Service manual

02-2
• HIGH TORQUE ENGINE
• ENHANCED POWER DELIVERY
• HYDRAULIC TAPPETS
• AUTO DECOMPRESSOR
• AUTO CHAIN TENSIONER FOR
PRIMARY CHAIN
• HIGH CAPACITY TRACHOIDAL
OIL PUMP FOR BETTER
LUBRICATION
• IMPROVED ACCELERATION &
HIGH SPEED CRUISING
• EXCELLENT COLD STARTING
ABILITY
• ACCURATELY CONTROLLED, AIR
FUEL MIXTURE & IGNITION
TIMING BY THE ENGINE
CONTROL UNIT
• IMPROVED PERFORMANCE AND
FUEL EFFICIENCY THRO FUEL
INJECTION SYSTEM.
FOUR STROKE CYCLE OPERATION
SUCTION COMPRESSION POWER EXHAUST
STROKE STROKE STROKE STROKE
Inlet Valve Open Closed Closed Closed
Exhaust Valve Closed Closed Closed Open
Piston Movement TDC to BDC BDC to TDC TDC to BDC BDC to TDC
Gas Flow Air Petrol Air Petrol Air petrol mix. Exhaust gas
mixture is mixture gets burns, gas flows out.
drawn into compressed. expands.
cylinder Piston is
Few degrees before pushed down.
BTDC, spark plug
produces spark.
Salient Features of the Unit Construction Engine & Engine
Management System
UNIT CONSTRUCTION ENGINE ELECTRONIC FUEL INJECTION
SYSTEM