AVB it is the lack of water as to why we use the snorkels, dry/dusty conditions. The Victa 2 strokes are the main ones that use the snorkel, it is part of the throttle assembly with the throttle cable running inside it. Many of the commercial Hondas use the standard filter with the filter cover having a snorkel out of it so it has a second filter up high out of the way of dust. The odd Rover with a Briggs has a snorkel , but the majority just have the standard low level filter, maybe this is partly why these motors fail compared to the 2 strokes
