Removing The Cylinder Head; Checking The Timing Chain Guides; Checking The Cylinder Head - Yamaha 2014 MT-07 Service Manual

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.
1
2
2
3
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"
1
1
×2
×6
3
6
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.
Warpage limit
0.05 mm (0.0020 in)
5-29
CYLINDER HEAD
FWD
7
8