Yamaha YZ85 2021 - Drivetrain and Clutch Maintenance

Periodic maintenance and adjustment
7-3
7
6 * YPVS
• Check YPVS for carbon deposits and
cracks or damage.
√√
• Clean. √√
7 * Clutch
• Check clutch housing, friction plates,
clutch plates and clutch springs for wear
or damage.
•Adjust.
√√
• Replace. √
8 * Transmission
• Change the transmission oil. √√
• Check transmission for damage. √
• Replace bearings. √
9 *
Shift forks, guide bars,
shift cam
• Check all parts for wear and damage.
• Replace if necessary.
√
10 *
Rotor nut (flywheel
magneto)
•Tighten. √√
11 * Kickstarter system
• Check idle gear for damage.
• Replace if necessary.
√
12 * Exhaust system
• Check exhaust pipe and muffler for carbon
deposits.
√√
• Clean. √
13 * Crankshaft
• Check crankshaft for carbon deposits and
damage.
√√
• Clean. √√
14 * Carburetor
• Check carburetor settings and for obstruc-
tions.
√√
• Adjust and clean. √√
NO. ITEM ROUTINE
After b reak-
in
Every race
Every third
race
Every fifth
race
As required
UB4B13E0.book Page 3 Wednesday, August 25, 2021 7:15 AM