ATHENA Timing Chain for SUZUKI DRZ 400, GAS GAS ECF 450 and KAWASAKI KLX 400 2000-2016

The ATHENA S41400002 timing chain is designed for KAWASAKI KLX 400, SUZUKI DRZ 400 and GAS GAS ECF 450 from 2000 to 2016. The timing chain drives the camshafts from the crankshaft and keeps the valves in sync with the piston. As it stretches, it throws the valve timing out and pushes the tensioner to the end of its travel.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41400002
• EAN code: 8057018265756
• Weight: 220 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?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Cam chain tensioner : see the selection
• Valve cover gasket : MOOSE · BIHR
• Valve shims : PROX · HOT CAMS
• 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:
GAS GAS ECF 450 2009
GAS GAS ECF 450 2008
GAS GAS ECF 450 2007
GAS GAS ECF 450 2006
GAS GAS ECF 450 2005
GAS GAS ECF 450 2004
GAS GAS ECF 450 2003
KAWASAKI KLX 400 2003
SUZUKI DRZ 400 2016
SUZUKI DRZ 400 2015
SUZUKI DRZ 400 2014
SUZUKI DRZ 400 2013
SUZUKI DRZ 400 2012
SUZUKI DRZ 400 2011
SUZUKI DRZ 400 2010
SUZUKI DRZ 400 2009
SUZUKI DRZ 400 2008
SUZUKI DRZ 400 2007
SUZUKI DRZ 400 2006
SUZUKI DRZ 400 2005
SUZUKI DRZ 400 2004
SUZUKI DRZ 400 2003
SUZUKI DRZ 400 2002
SUZUKI DRZ 400 2001
SUZUKI DRZ 400 2000