Zenith 26VA air filter

[Bob Culver]

The standard export Seven carb had a 4 1/2 inch plate as photo which accomodates the open choke, operated by an external lever. A wavy oiled gauze is trapped between another flanged plate spaced out an inch or so. I suppose acheives something although some sources reckon just ration the dirt. I found a curved shield in front of protectedf rom dust direct from the fan. An almost indestrucatble part; many must have survived here
Other traffic is a problem on metal roads. Hang back and coast thru thick clouds on idle so the engine does not suck. If you know the route let the racers go.