15
| UNSTEADY ENGINE RPM OR TENDENCY TO STOP | |
| Fault | Remedy |
9. | Loose spark plug | Tighten spark plug |
10. | See points 5 - 8 above |
|
11. | Ignition lead damaged or not making | Fasten or replace lead |
| contact |
|
| ENGINE IDLE UNSTEADY |
|
| Fault | Remedy |
12. | Idle advance jet obstructed | Clean |
13. | Idle advance screw requires adjustment | Adjust |
| ENGINE DOES NOT DEVELOP MAXIMUM POWER | |
| Fault | Remedy |
14. | Carburettor jet contaminated | Clean |
15. | Spark plug contaminated | Clean and check gap |
|
| setting (0.4 - 0.5 mm) |
16.Choke closed.
17.Filter in the fuel valve or at the carburettor inlet is dirty
18.Air filter dirty
19.Exhaust hole obstructed.
20.Air entering through gaskets of carburettor flanges, cylinder base etc
21.Wear of engine crankshaft seals
EXCESSIVE VIBRATION Fault
22.Broken blade on blower rotor
23.Debris inside blower
Move lever to position A (see starting instructions)
Clean filters
Clean
Remove exhaust and clean as far as the exhaust hole in the cylinder
Tighten screws and nuts, replace gaskets if necessary
Replace seals
Remedy
Check rotor (a quick inspection can be made by removing the rear cushion)
Open casing and clean
