KIBBLEWHITE valve guide for YAMAHA YZ 250 F, YZ 250 FX from 2014 to 2017 - 80-80930

KIBBLEWHITE offers this valve guide for YAMAHA YZ 250 F, YZ 250 FX from 2014 to 2017. 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 YZ 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: 0.3563"
• 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 YZ 250 F 2017
YAMAHA YZ 250 F 2016
YAMAHA YZ 250 F 2015
YAMAHA YZ 250 F 2014
YAMAHA YZ 250 FX 2017
YAMAHA YZ 250 FX 2016
YAMAHA YZ 250 FX 2015