Reply To: Whining noise from engine in 5th gear only?
You hit the nail on the head, excessive shavings on sump bolt magnet, whining noise from the clutch system side. weak Springs . finished Clutch Plates . Metal Discs distorted
This is what the service manual says, which points to your findings…
So it looks like you may need to overhaul your clutch system.
Take a look at this link below (I go more in detail about the clutch system)…..
https://hyoriders.club/forums/topic/tutorial-hyosung-gv-gt-125-250-clutch-plates-replacement/
In regards to starting ? Not sure what the starting issue is. You would have to elaborate more.
False N’s can also be clutch system needing attention or electrical Gear “N” sensor (next to sprocket )
I say we deal with the clutch first , then see about dealing with the “N” light.
Hope this info helps!