Ok cbr 900rr when u start it and its sitting upright its fine but if you tilt it to the side it starts to knock but only if you lean it why???? Also it was flood out bad and oil is prob full of gas and thin now so could this make it knock????? Thanks

 

What year 900?? how bad is the knock? is it in the top end
or bottom??

 

94 not really sure to or bottom I'll check today cuz I only had it on for a sec

 

I just seen my bolts to hold my motor to frame on each side or missing so maybe that's why when I till side to side I hear knock?????

 

That might have something to do with it Missing 1/2 your
motor mounts is kinda a big deal

 

Yea lmao