Originally Posted by backdoc

If you want to completely eliminate this problem you need to have the transmission undercut. Did you replace the shift drum when you replaced the shift fork? Also check the teeth on the shifter rod for wear where it engages the shift star. You only have to remove the engine and split the cases to remove the gears in the transmission. Everything else can be done with the engine in the frame by removing the clutch and oil pan.

https://cbrforum.com/forum/how-103/c...cement-151699/

https://cbrforum.com/forum/cbr-954rr...ission-152834/