Yamaha 2014 MT-07 Service Manual

CYLINDER HEAD
5-29
EAS30276
REMOVING THE CYLINDER HEAD
1. Remove:
The following procedure applies to both of the
engine bracket.
• Engine bracket bolts “1”
• Engine mounting bolt “2”
• Engine bracket “3”
TIP
• Place a suitable stand under the engine.
• Loosen the bolts in the proper sequence as
shown.
2. Remove:
• Cylinder head bolt (M6) (×2)
• Cylinder head bolt (M10) (×6)
TIP
• Loosen the bolts in the proper sequence as
shown.
• Loosen each bolt 1/2 of a turn at a time. After
all of the bolts are fully loosened, remove them.
•M6 × 45 mm: “1”, “2”
• M10 × 100 mm: “3”–“8”
EAS30278
CHECKING THE TIMING CHAIN GUIDES
1. Check:
• Timing chain guide (exhaust side)
• Timing chain guide (intake side)
Damage/wear → Replace.
EAS30277
CHECKING THE CYLINDER HEAD
1. Eliminate:
• Combustion chamber carbon deposits
(with a rounded scraper)
TIP
Do not use a sharp instrument to avoid damag-
ing or scratching:
• Spark plug bore threads
• Valve seats
2. Check:
• Cylinder head
Damage/scratches → Replace.
• Cylinder head water jacket
Mineral deposits/rust → Eliminate.
3. Measure:
• Cylinder head warpage
Out of specification → Resurface the cylinder
head.
2
3
1
1
1
2
Warpage limit
0.05 mm (0.0020 in)
×2
×6
1
2
4
5
3
6
8
7
FWD

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)