Sym MaxSym 600i ABS Service Manual

4. Fuel Injection System
4-37
l
Continued from previous page
Closed-loop
systems for
mobility
● O2 sensor
voltage is
maintained in a
long time within
a certain range
beating
● O2 sensor fault
● ECU fault
● O2 sensor
voltage beating
specifications:
100 ~ 900 mV
from the two
groups within
the interactive
beating
NG
YES
● Use diagnosis
tool to detect of
the manifold
pressure
Engine
vacuum
● Diagnosis tool
manifold
pressure for
compliance with
specifications?
● Valve clearance is
not normal
● Intake system leak
● Manifold
pressure
Specifications:
32~38 kPa
NG
Normal starting
Can not starting or starting difficulties
In traditional engine overhaul way to
maintenance
Finish
YES
YES
To this chapter contents
● Observation O2
senslor voltage
changes (Standed
motorcycle so that
engine speed
refueling between
4500 to 5500 rpm

Sym MaxSym 600i ABS Specifications

General

Brand	Sym
Model	MaxSym 600i ABS
Category	Scooter
Language	English