How-To: YZ250F Top End Replacement
Year, Make, Model
The model covered in this video is the 2009 Yamaha YZ250F. This video should cover other years and may be useful for the 450’s as well.
Symptoms
None. The owner bought this bike with an unknown history and 120hrs on the meter.
Diagnosis
None. It was running fine before the top end and cam chain were replaced for preventative maintenance reasons.
Tools
(Links are affiliate and help support this site)
How-To Video
Do you have 40-60hrs on your top end? It’s time to replace it! Below, the full length video is available for purchase which covers top end rebuild, bottom end rebuild, and valve inspection.