ATHENA Clutch Friction Plate Kit + cover gasket for YAMAHA YZ 85 2002-2022

On YAMAHA YZ 85 from 2002 to 2022, the ATHENA P40230107 clutch friction plate kit fits in place of the original part. Every start and every hard acceleration wears the clutch linings a little. New friction plates give you back a clutch that holds the torque and bites cleanly at the lever.

Specifications

• Brand: ATHENA
• Manufacturer part number: P40230107
• EAN code: 8052780273077
• Weight: 230 g
• Engine: 2-stroke

When to replace it?

• Revs rise but the bike doesn't pick up speed (slipping), especially in the higher gears.
• Engagement point that wanders, clutch that judders or smells burnt.
• Plates below the minimum thickness given in the manual.

Measure plate thickness with a vernier caliper at every clutch check and replace the plates once they're below the minimum in the manual, or as soon as they slip.

Fitting tips

1. Soak the new friction plates in gearbox oil before fitting them.
2. Check the steel plates (flatness, blueing) and the clutch springs; replace them if necessary.
3. Make sure the basket fingers aren't notched: if they are, the clutch will snag.
4. Reassemble in the original order, tighten to the manufacturer's torque and close up with a new clutch cover gasket.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Clutch steel plates : PROX · ATHENA
• Clutch springs : BARNETT · TRW
• Clutch cover gasket : BOYESEN · ATHENA
• Gearbox oil : LIQUI MOLY 10W30 1 L · LIQUI MOLY 1 L

Frequently asked questions

Should the steel plates be replaced at the same time?
If they're blued, warped or marked, yes: fit new steel plates. If not, check them and keep them.

Is the cover gasket included?
Yes: this kit includes the clutch cover gasket.

Compatibility

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

Fits:
YAMAHA YZ 85 2022
YAMAHA YZ 85 2021
YAMAHA YZ 85 2020
YAMAHA YZ 85 2019
YAMAHA YZ 85 2018
YAMAHA YZ 85 2017
YAMAHA YZ 85 2016
YAMAHA YZ 85 2015
YAMAHA YZ 85 2014
YAMAHA YZ 85 2013
YAMAHA YZ 85 2012
YAMAHA YZ 85 2011
YAMAHA YZ 85 2010
YAMAHA YZ 85 2009
YAMAHA YZ 85 2008
YAMAHA YZ 85 2007
YAMAHA YZ 85 2006
YAMAHA YZ 85 2005
YAMAHA YZ 85 2004
YAMAHA YZ 85 2003
YAMAHA YZ 85 2002