Yamaha 2014 MT-07 Service Manual

CAMSHAFTS
5-20
EAS30266
CHECKING THE TIMING CHAIN TENSIONER
1. Check:
• Timing chain tensioner
Cracks/damage/rough movement → Re-
place.
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a. Lightly press the timing chain tensioner rod
into the timing chain tensioner housing by
hand.
TIP
While pressing the timing chain tensioner rod,
wind it counterclockwise with a hexagon wrench
“1” (Parts No.: 1WS-12228-00) until it stops.
b. Make sure that the timing chain tensioner rod
moves in and out of the timing chain tension-
er housing smoothly. If there is rough move-
ment, replace the timing chain tensioner.
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EAS30267
CHECKING THE DECOMPRESSION SYSTEM
1. Check:
• Decompression system
TIP
• Check that the decompressor lever pins “1”
projects from the camshaft.
• Check that the decompressor cams “2” and de-
compressor lever pins “1” moves smoothly.
EAS30269
INSTALLING THE CAMSHAFTS
1. Align:
• Mark “a” on the generator rotor
(with the slot “b” in the generator rotor cover)
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a. Turn the crankshaft counterclockwise.
b. When piston #1 is at TDC, align the TDC
mark “a” on the generator rotor with the slot
“b” in the generator rotor cover.
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2. Install:
• Intake camshaft sprocket “1”
NOTICE
ECA19980
Be sure to tighten the camshaft sprocket
bolts to the specified torque to avoid the
possibility of the bolts coming loose and
damaging the engine.
TIP
• Make sure that the marks “a” on the intake
camshaft sprocket are aligned with cam lobe
#1 “b” as shown in the illustration.
• While holding the intake camshaft sprocket
with the rotor holding tool “2”, tighten the intake
camshaft sprocket bolts in the proper tighten-
ing sequence as shown.
1
T
R
.
.
Intake camshaft sprocket bolt
24 Nm (2.4 m·kgf, 17 ft·lbf)
1
2
2
b
a

Yamaha 2014 MT-07 Specifications

General

Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valve
Displacement	689 cc
Bore x Stroke	80.0 mm x 68.6 mm
Compression Ratio	11.5:1
Maximum Torque	68.0 Nm (6.9 kg-m) @ 6, 500 rpm
Fuel System	Fuel Injection
Ignition System	TCI
Transmission	Constant Mesh, 6-speed
Final Drive	Chain
Front Suspension	Telescopic forks
Front Brake	Hydraulic dual disc, Ø 282 mm
Rear Brake	Hydraulic single disc, Ø 245 mm
Front Tyre	120/70 ZR17M/C (58W)
Rear Tyre	180/55 ZR17M/C (73W)
Dimensions (L x W x H)	2, 085 mm x 745 mm x 1, 090 mm
Seat Height	805 mm
Wheelbase	1, 400 mm
Minimum Ground Clearance	140 mm
Wet Weight	179 kg
Fuel Tank Capacity	14 L
Maximum Power	74.8 PS (55.0 kW) @ 9, 000 rpm
Rear Suspension	Swingarm (Link type suspension)