ATHENA Timing Chain for YAMAHA WRF 450, YZF 450 and KAWASAKI KXF 450 2009-2024

On YAMAHA WRF 450, YZF 450 and KAWASAKI KXF 450 from 2009 to 2024, the ATHENA S41400014 timing chain fits in place of the original part. On a four-stroke, the timing chain links the crankshaft to the camshafts. A tired chain gets noisy, upsets the timing and can jump a tooth: with valves hitting the piston, the damage is severe.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41400014
• EAN code: 8057018265862
• Weight: 230 g
• Engine: 4-stroke

When to replace it?

• Rattling or chain noise on the timing side, especially at idle.
• Tensioner at the end of its travel.
• Timing marks that no longer line up.

At the intervals in the service manual, and as soon as the tensioner reaches the end of its travel. Check the sprockets and the guides at the same time.

Fitting tips

1. Set the engine at top dead centre on the compression stroke, marks aligned, before removing anything.
2. On most motocross engines the chain is endless, with no master link: replacing it means removing the crankshaft sprocket or a camshaft, as described in the manual.
3. Line the camshafts up with their timing marks again, then put the tensioner back under tension.
4. Turn the engine over two full turns by hand and check the timing again before starting.
5. Refit with a valve cover gasket in good condition.

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

• Cam chain tensioner : see the selection
• Valve cover gasket : MOOSE 817924MSE · MOOSE 817944MSE
• Valve shims : PROX 29.948 · PROX 29.948
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50

Frequently asked questions

Should I replace the tensioner?
Check it: a worn tensioner, or one at the end of its travel, must be replaced along with the chain.

Compatibility

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

Fits:
KAWASAKI KXF 450 2018
KAWASAKI KXF 450 2017
KAWASAKI KXF 450 2016
KAWASAKI KXF 450 2015
KAWASAKI KXF 450 2014
KAWASAKI KXF 450 2013
KAWASAKI KXF 450 2012
KAWASAKI KXF 450 2011
KAWASAKI KXF 450 2010
KAWASAKI KXF 450 2009
YAMAHA WRF 450 2024
YAMAHA WRF 450 2023
YAMAHA WRF 450 2022
YAMAHA WRF 450 2021
YAMAHA WRF 450 2020
YAMAHA WRF 450 2019
YAMAHA WRF 450 2018
YAMAHA WRF 450 2017
YAMAHA WRF 450 2016
YAMAHA YZF 450 2020
YAMAHA YZF 450 2019
YAMAHA YZF 450 2018
YAMAHA YZF 450 2017
YAMAHA YZF 450 2016
YAMAHA YZF 450 2015
YAMAHA YZF 450 2014
YAMAHA YZF 450 2013
YAMAHA YZF 450 2012
YAMAHA YZF 450 2011
YAMAHA YZF 450 2010