Didn't Clarence Lee use a four stroke OS 60, one of the old original ones running on Coleman Camp Fuel and ignition to cross the Atlantic, or do I have my memories crossed up??
Also guys, the Zama carbs are a bit smaller in outer dimensions than the Walbros. That's why Keith was using them on the original BME Super Tiger .90 on gasoline conversions. I made a Walbro fit on my Super Tiger .90 gas conversion, but it took some massaging/finessing....
AV8TOR