First off, a little about Bing carburetors: I used to hate them. Like really hate them. I’m not sure why that is, I guess when I first started working on mopeds I had a bike with a Dell’Orto SHA and my brother had a bike with a Bing and his carb was in rough shape so comparatively I just preferred the nicer of the only two carbs I’d ever taken apart.
Well, after spending the last two years honing my skills as one of the finer Garelli mechanics in the USA, I’ve started working on more Puch bikes and let me tell you: the honeymoon is over between me and Dell’Orto. After seeing how simple getting a Bing carburetor to idle was, I seriously considered converting my Itialian mopeds over to Bing.
So now, let’s get to the meat of this post:
When I took the carb apart on this bike, the little mixture needle and special little circle clip were missing. Just as I discovered this, Gabe Bandit showed up at my house. We grilled some hot dogs and I said “hey can a Bing carb run without a mixture needle?” Gabe said “no”, then added “why, do you need one?” Gabe had a needle, but not the little circle clip. Bummer.
Well dear readers, I’m not made of money, so I decided to go the DIY route once again. I took apart the carb on Power Animal Beau's bike, and used the needle clip to make a stamped image of the clip. Then I scoured the house for something made of metal that would be a suitable thickness.
I have a 3-month old baby in my house, and she drinks this special high-calorie formula for runts. she burns through about a dozen of these little bottles a day and each one has a metal lid. Stainless, and the perfect thickness! I used a pair of heavy duty scissors to cut the outer diameter, but the inside was too intricate to cut with scissors, and the metal is too thick to cut with an exacto knife. so I used a micro drill bit and my dremel to slowly router out the inner shape.