202
TROUBLESHOOTING
Engine
Complaint
Symptom and possible causes
Remedy
Engine will not start
or is hard to start.
Compression too low
Worn cylinder
Rebore or replace
Worn piston ring
Replace.
Worn valve guide or improper valve seating
Repair or replace
Loose spark plug
Tighten.
Broken, cracked or damaged piston
Replace
Slow cranking starter motor
See electrical section
Mistimed valves
Adjust
Tappet clearance out of adjustment
Adjust
Spark plug not sparking
Damaged spark plug
Replace
Damaged spark plug cap
Replace
Fouled spark plug
Clean or replace
Wet spark plug
Clean and dry or replace
Defective ignition coil
Replace
Open or short in high-tension cord
Replace
Defective pick-up coil or CDI unit
Replace
No fuel reaching a carburetor
Clogged or defective fuel valve
Clean or replace
Defective carburetor needle valve
Replace with cauburetor
needle valve seat
Clogged fuel hose
Clean or replace
Clogged fuel fi lter
Clean or replace
Engine stalls easily
Fouled spark plug
Clean or replace
Defective pick-up coil or CDI unit
Replace
Clogged fuel hose
Clean
Clogged carburetor jet
Clean
Tappet clearance out of adjustment
Adjust
Engine is noisy
Excessive valve chatter
Excessive tappet clearance
Adjust
Weak or broken valve spring
Replace
Worn cam surface
Replace
Worn or burnt camshaft journal
Replace camshaft
Содержание madass
Страница 53: ...50 LUBRICATION SYSTEM...
Страница 111: ...10 12 Nm 10 14 Nm 108 CYLINDER PISTON...
Страница 112: ...109 ZYLINDER KOLBEN...
Страница 129: ...1 2 126 CLUTCH GEARSHIFT LINKAGE Remove the primary drive clutch 1 and clutch center guide 2...
Страница 130: ...127 KUPPLUNG SCHALTGEST NGE Das Prim rantriebsrad 1 und die Kupplungsnaben Lager h lse 2 entfernen...
Страница 191: ...PICK UP KILL SWITCH RPM STOP B R G G G Bl W 188 IGNITION SYSTEM SCHEMA...
Страница 192: ...PICK UP KILLSCHALTER DREHZAHLBEGRENZER Z NDANGLEICHER B R G G G Bl W 189 Z NDSYSTEM DIAGRAM...