>I took the sentence to mean that the throttle was to be left in the >almost full 'out' position or in other words: just crack the throttle. >>All switches ON. Pump the throttle TWO times leaving it in almost full >>throttle ...just a small crack
I'm really interested in this, since I own an 1835 VW with an "underslung" Zenith carb on my "KR Construction Trainer". I think it's important for Bill Starrs to tell us what carb he's using, since the majority of the carbs on VW setups don't have an accelerator pump and stroking the throttle does nothing to introduce fuel into the intake tract or carb. It only exercises the butterfly in the throat of the carb. Now on a carb with a needle and slide, it may let liquid fuel come up into the throat of the carb. I don't know what pumping or stroking the throttle does to a POSA, a Revflow, or an Ellison on an engine that's not running yet. The starting drill I was told to use on my engine was to crack the throttle with ignition off (single Slick mag) and pull the prop through a few blades until fuel drips out the intake, then energize the mag and start the engine. Understand that the Zenith has a choke for cold starting, too, and it's used in lieu of a primer to enrich the mixture when the engine is cold. This is why I say it's important for Bill to let us know what kind of carb he's running and where it is in the intake tract. Thanks, Bill! Oscar Zuniga San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net