Yes – I used old slide and spring. Since them, I replaced the throttle cable and put a new spring on it.
Johns reply on fuel pump pipework got me thinking. The line from the crankcase to the fuel pump is much longer then on the other motor. I will shorten it up as much as possible. Also I notices this engine uses regular fuel line for the pump plumbing whereas the other motor as much smaller in diameter (and more flexiable) line. I am going to change over.