When fitting a carb kit to a Walbro or Tillotson diaphragm type carb, you will notice that they supply two pumper membranes. A black one and a tan colour one. These two are made of very different materials. Why a choice of two and which one to use? The black one is for standard petrol. […]
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Carb Mixture adjustment technique
Nothing frustrates some PPG pilots more than trying to tune their carb correctly, especially on the diaphragm type carbs. Here follows a very simple technique to get it right quickly and easily – specifically for diaphragm type carbs, not for slide carbs. Firstly, some background info. A carb running too rich will run rough, the […]
Latitude /longitude confusion
When trying to enter a waypoint on a GPS unit, many people run into problems. Either the GPS rejects their input, or they end up with a waypoint in the wrong location which leads to navigational errors. Let’s look at why this happens. There are different formats for recording Lat/Long locations and one needs to […]