The type in your pics is for 'newer' engines beginning with SN 5558441 with the ALBERIO carb.
The other one mounts vertically like the oil bath cleaner.
BTW, I'm not sure where I found that S-7D/S-8D manual. If it wasn't from this site, I could U/L it, or make it available from my online storage site.
Edited by OldBuzzard, July 11, 2010 - 07:38 AM.