WISECO steel Exhaust Valve for HONDA CRF 70, XR 70 1997-2012

WISECO offers this exhaust valve for HONDA CRF 70, XR 70 1997-2012. A four-stroke engine breathes through its valves. The exhaust valves open to let the burnt gases out to the pipe, then close again.

Titanium or steel valve?

The material is shown in the product name.

• Titanium: about 40% lighter than steel, it allows high revs without valve float; it costs more and its coating wears faster if the seats and guides are tired.
• Steel or stainless: heavier, but very wear-resistant and cheaper; as a replacement for titanium it lasts longer, with springs suited to its weight.
• Tip: replace valves as a set, have the seats checked and fit new valve stem seals.

Why choose WISECO?

Wiseco has forged its pistons in Mentor (Ohio, USA) since 1941 and controls the whole process, from aluminium bar to the friction-reducing ArmorGlide skirt coating. Its pistons are developed with Team Honda HRC in Supercross (450 class since 2018).

When should you replace the valves on your HONDA CRF 70?

Hard hot starting, valve clearance that keeps closing up or a noisy timing chain: the valve train is wearing.

Specifications and fitting tips

• Manufacturer part number: WVES022

Spare parts and items to plan

• Valve stem seals : see the selection
• Valve shims : see the selection
• Valve cover gasket : see the selection

Compatibility

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

Fits:
HONDA CRF 70 2012
HONDA CRF 70 2011
HONDA CRF 70 2010
HONDA CRF 70 2009
HONDA CRF 70 2008
HONDA CRF 70 2007
HONDA CRF 70 2006
HONDA CRF 70 2005
HONDA CRF 70 2004
HONDA XR 70 2003
HONDA XR 70 2002
HONDA XR 70 2001
HONDA XR 70 2000
HONDA XR 70 1999
HONDA XR 70 1998
HONDA XR 70 1997