Saturday, 7 June 2014

Yamaha YBR 125 Engine Rebuild Information






Ill use this post to gather all information i can on rebuilding the engine on the Yamaha YBR 125 .

so far i have only done a top end rebuild , new piston and rings after having barrel honed 
the bottom end so far seems bullet proof but i am sure ill do one eventually  , i have stripped one out
and documented it , see the links below for all these posts and videos 

if you have any advice on engine rebuild for the Yamaha YBR 125 , and would like to help out
let me know and ill upload it .


other posts of interest


Yamaha YBR 125 Clutch - rebuild


Yamaha YBR 125 Engine rebuild


Four stroke single
123.7cc
54mm bore
54mm stroke
10 to 1 comp
170 psi compression
Air cooled


All service settings for valves ,  head , piston , rings clutch etc are in the
Haynes workshop manual id get one if you attempting to rebuild your engine
it will be invaluable BUY HERE 


Check out complete engines for YBR 125 here 

Yamaha YBR 125 Engine Rebuild Information

Yamaha YBR 125 Engine Rebuild Information

Yamaha YBR 125 Engine Rebuild Information

yamaha YBR 125 engine rebuild
Yamaha YBR 125 engine rebuild 

yamaha YBR 125 engine rebuild
Yamaha YBR 125 engine rebuild 

yamaha YBR 125 engine rebuild
yamaha YBR 125 engine rebuild 

yamaha YBR 125 engine rebuild
Yamaha YBR 125 engine rebuild

Yamaha YBR 125 Engine Rebuild Information


Starter clutch / flywheel rebuild just done this today took some photos .

made them into video easier to upload - ill do engine rebuild one soon .


compression testing
                                      

Top end rebuild and removal



Gearbox 

                                        

engine refit and removal 

                                     

timing chain gear 

                                     



thanks for reading the Yamaha Owners blog , if you would like to support us you can by  buying your newYamaha YBR 125 off ebay uk here or buying  parts for your yamaha YBR 125 from ebay uk 



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