parts included in zinc kit

[fatcatone549]

Hi Can anyone tell me what and where the smal round black rubber that comes with the zinc kit is for and where it goes? Dave

 

[Lazy Daze]

Assuming you took a few minutes to look at your drive and didn't find it, it's probably missing from your drive (not that uncommon). It plugs that hole where you access the anti-cavitation/ventilation plate anode.