Yamaha YBR 125 workshop manual
Yamaha YBR 125 Top End Removal ( Cylinder barrel , piston and head )
ill ad captions later , but heres a post on removing the top end , cylinder head and piston from the yamaha ybr 125 , quite easy even in the bike .
Side timing chain cover removed
undoing the top cam bolt whilst holding the crank nut tight
slack off and remove the chain tensioning assembly
use a soft mallet .
job done and very easy to do
Check for damage and replace any suspect parts with new parts
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