Yamaha LCX125 User Manual

MAINTENANCE SPECIFICATIONS (ENGINE)
2-2
SPEC
MAINTENANCE SPECIFICATIONS (ENGINE)
Engine
Combustion cycle 4-stroke
Cooling system Air cooled
Valve train SOHC
Displacement 125 cm³
Number of cylinders Single cylinder
Bore  stroke 52.4  57.9 mm (2.06  2.28 in)
Compression ratio 10.2 : 1
Compression pressure 1522–1960 kPa/870 r/min (15.2–19.6 kgf/cm²/
870 r/min, 216.5–278.8 psi/870 r/min)
Starting system Electric starter and kickstarter
Fuel
Recommended fuel Unleaded gasoline (E10 acceptable)
Fuel tank capacity 5.2 L (1.4 US gal, 1.1 Imp.gal)
Engine oil
Recommended brand YAMALUBE
SAE viscosity grades 10W-40
Recommended engine oil grade API service SL type, JASO standard MB
Lubrication system Wet sump
Engine oil quantity
Oil change 0.80 L (0.85 US qt, 0.70 Imp.qt)
Quantity (disassembled) 0.84 L (0.89 US qt, 0.74 Imp.qt)
Oil filter
Oil filter type Centrifugal
Final transmission oil
Recommended brand/type YAMALUBE/Scooter gear oil
Quantity (disassembled) 0.11 L (0.12 US qt, 0.10 Imp.qt)
Quantity 0.10 L (0.11 US qt, 0.09 Imp.qt)
Spark plug(s)
Manufacturer/model NGK/CR6HSA
Spark plug gap 0.6–0.7 mm (0.024–0.028 in)
Cylinder head
Warpage limit 0.05 mm (0.0020 in)
Camshaft
Camshaft lobe dimensions
Lobe height limit (intake) 32.590 mm (1.2831 in)
Lobe height limit (exhaust) 31.948 mm (1.2578 in)
Rocker arm/rocker arm shaft
Rocker arm inside diameter limit 10.015 mm (0.3943 in)
Rocker arm shaft outside diameter limit 9.935 mm (0.3911 in)
B7JF8197E1.book Page 2 Tuesday, June 29, 2021 2:28 PM

Yamaha LCX125 Specifications

General

Brand	Yamaha
Model	LCX125
Category	Motorcycle
Language	English