ENGINE TROUBLESHOOTING
When a problem occurs, do not overlook the simple causes. For example, starting problems could be caused by an empty fuel tank.
The following table lists some of the common causes of trouble.
Do not attempt to service or replace major items or any items that call for special timing or adjustment procedures (such as valves, governor, etc.). Have this work done by your Engine Service Dealer.
ENGINE TROUBLESHOOTING TABLE
PROBLEM | NO | IMPROPER | DIRT IN | DIRTY AIR | FAULTY | ENGINE | BLOCKED | INCORRECT | DIRTY | |
SPARK | FUEL | OIL | AIR | |||||||
FUEL | FUEL | FUEL LINE | FILTER | OVERLOADED | ||||||
|
|
|
|
| PLUG |
| FILTER | LEVEL | SCREEN | |
Will not start | X |
| X | X | X | X | X |
|
| |
Hard starting | X | X | X | X | X | X | X |
|
| |
Stops suddenly | X |
| X | X |
| X | X | X | X | |
Lacks power |
| X | X | X | X | X | X | X | X | |
Operates |
| X | X | X | X | X | X |
| X | |
erratically |
|
| ||||||||
Knocks or pings |
| X |
|
|
| X |
|
| X | |
Skips or misfires |
| X | X | X | X |
|
|
| X | |
Backfires |
|
| X | X | X | X |
|
| X | |
Overheats |
|
| X | X |
| X |
| X | X | |
High fuel |
|
|
| X | X | X |
|
| X | |
consumption |
|
|
|
|
|
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