Bike Clutch and Gears.

[menzies233]

Question, I have a Honda CBR250R, i think it is 2012, but that is irrelevant. There seems to be something weird going on when shifting gears. Anyone understand what it could be?

1: Neutral to first is fine from a standstill, on a rolling aproach there is one hell of a clunk. (2nd to 1st is what I mean - stepping down gears as the bike is moving)

2: Shifting from 1st to 2nd sometimes it just goes to neutral - With no neutral light.

3: Downshifting from say 6th to 5th, it ends up in neutral but no indication (i.e. the neutral light does not come on - not that I expected it to, but why would a drop from 6th to 5th end up out of gear?)

Something wrong with the selector forks?

All other gear changes seem fine.

The other thing I did notice is when starting the bike with the clutch pulled in it sounds fine, then release the clutch lever and it sounds like a bag of hammers for about 10 seconds, is this simply the oil circulating to the clutch? ( My lad has a Grom / MSX and this does the same so maybe not a big issue)

Cheers,

Edited April 26, 2016 by menzies233

[VocalNeal]

Have you checked / changed engine oil and filter? The rattle on start up sound like that might be low oil or a dirty filter restricting oil flow.

[Rhys]

Take it to the shop..

[In the jungle]

It sounds to me like the clutch is not fully disengaging.

The bag of hammers sound suggests to me that the clutch release bearing may have failed. Part number is 96100-60010-00. Less than 100 Baht from a Honda dealer.

Not more than half an hours work to check and replace this part if necessary. Budget for a clutch casing gasket and oil change at the same time.

[thrilled]

Sounds like. To me as you downshift from 6th to 5th,your not going in gear all the way.Putting you n A false neutral.Thats why the neutral light coming on.As far as clunking in lower gears that's how those transmissions are.Mabe use A higher weight gear oil

Might help.It's probably been dong this since it is new.Not your starting to pay more attention to it.Motorcycles don't go thru gears

Like A knife slicing thru butter.I've had nearly 10 motorcycles they would all have A little crunch.Especially the lower gears.

Take it to A shop,allow an employee to take it for A quick ride.See what he says.