I have a 1976 Honnda Goldwing motorcycle. It uses 4 carburetors on a horizontally opposed engine that cost $350 for the kits to rebuild, and my slides are worn out. Cycle Innovations sells a cast aluminum manifold with a Holley 1 barrel carb for nearly $800, and since Holley quit making the carbs, they are out of stock. It improves reliability, performance, and mileage. I made my own manifold out of steel thursday with a hole saw, die grinder, and mini-mig. If I had a TIG I would have used aluminum. I rebuilt and fit a Weber 32 DFD out of an old Ford Cortina. I rode it today with passenger up over the pass and back. HOLY CRAP!!! It is incredibly smooth and has a considerably better acceleration. It runs at
8000 feet with a passenger like it used to at sea level without her. 70 MPH to 100 acceleration takes about 1/3 less time, although I don't do that often. I think mileage is improved by at least 5 MPG, but I will have to ride alone in the flatlands to prove it. I went to install it and the corner wouldn't clear the cooling fan, so i whacked off the corners like I should have at first, and probably made it flow better. I coated the inside with Red-Kote fuel tank sealer in case of weld porosity, and it's rough texture will help add turbulence and aid atomization. I put a small well in the bottom for a hotter area to evaporate puddles, the silver tube under it carries coolant. I have to wait til monday for smog machine testing, but have good plug color. Here's some pics,
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