compression ratio YAMAHA VMAX 2011 Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
6
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU25871
Troubleshooting Although Yamaha motorcycles 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 motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
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.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
U2S3E2E0.book Page 39 Tuesday, September 21, 2010 10:43 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2395 mm (94.3 in)
Overall width:
820 mm (32.3 in)
Overall height:
1190 mm (46.9 in)
Seat height:
775 mm (30.5 in)
Wheelbase:
1700 mm (66.9 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
3500 mm (137.8 in)Weight:Curb weight:
310 kg (683 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
V-type 4-cylinder
Displacement:
1679 cm³
Bore × stroke:
90.0 × 66.0 mm (3.54 × 2.60 in)
Compression ratio:
11.30 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
4.30 L (4.55 US qt, 3.78 Imp.qt)
With oil filter cartridge replacement:
4.70 L (4.97 US qt, 4.14 Imp.qt)Final gear oil:Type:
Yamaha genuine shaft drive gear oil SAE
80 API GL-5
Quantity:
0.30 L (0.32 US qt, 0.26 Imp.qt)
Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.27 L (0.29 US qt, 0.24 Imp.qt)
Radiator capacity (including all routes):
3.75 L (3.96 US qt, 3.30 Imp.qt)Air filter:Air filter element:
Oil-coated paper elementFuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
15.0 L (3.96 US gal, 3.30 Imp.gal)
Fuel reserve amount:
3.9 L (1.03 US gal, 0.86 Imp.gal)Fuel injection:Throttle body:
ID mark:
2S31 00Spark plug(s):Manufacturer/model:
NGK/CR9EIA
Manufacturer/model:
DENSO/IU27D
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:
1.509 (86/57)
–20 –10 0
1020 30 40 50 C 10 30 50 70 90 110 0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
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