MAINTENANCE SCHEDULE
General | Engine assembly, screws and nuts | Visual inspection for damage and tightness. |
|
| Check for general condition and security. |
|
|
|
After each refueling | Control lever | Functional check |
| Functional check | |
|
|
|
Daily | Air filter | To be cleaned |
| Cooling air duct | To be cleaned |
| Cutting tool | Check for damage and sharpness |
| Idling speed | Inspect (Cutting tool does not rotate) |
|
|
|
Weekly | Spark plug | Inspection, replace if necessary |
| Muffler | Check and clean the opening if necessary |
|
|
|
Quarterly | Suction head | To be replace |
| Fuel tank | To be cleaned |
|
|
|
Yearly | Fuel tank | Empty fuel tank |
(Long Term) | Carburetor | Operate until engine stops |
|
|
|
TROUBLESHOOTING CHART
Trouble | System | Observation | Cause |
|
|
|
|
Engine does not start or | Ignition system | Ignition spark O.K. | Failure in fuel supply or compression system, mechanical defect |
hard to start |
|
|
|
| No ignition spark | ||
|
| ||
|
|
| connector defective, ignition module faulty |
|
|
|
|
| Fuel supply | Fuel tank filled | Wrong choke position, defective carburetor, fuel supply line bent |
|
|
| or blocked, dirty fuel |
|
|
|
|
| Compression | No compression when pulled over | Cylinder bottom gasket defective, Crankshaft seals damaged, |
|
|
| Cylinder or piston rings defective or improper sealing of spark |
|
|
| plug |
|
|
|
|
| Mechanical fault | Starter not engaging | Broken starter spring, broken parts inside the engine |
|
|
|
|
Warm start problem |
| Tank filled | Carburetor contaminated or damaged. Clean or replace. |
|
| Ignition spark |
|
|
|
|
|
Engine starts but soon | Fuel supply | Tank filled | Incorrect |
stops |
|
| Carburetor contaminated |
|
|
| Defective tank, fuel supply line interrupted, cable or |
|
|
| defective. |
|
|
|
|
Insufficient performance | Several systems | Poor engine idling | Air filter contaminated, carburetor contaminated, muffler |
|
|
| clogged, exhaust duct in the cylinder clogged |
|
|
|
|
14