Sym Orbit II 50 4T User Manual

SYM 4. FUEL SYSTEM
4-3
TROUBLE DIAGNOSIS
Poor engine start
l No fuel in fuel tank
l Clogged fuel tube
l Too much fuel in cylinder
l No spark from spark plug (malfunction of
ignition system)
l Clogged air cleaner
l Malfunction of automatic by-starter
l Malfunction of throttle valve operation
Stall after started
l Malfunction of automatic by-starter
l Incorrect ignition timing
l Malfunction of carburetor
l Dirty engine oil
l Air existing in intake system
l Incorrect idle speed
Rough idle
l Malfunction of ignition system
l Incorrect idle speed
l Malfunction of carburetor
l Dirty fuel
Intermittently misfire as acceleration
l Malfunction of ignition system
Late ignition timing
l Malfunction of ignition system
l Malfunction of carburetor
Power insufficiency and fuel consuming
l Fuel system clogged
l Malfunction of ignition system
Mixture too lean
l Clogged fuel injector
l Vacuum piston stick and closed
l Malfunction of float valve
l Fuel level too low in float chamber
l Clogged fuel tank cap vent
l Clogged fuel filter
l Obstructed fuel pipe
l Clogged air vent hose
l Air existing in intake system
Mixture too rich
l Clogged air injector
l Malfunction of float valve
l Fuel level too high in float chamber
l Malfunction of automatic by-starter
l Dirty air cleaner

Sym Orbit II 50 4T Specifications

General

Brand	Sym
Model	Orbit II 50 4T
Category	Scooter
Language	English