COMETIC top-end gasket kit for YAMAHA YZ 85 LW, YZ 85 SW from 2019 to 2026

COMETIC offers this top-end gasket kit for YAMAHA YZ 85 LW, YZ 85 SW from 2019 to 2026. The top end is the cylinder, piston and cylinder head. When they are taken apart, the gaskets sealing them are crushed and cannot be reused.

Why buy a complete kit?

The benefits:

• Every top-end gasket in one part number: nothing is forgotten at reassembly.
• Cheaper than buying the gaskets one by one.
• New gaskets guarantee compression and sealing against water, oil and gases.

Why choose COMETIC?

Cometic has made its gaskets in the USA since 1989: Viton-coated multi-layer steel (MLS) head gasket, the technology used in racing engines.

When should you replace the gaskets on your YAMAHA YZ 85 LW?

An oil or coolant leak, seepage around the cases or a loss of compression signal a tired gasket. Having the kit to hand means the bike is never stuck waiting for one missing gasket.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 15 h in hard use and every 30 h for leisure.

Specifications and fitting tips

• Materials vary by application and specific engineering
• For a complete engine rebuild, purchase both a top end and a bottom end gasket kit

Cross-Mania tip: Clean the mating faces carefully without scratching them and tighten to the manufacturer's torque.

Also needed with this part

• Piston : WISECO · VERTEX
• 2-stroke oil : LIQUI MOLY 1 L 3065 · LIQUI MOLY 1 L 3063
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
YAMAHA YZ 85 LW 2026
YAMAHA YZ 85 LW 2025
YAMAHA YZ 85 LW 2024
YAMAHA YZ 85 LW 2023
YAMAHA YZ 85 LW 2022
YAMAHA YZ 85 LW 2021
YAMAHA YZ 85 LW 2020
YAMAHA YZ 85 LW 2019
YAMAHA YZ 85 SW 2026
YAMAHA YZ 85 SW 2025
YAMAHA YZ 85 SW 2024
YAMAHA YZ 85 SW 2023
YAMAHA YZ 85 SW 2022
YAMAHA YZ 85 SW 2021
YAMAHA YZ 85 SW 2020
YAMAHA YZ 85 SW 2019