Honda CRF450R 2020, Руководство пользователя и соревновательное пособие

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Servicing Your Honda
Piston/Piston Rings/Piston Pin
1. Clean any gasket material off cylinder head.
2. Install the cam chain guide (1) and fit the cam
chain guide tabs (2) in the cylinder cutouts (3).
Push the guide until it bottoms in the crankcase
guide groove.
3. Install the dowel pins (4) and a new cylinder
head gasket (5).
Do not let the dowel pins fall into the crankcase.
4. Route the cam chain through the cylinder head
and install the cylinder head (6).
Do not damage mating surfaces when installing
the cylinder head.
5. Apply engine oil to all cylinder head bolt
threads and seating surface.
Install the washers and cylinder head bolts (7)
and tighten them to the specified torque in a
crisscross pattern in two or three steps:
37 lbf·ft (50 N·m, 5.1 kgf·m)
Do not let the washers fall into the crankcase.
6. Install the cylinder bolt (8) and tighten it to the
specified torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
Cylinder Head Installation
(1) cam chain guide (3) cylinder cutouts
(2) cam chain guide tabs
(1)
(3)
(2)
(4) dowel pins
(5) cylinder head gasket (new)
(4)
(5)
(6) cylinder head
(7) washers and cylinder head bolts
(8) cylinder bolt
(7)
(6)
(8)