Motorcycle Engine Evaporative Emission Control System Test - KYMCO Zing 125 Service Manual

19
. EVAPORATIVE/EXHAUST EMISSION
CONTROL SYSTEM
MOTORCYCLE ENGINE EVAPORATIVE EMISSION
A. LEAKAGE TEST PIPING DIAGRAM (SIMPLE)
Exhaust
Muffler
1. Charcoal Canister Plug (Point
Charcoal
Leak-proof
Net
Fresh Air
B. LEAKAGE TEST LOCATIONS (SIMPLE)
1. Charcoal canister, fuel tank (Point
Blow compressed air into the tube at Point
2. Vacuum tube (Point
Blow compressed air into the tube at Point
C. LEAKAGE TEST DIAGRAM (SIMPLE)
19-5
CONTROL SYSTEM TEST
Fuel Vapor
Vacuum
Carburetor
Engine
Rubber Plug (It
should be able to
prevent fuel
enter-ing and its
shape is subject to
the canister
bottom.)
)
)
Metric System
Water in Tube
U Tube
Purge Control
Valve
Air Cleaner
)
to test leakage.
to test leakage.
Rubber
Tube
Tee
Fuel
Tank
Fuel Valve
Fresh Air
Charcoal
Canister
Air
Release
Compressed Air
Leakage Test
Point