Zephyr 1100 engine part identification?

[Pigford]

Okay chaps,

See the bit I've circled (r/hand side of engine under ignition casing), there's a splined shaft with lever attached behind the oil feed pipe - WTF does it do?

zephyr1100.jpg (848.11 KiB) Viewed 1461 times

Had to ask as being a bit bored at work was puzzled by what it could be.

[moizeau]

I think it's a crankshaft balancer

[kev edwards]

It is the balancer shaft lever Mark.

[Pigford]

Ah, thanks chaps, learn summink every day.