|
|
| TROUBLESHOOTING | |
|
|
|
|
|
|
| TABLE 4. ENGINE TROUBLESHOOTING |
| |
|
|
|
|
|
| SYMPTOM | POSSIBLE PROBLEM | SOLUTION |
|
|
|
|
|
|
| Difficult to start |
|
|
|
|
|
|
|
|
|
| Ignition plug being bridge? | Check ignition system. |
|
|
|
|
|
|
| Fuel is available but spark plug | Carbon deposit at ignition? | Clean or replace ignition. |
|
|
|
|
| |
| will not ignite. (Power available | Short circuit due to defective | Replace insulators. |
|
| at high tension cable). |
| ||
| insulators? |
|
| |
|
|
|
| |
|
|
|
|
|
|
| Improper spark gap? | Set spark plug gap to the correct gap. |
|
|
|
|
|
|
| Fuel is available but spark plug | Short circuit at stop switch? | Check stop switch circuit. Replace stop switch if defective. |
|
| will not ignite. (Power NOT |
|
|
|
|
|
|
| |
| available at high tension cable). | Ignition coil defective? | Replace ignition coil. |
|
|
|
|
|
|
|
| Muffler clogged with carbon | Clean or replace muffler. |
|
|
| deposits? |
|
|
|
|
|
|
|
|
| Mixed fuel quality is | Check fuel to oil mixture. |
|
| Fuel is available and spark plug | inadequate? |
| |
|
|
| ||
| ignites (compression normal). | Fuel in use inadequate (water, | Flush fuel sytem and replace with fresh fuel. |
|
|
|
| ||
|
| dust)? |
|
|
|
|
|
|
|
|
| Air Cleaner clogged? | Clean or replace air cleaner. |
|
|
|
|
|
|
|
| Defective cylinder head gasket? | Tighten cylinder head bolts or replace head gasket. |
|
| Fuel is available and spark plug |
|
|
|
| Cylinder worn? | Replace cylinder. |
| |
| ignites (compression low ). |
| ||
|
|
|
| |
|
| Spark plug loose? | Tighen spark plug. |
|
|
|
|
|
|
| Operation not satisfactory |
|
|
|
|
|
|
|
|
|
| Air cleaner clogged? |
|
|
|
|
|
|
|
| Not enough power available | Air in fuel line? | Bleed (remove air) from fuel line. |
|
|
|
|
| |
| (compression normal, no miss- | Fuel level in carbureator float |
|
|
| firing). | Adjust carbureator float |
| |
| chamber improper? |
| ||
|
|
|
| |
|
|
|
|
|
|
| Carbon deposits in cylinder? | Clean or replace cylinder |
|
|
|
|
|
|
|
| Ignition coil defective? | Flush fuel sytem and replace with fresh fuel. |
|
| Not enough power available |
|
|
|
| Ignition plug often shorts? | Replace ignition wires, clean ignition. |
| |
| (compression normal, miss- |
| ||
|
|
|
| |
| firing). | Fuel in use inadequate (water, | Flush fuel sytem and replace with fresh fuel. |
|
|
|
| ||
|
| dust)? |
|
|
|
|
|
|
|
|
| Mixed fuel quality is | Check fuel to oil mixture. |
|
|
| inadequate? |
| |
|
|
|
| |
|
| Excessive carbon depostion in | Clean or replace crankcase. |
|
| Engine overheats. | combustion chamber? |
|
|
|
|
|
| |
| Exhaust or muffler clogged with | Clean or replace muffler. |
| |
|
|
| ||
|
| carbon. |
|
|
|
|
|
|
|
|
| Spark plug heat value incorrect? | Replace spark plug with correct type spark plug. |
|
|
|
|
|
|
|
|
|
|
|
PAGE 18 — MT85HS RAMMER — OPERATION AND PARTS MANUAL — REV. #9 (01/16/12)