Yamaha YBR 125 Top End Removal ( Cylinder barrel , piston and head )

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Yamaha YBR 125 Top End Removal ( Cylinder barrel , piston and head )

ill ad captions later , but here is a post on removing the top end , cylinder head and piston from the Yamaha YBR 125 , quite easy even in the bike .

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                              Side timing chain cover removed  

                    all main top end bolts loosened and  removed

undoing the top cam bolt whilst holding the crank nut tight

slack off and remove the chain tensioning assembly

                      remove the timing gear but catch the chain

              I tie the chain so it not just falling into the lower section

                                  cylinder head  removed

       you may need to tap the cylinder in a few places to dislodge it
                                           use a soft mallet .

                  remove circlip knock out piston pin and remove piston
                                  job done and very easy to do

Check for damage and replace any suspect parts with new parts