PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03686
Periodic maintenance and lubrication chartNOTE :•
The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead.
•
From 30,000 km, repeat the maintenance intervals starting from 6,000 km.
•
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
1 * Fuel line•Check fuel hoses and vacuum hose for cracks or damage.√√√√ √2 Spark plug•Replace.√√√√ √3 Air filter element•Clean.√√
•Replace.√√
4 * Battery•Check electrolyte level and specific gravity.
√√√√ √•Make sure that the breather hose is properly routed.
•Check operation, fluid level and vehicle for fluid leakage.
√√√√√ √
5 * Front brake(See NOTE on page 6-4.)
•Replace brake pads.Whenever worn to the limit
6 * Rear brake•Check operation and adjust brake lever freeplay.√√√√√ √
•Replace brake shoes.Whenever worn to the limit
7 * Brake hose•Check for cracks or damage.√√√√ √
•Replace. (See NOTE on page 6-4.)Every 4 years
8 * Wheels•Check runout and for damage.√√√√
ODOMETER READING (x 1,000 km)
NO. ItemCheck or maintenance job1
ANNUAL
CHECK
6121824
6-2
SPECIFICATIONS
8
8-1 Model EW50
Dimensions:
Overall length 1,785 mm
Overall width 668 mm
Overall height 1,077 mm
Seat height 787 mm
Wheelbase 1,202 mm
Minimum ground clearance 185 mm
Minimum turning radius 1,800 mm
Weight:
Wet (with oil and a full fuel tank) 81 kg
Engine:
Engine type Air cooled, 2strokes
Cylinder arrangement Single cylinder, vertical
Displacement 49.2 cc
Bore x stroke 40.0 x 39.2 mm
Compression ratio 11.2:1
Starting system type Electric and kick starter
Lubrication system Separate lubrication
(Autolube)
Engine oil:
Type Yamalube 2
or 2 strokes engine oil
Classification Jaso FC or ISO EG-C, EG-D
Capacity 1.3 LFinal transmission oil:
Type SAE 10W30 type SE
Capacity 0.11L
Air filter type:Wet type element
Fuel:
Recommended fuel Regular unleaded gasoline
(RON 91 mini)
Fuel tank capacity 6.5 L
Carburetor:
Type/quantity TK ø12
Manufacturer TEIKEI
Spark plug:
Type / Manufacturer BR8HS / NGK or BR9HS/NGK
Spark plug gap 0.5—0.7 mm
Clutch type:Dry, centrifugal automatic
Transmission:
Primary reduction system Helical gear
Primary reduction ratio 52/13 (4.000)
Secondary reduction system Spur gear
Secondary reduction ratio 42/13 (3.230)
Transmission type V-belt automatic
Operation Centrifugal automatic type
Chassis:
Frame type Steel tube underbone
Caster angle 27°
Trail 90 mm
Specifications
