine does not reach full speed | 1. | CHECK OIL FUEL MIXTURE. | 1. | Use fresh fuel and the correct | |||
and emits excessive smoke: | 2. | AIR FILTER DIRTY. | 2. | Clean per instruction in maintenance section. | |||
|
| 3. | CARBURETOR REQUIRES ADJUSTMENT. | 3. | Turn "H" needle clockwise 1/16 - 1/8 turn. | ||
|
| 4. | SPARK ARRESTOR SCREEN DIRTY. | 4. | Replace per instructions in maintenance section. | ||
|
|
|
|
|
| ||
Engine starts, runs, and acceler- | CARBURETOR REQUIRES ADJUSTMENT. | Turn idle speed screw “T” clockwise to increase idle | |||||
ates but will not idle. |
|
| speed. (If chain continues to turn at idle, screw counter- | ||||
|
|
|
| clockwise to decrease speed). Wear protective equip- | |||
|
|
|
| ment and observe all safety instructions. | |||
|
|
|
|
|
| ||
Bar and Chain Running Hot and | 1. | CHAIN OIL TANK EMPTY. | 1. | Oil tank should be filled every time that fuel tank is | |||
Smoking: |
|
|
| filled. | |||
|
| 2. | CHECK CHAIN TENSION | 2. | Tension chain per instructions in Chain Tension sec- | ||
|
|
|
|
| tion. | ||
|
| 3. | CHECK FOR OILER FUNCTION. | 3. | Run at full throttle 15 to 30 seconds. Stop saw and | ||
|
|
|
|
| check for oil dripping from | ||
|
|
|
|
| oil is present the chain may be dull or bar may be | ||
|
|
|
|
| damaged. If no oil contact a servicing dealer. | ||
|
|
|
|
|
| ||
Chain Not Cutting or Binding: | CHECK GUIDE BAR AND CHAIN. | 1. | Refer to bar and chain maintenance. | ||||
|
|
|
|
|
|
|
|
T
LH
*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 needle(s) are equipped with plastic cap(s) that prevents counterclockwise rotation from the original factory adjustment. If your unit exhibits specific performance problem(s) where the Trouble Shooting Section recommends a counterclockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken to a factory authorized service center for repair. In most cases, the needed adjustment is a simple task for the factory trained service representative.
29
