Today, I received my manifold and my throttle cable parts from Flanders.

A lunch, I mocked up the TB and manifold and measured the combined height. I think I have 10 inches clearance under the fiberglass, as measured from the top of stock manifold cross tube.

Allowing for a little more than 0.25″ for the adapter plate and gasket, I only have about 2.25″ for an air filter. I think I can use a K&N RC-2380, which is a single filter with two flanges 75mm apart or RU-1822, which is a set of two filters identical to Buzz’s four. Obviously, I can rob two of these filters from Buzz for the time being. In fact, I’ve had one as a carb cover on this engine already.

To adapt the TB to the manifold, I will make a plate (or two joined plates) from 1/4″ stock, using the gasket as a guide. Atop that plate will be two cylindrical rings large enough for the base of the TB and an O-ring to slip into. It will have a bracket of some sort to secure the TB to.

The throttle cable is pretty normal throttle cable stuff. I had originally ordered parts for this trike, but used them on the Yellow Trike. These that arrived today are pretty much just replacements for those. Of course, now I need to connect it to the TB eccentric instead of the carburetor.

Finally, while this is not particularly EFI related, the guy at Mid Cities Cycle called, announcing the arrival of the switch pod. This will allow me to wire all switches except for the key switch to the left handlebar, just like the Yellow Trike, except that I won’t fry the start switch on this one. The solenoid on a VW starter pulls way more current than the little switch could handle. The simple addition of a relay addresses the issue nicely.