The fog and the Killer Bee throttled backplate

The fog in may area keeps me in my room not allowing me to fly my planes, and makes me think of how I could further upgrade my favorite reedie.

When measuring the dimensions of the air-intake on its Killer Bee backplate I noted it is tapered at the end, and does not fit the groove in the snorkel pipe of Bernie's throttled carb, that comes on a modified Sure Start backplate. No matter how hard I push the snorkel against the air intake, there still remains some air leakage that would disable to some extent the throttling effect.

So I went back to my toolbox and found a small O-ring that (though born in a SI metrics environment in Europe) fits the groove of the snorkel quite well.

After the O-ring is pushed in the groove, the Killer Bee backplate accommodates the throttled snorkel without any air leakage at the air intake around the groove. Here are the components:



(The snorkel comes from a normal Sure Start as my throttled snorkel serves on my Canary...you will also note that I pushed a mesh screen inside the air intake, though the Killer Bee is made with an enlarged air intake diamater to allow higher airflows...this screen blocks the airflow a tiny little bit but is worth the cleaner engine run..)