Originally Posted by
Ryan41
In regards to my RO1T:
Big problem!!!
We have figured out why it ran like a dog..nothing to do with tune.. The bearings are r00ted..the crank has sideways movement..is that cr@p or what! very dissapointed that the bearings were stuffed considering this has happened from new..I'm guessing manufacture defect. As a result of this the back of the conrod on the bottom has some nicks on it from moving around due to the ill bearings.
Has anyone ever approached Ninja on warranty? is it possible (I would like to know as it's a brand spankin new engine? only care about warranty, as for a $650us engine, I was expecting better..this is garbage! I'm hoping it's a one off...if not, I'd be checking your bearings boys..
Cheers boys
Ryan
Ryan I have a little advice. I am pritty shore the tuned 21 ninja has ceramic bearings in the rear. With all engine's but more so with ones with ceramic bearings during the barke-in procdure from first start you must be very carefull not to give fast excelaration you have to have very smooth throttal movements and alway's at a ritch setting. Ceramic Bearing have a bad habbet of skidding the balls inside the outer and inner races during the very early stages of brake-in. When that happens it damages the bearings very very early on befor the bearings and all moving parts have time to set there clearences. I am no expert but I have a feeling that may be part of your prob now. I know i have done it my self many times. I am much more carefull now to make shore i do very smooth throttal inputs on a fresh engine or even after replacing parts like bearings and conrod's. I hope you get it running agen soon. I knew the engine was not running like it should and i think once you get it sorted it should be quite good just don't give up yet. Best Regards Jeremy.