compression ratio YAMAHA VMAX 2015 Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-40
6
EAU24351
Supporting the motorcycleSince this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under 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 placing a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU25872
Trou
bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during 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
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water
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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)Wei ght: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: 11.3 : 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
80W-90 API GL-5
Quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.27 L (0.29 US qt, 0.24 Imp.qt)
Radiator (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 (Gasohol (E10)
acceptable)
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 plu g(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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