Page 230 - 2019 SHOP MANUAL CRF1000/A/D

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CYLINDER HEAD/VALVE/CAMSHAFT
DISASSEMBLY
Install the tappet hole protector into the valve lifter bore.
A tool can easily be made from a plastic 35 mm film
container or equivalent as shown.
5 mm 5 mm TOP VIEW

31 mm
15 mm

To prevent loss of Remove the valve cotters [1] using the special tool as
tension, do not shown. [2]
compress the valve
springs more than TOOLS:
necessary. Valve spring compressor [2] 07757-0010000

[1]

Mark all the parts Remove the following:
so they can be – Spring retainers [1]
placed back in their – Valve springs [2]
original locations.
– Intake valves [3]
– Exhaust valves [4]
– Stem seals (Intake side) [5]
– Stem seals (Exhaust side) [6]
– Spring seats [7]
[7]
[6] [5]
[4] [3]

[1] [2] [2] [1]

Remove carbon deposits from the combustion chamber
[1].
[1]

10-14