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Sudden Loss Of Drive. CB350F

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gtmdriver:
I was accelerating the bike hard up a slight hill and when I let the clutch out in fifth fear the revs shot sky high and there was no drive.

At first I thought that I had missed the gear but I checked and it was engaged correctly.

I slowed down and tried all the gears and the symptoms are the same in every gear.

There is drive at low throttle openings but as soon as any sort of power is applied drive is lost completely.

It doesn't feel like clutch slip. A slipping clutch is usually less noticeable in the lower gears but gets worse in the higher gears. This problem is much the same in every gear. I'm wondering if I might have stripped something in the primary drive.

Are there any known issues which I should check first?

K2-K6:
Can't immediately think of anything but the clutch.

Primary must be delivering drive to gearbox to have any semblance of drive at all.

They are only small diameter of clutch, if it's gone up in smoke it won't have much in the way of torque transmission at all and whatever the ratio. There's not much travel to lift the plates to open either, so it won't take much to be open in pure wear.

You could try backing the adjustment mechanism out to see if it's holding the plates open.

robvangulik:
No sprockets without teeth? The chain hasn't come off the rear sprocket? Does the clutch lever feel different?

gtmdriver:
Both sprockets are fine and the chain is correctly on the sprockets.

The feel of the clutch lever is the same BUT there is more free play in the cable at the lever than there was previous to the problem.

K2-K6:
You'd need to check the clutch adjustment at engine end as that's relative to how much material is on the plates.

Not the cable  :)

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