KIBBLEWHITE valve guide for YAMAHA WR 250 F, WR 450 F, YZ 250 F, YZ 450 F from 2001 to 2013

KIBBLEWHITE offers this valve guide for YAMAHA WR 250 F, WR 450 F, YZ 250 F, YZ 450 F from 2001 to 2013. The guide is a bush pressed into the cylinder head. The valve stem slides in it thousands of times a minute.

Why replace a valve guide?

The benefits:

• Remove the play of the valve in its guide.
• The valve lands right in the centre of its seat: sealing and compression restored.
• A quality guide slides well and lasts, even with titanium valves.

Why choose KIBBLEWHITE?

Kibblewhite guides are C63000 nickel-aluminium bronze: the nickel resists wear, the copper draws heat away from the valve more effectively.

When should you replace the valve guides on your YAMAHA WR 250 F?

The clearance between valve stem and guide is measured with the head off: beyond the manufacturer's limit, guides and seats are redone together with the valves.

Specifications and fitting tips

• Application: Exhaust
• Outside diameter: 0.3958"
• Inside diameter: 0.1760"
• Material: C674 bronze
• Size: Standard
• The softer manganese guides are easily reamed, then gently finished with high-quality Kibblewhite ball hones

Cross-Mania tip: Fitting requires special tools and valve lapping: it is a job for a cylinder head specialist.

Compatibility

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

Fits:
YAMAHA WR 250 F 2013
YAMAHA WR 250 F 2012
YAMAHA WR 250 F 2011
YAMAHA WR 250 F 2010
YAMAHA WR 250 F 2009
YAMAHA WR 250 F 2008
YAMAHA WR 250 F 2007
YAMAHA WR 250 F 2006
YAMAHA WR 250 F 2005
YAMAHA WR 250 F 2004
YAMAHA WR 250 F 2003
YAMAHA WR 250 F 2002
YAMAHA WR 250 F 2001
YAMAHA WR 450 F 2009
YAMAHA WR 450 F 2008
YAMAHA WR 450 F 2007
YAMAHA WR 450 F 2006
YAMAHA WR 450 F 2005
YAMAHA WR 450 F 2004
YAMAHA WR 450 F 2003
YAMAHA YZ 250 F 2013
YAMAHA YZ 250 F 2012
YAMAHA YZ 250 F 2011
YAMAHA YZ 250 F 2010
YAMAHA YZ 250 F 2009
YAMAHA YZ 250 F 2008
YAMAHA YZ 250 F 2007
YAMAHA YZ 250 F 2006
YAMAHA YZ 250 F 2005
YAMAHA YZ 250 F 2004
YAMAHA YZ 250 F 2003
YAMAHA YZ 250 F 2002
YAMAHA YZ 250 F 2001
YAMAHA YZ 450 F 2009
YAMAHA YZ 450 F 2008
YAMAHA YZ 450 F 2007
YAMAHA YZ 450 F 2006
YAMAHA YZ 450 F 2005
YAMAHA YZ 450 F 2004
YAMAHA YZ 450 F 2003