technical data YAMAHA YZ65 2021 Owners Manual

Periodic maintenance an d a djustment
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EAU84193
Perio dic maintenance an d lu brication chart
The following chart is intended as a general guide to maintenance and lubrication.
Bear in mind that such factors as weather, terrain, geographical location, and in-
dividual usage will alter the required maintenance and lubrication intervals. If you
are in doubt as to what intervals to follow in maintaining and lubricating your mo-
torcycle, consult your Yamaha dealer.
TIP
Items marked with an asterisk should be performed by a Yamaha dealer as they
require special tools, data and technical skills.
NO. ITEM ROUTINEAfter
break-in
Everyrace
Every
third race
Every
fifth race
As
required
1 *Piston Check piston for carbon deposits and
cracks or damage. Clean.
Replace.

2 *
Piston rings Check piston ring end gap and rings
for damage.
Replace.
3 *
Piston pin and small
end bearing Check piston pin and small end
bearing for damage.
Replace.
4 *
Cylinder head Check cylinder head for carbon
deposits.
 Clean.
Check cylinder head gasket fordamage.
 Tighten cylinder head bolts ifnecessary.
Replace cylinder head gasket.

5 *
Cylinder
6*YPVS Check cylinder for score marks or
wear.


 Clean.
Replace.
Check YPVS for carbon deposits andcracks or damage.
Clean.

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