Xplorer

This article will explain the lever height setting on the WH8 carb which is independent of which motor you use it on. 
https://www.southwestairsports.com/ppgtechinfo/top80/hrservicenotes/walbrowg8/ml_height-variations.htm

Note that the Moster uses a different carb. 
The WG8 has no High mixture adjustment screw.
Instead, it has a High Jet. 
These are used on most small engines up to approx 130cc. 
The bigger engines typically use the WB32 or WB27 which has a High mixture adjusting screw. 
 

The ONLY difference between B8HS and B8HS-10 is that the latter has been accurately pre-gapped to 1.0mm which is way too big for the 210. You can re-gap it though. Anywhere from 0.4 to 0.6 is good.

A larger gap retards the timing slightly for extra safety.

Smaller gap gives a bit more performance at the risk of detonation.