Jolt/Slip in drive-train

[Keeper]

I have been just going of the workshop instructions to service the gears, splitting the crank case is step 1 once the engine is out!

i dont downshift without the clutch too much anymore, but still drop it into gear to keep the revs high, I thought the slipper clutch would take all that strain though.

Does what you said mean I may not have to open the crank case and (praying for it) not drop the engine out again... to get to the shift forks?

[T.W.R]

I have been just going of the workshop instructions to service the gears, splitting the crank case is step 1 once the engine is out!

i dont downshift without the clutch too much anymore, but still drop it into gear to keep the revs high, I thought the slipper clutch would take all that strain though.

Does what you said mean I may not have to open the crank case and (praying for it) not drop the engine out again... to get to the shift forks?

I've just had a nosey at the parts diagrams of the crank case layout & it doesn't readily identify how the trans sits with in it, but however looking at the casing shape it unfortunately does look as if its going to be a major strip-down.
the mainshaft access looks to be removable without splitting but the selector forks & drum location isn't identified easily, possibly its a piggyback set-up.
when you split it your best to check crankshaft journals & shells while your at it because they will get disturbed when its apart.
its the typical major piss-off with engines one small part requires major action just access it.
Hope it goes to plan & nothing causes any un-due headaches