Yamaha 2014 MT-07 Service Manual

CAMSHAFTS
5-18
7. Remove:
• Exhaust camshaft sprocket “1”
TIP
While holding the exhaust camshaft with a suit-
able tool, loosen the exhaust camshaft sprocket
bolts.
EAS30257
CHECKING THE CAMSHAFTS
1. Check:
• Camshaft lobes
Blue discoloration/pitting/scratches → Re-
place the camshaft.
2. Measure:
• Camshaft lobe dimensions “a” and “b”
Out of specification → Replace the camshaft.
3. Measure:
• Camshaft runout
Out of specification → Replace.
1
2
2
1
1
Camshaft lobe dimensions
Lobe height (Intake)
35.610–35.710 mm (1.4020–
1.4059 in)
Limit
35.510 mm (1.3980 in)
Base circle diameter (Intake)
27.950–28.050 mm (1.1004–
1.1043 in)
Limit
27.850 mm (1.0965 in)
Lobe height (Exhaust)
35.710–35.810 mm (1.4059–
1.4098 in)
Limit
35.610 mm (1.4020 in)
Base circle diameter (Exhaust)
27.950–28.050 mm (1.1004–
1.1043 in)
Limit
27.850 mm (1.0965 in)
Camshaft runout limit
0.030 mm (0.0012 in)

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)