B40 wd kick start not returning until engine stops?

[rhyatt]

The back half of that inner cover contains gearbox oil sae 40 and is held back from the front half by the vertical rib you can see.
Always replace the front AR unit oil seal.
You can just see the breather exit hole at the top front corner of this rib , it breathes out of the clutch cable block .

[Bowler]

Yes the hole is just below and to the right of the quadrant.if you look closely at the picture(enlarged)then you can just see a dribble of oil. The only seal I can see on the cover was around the kick start shaft? The cover itself was sealed with sealant (hylomar). No physical gasket and was a blighter to get off. I did expect a lot more oil to exit so must check gearbox level. 

[Bowler]

Sorry just seen the post on the advance retard seal. I will sort that as there is a small leak obvious. Many thanks 👍

[hoogerbooger]

Yes it is the seal on the outer case over the kick- start shaft I was referring to. Mine leaks for Wales.....when the gear box is correctly topped up.....