I have a just broken in rb s5. I believe about a gallon. Stock carb 8 mm restictor, still has a slight bit of mechanical pinch and tons of compression. Is is common for a front bearing to go bad in such short time? I like this engine and wanted to find out more about it and if some other pipe configurations too. I noticed the engine ran different with this engine more than any other engine I have ran before.What brand bearing should I get, and do you think I should put a rear bearing in it too cause I feel that bearing failed rather prematurely.
I have not torn engine apart and it ran warmer in the day like 260-270 and did not leak any oil then It was retuned and I noticed a bit of oil bfore the b main and after it there was just a ton of oil. but it ran 225 and great. I just dont want to hurt this engine and I dont know as much as I would like to.There is not alot of talk about RB engines so hoping I will find some here. Thanks