HS81A CUT-OFF SAW — TROUBLESHOOTING (ENGINE)
TABLE 4. TROUBLESHOOTING (ENGINE, CONTINUED)
SYMPTOM | POSSIBLE CAUSE | SOLUTION | |
|
|
| |
| Air cleaner not clean? | Clean or replace air cleaner. | |
|
|
| |
|
| Check float adjustment. | |
"Weak in power" compression is proper | Improper fuel level in carburetor? |
| |
Rebuild carburetor. | |||
and does not misfire. |
| ||
|
| ||
| Defective spark plug? | Clean or replace spark plug. | |
|
|
| |
| Improper spark plug gap? | Set to proper gap. | |
|
|
| |
| Water in fuel system? | Flush fuel system and replace | |
| with correct type fuel. | ||
|
| ||
"Weak in power" compression is proper |
|
| |
Ignition coil defective? | Replace ignition coil. | ||
but misfires. | |||
|
|
| |
| Dirty spark plug? | Clean or replace spark plug. | |
|
|
| |
| Wrong fuel type? | Flush fuel system, and replace | |
| with correct type of fuel. | ||
|
| ||
|
|
| |
Engine overheats. | Spark plug heat value improper? | Replace with correct type of | |
| spark plug. | ||
|
| ||
|
|
| |
| Cooling fins dirty? | Clean cooling fins. | |
|
|
| |
| Governor adjusted correctly? | Adjust governor. | |
|
|
| |
Rotational speed fluctuates. | Governor spring defective or missing? | Replace governor spring. | |
|
| ||
| Fuel flow restricted? | Check entire fuel system for | |
| leaks or clogs. | ||
|
| ||
|
|
| |
| Recoil mechanism clogged with dust and | Clean recoil assembly with soap | |
Recoil starter malfunction. | dirt? | and water. | |
|
| ||
| Spiral spring loose? | Replace spiral spring. | |
|
|
|
PAGE 28 — HS81A