RE: Saito 125 engine bearing failure
I changed my bearings to ceramics from RC-Bearings.com in my 125.
Later, I crashed the hell out of it. It even bent the Tru-turn spinner adapter, but not the crank.
Because I am a fool, I paid 3x more for the bearings from BocaBearings. Immediately I noticed the difference. There is a LOT of axial end play when the engine is warm. When cold, there is no end play to speak of. I imagine the bearings do not fit as snugly as they should. There is no radial end play, but I get quite a bit of oil leaking out of the front bearing. I can see the residue inside the cowling.
I was a fool to buy bearings from anyone besides Paul. I've already rectified this and have some coming in the mail.
Boca bearings does not respond to my emails asking if this type of bearing behavior is normal. Repeated emails yield zero responses. *******s.