Page 396 - 2019 SHOP MANUAL CRF1000/A/D

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CRANKSHAFT/PISTON/CYLINDER
Apply molybdenum oil solution to the piston pin outer
surface.
Install the piston pin [1] and secure it using new piston
pin clips [2].

• Make sure that the piston pin clips are seated [2]
securely.
• Do not align the piston pin clip end gap with the
piston cut-out [3].
[3]

[1]
PISTON/CONNECTING ROD
INSTALLATION
Apply engine oil to the piston and cylinder sliding
surface.

Install the piston/ Install the piston/connecting rod assemblies [1] into the [1]
connecting rod cylinders using a commercially available piston ring [3]
assembly with the compressor tool [2].
"IN" mark [3] facing When reusing the connecting rods, they must be
the intake side. installed in their original locations.

• While installing the piston, be careful not to damage
the top surface of the cylinder, especially around the
cylinder bore.
• Be careful not to damage the cylinder sleeve with [2]
the connecting rod bolt threads.
Make sure the Use the handle of a plastic hammer or equivalent tool to
piston ring tap the piston into the cylinder.
compressor tool sits Install the following:
flush on the top
surface of the – Crankshaft (page 15-5)
cylinder. – Transmission (page 14-24)

PISTON OIL JET REMOVAL/
INSTALLATION
Remove the piston oil jets [1] and O-rings [2].
[2] [1]
Apply engine oil to new O-rings and install them onto
the piston oil jets.
Install the piston oil jets into the holes of upper
crankcase as shown.

[2]

15-14