compression ratio YAMAHA TMAX 2004 Owners Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
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9 the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with al-

cohol or thinner.
4. Install the headlight bulb cover,
and then connect the coupler.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU25880
Troubleshooting
Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
1. Do not touch the glass part of the bulb.
1

SPECIFICATIONS
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EAU26333
Dimensions:
Overall length:
2235 mm (88.0 in)
Overall width:
775 mm (30.5 in)
Overall height:
1410 mm (55.5 in)
Seat height:
795 mm (31.3 in)
Wheelbase:
1575 mm (62.0 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
2800 mm (110.2 in)
Weight:
With oil and fuel:
225.0 kg (496 lb)
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined parallel 2-cylinder
Displacement:
499.0 cm
3

(30.45 cu.in)
Bore
×
stroke:
66.0
×
73.0 mm (2.60
×
2.87 in)
Compression ratio:
11.00 :1
Starting system:
Electric starter
Lubrication system:
Dry sump

Engine oil:
Type:
SAE10W30 or SAE10W40
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter cartridge replacement:
2.80 L (2.96 US qt) (2.46 Imp.qt)
With oil filter cartridge replacement:
2.90 L (3.07 US qt) (2.55 Imp.qt)
Chain drive oil:
Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.6–0.7 L (0.63–0.74 US qt) (0.53–0.62
Imp.qt)
Cooling system:
Coolant reservoir capacity (up to the maxi-
mum level mark):
0.35 L (0.37 US qt) (0.31 Imp.qt)
Radiator capacity (including all routes):
1.50 L (1.59 US qt) (1.32 Imp.qt)
Air filter:
Air filter element:
Dry element
Fuel:
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
14.0 L (3.70 US gal) (3.08 Imp.gal)
Electronic fuel injection:
Manufacturer:
AISAN
Model:
1100-87B60/1100-87B70
Spark plug(s):
Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Wet, multiple-disc automatic
Transmission:
Primary reduction system:
Spur gear/helical gear
Primary reduction ratio:
52/32
×
36/22 (2.659)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
41/25
×
40/29 (2.262)
Transmission type:
V-belt automatic