This is the cam bearing found in Japanese engine of yamaha ybr 125, when replaced bearing only cost 1000pkr as jts genuine yamaha parts.
While in market you can get japnese bearings for 200-250 pkr and chinese 50-100 pkr.
Problem to my bike from first tuning is that it's noisy engine like heavy friction noise and tappet noice like all the time bike is knocking. Video attched for engine noise
Bike is maintained by their trained the mechanics change timing chain adjuster/tensioner.
Result 0, noise increased.
Changed timing chain and it's corresponding plastic parts.
Result 0, now more noise than before.
Again, now they ( YAMAJA ) changed cam bearings.
Photo attached of that bearing which was hiding in Japanese engine.
Result too much noisy now.
