Yamaha YZ85 2021 - Engine Component Maintenance

Periodic maintenance and adjustment
7-2
7
EAU90301
Periodic maintenance and lubrication chart
The following chart is intended as a general guide to maintenance and lubrication. Bear in mind that such factors as weath-
er, terrain, geographical location, and individual 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 motorcycle, 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 ROUTINE
After break-
in
Every race
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 for damage.
• Tighten cylinder head nuts if necessary.
√√
• Replace cylinder head gasket. √
5 * Cylinder
• Check cylinder for score marks or wear.
• Clean.
√√
•Replace. √
UB4B13E0.book Page 2 Wednesday, August 25, 2021 7:15 AM