From this I inferred that engine 2 had a carburetor problem. In this article, I discuss the specific engine/carburetor problem, and the surprising solution to this problem.

… I recently had the opportunity to sit down with Brent Weaver, Garrett’s chief design engineer to talk about gold-oriented detectors, how they work and how prospectors can get the most out of them.

Looking at the exceptions to the basic rules is sort of an advanced prospecting discussion, but the readers of ICMJs Prospecting and Mining Journal are plenty able to handle it.

…early last fall, I found my first gold-rich patch along a few crevices in the same river and found five grams of gold nuggets in one outing.

On my final prospecting day of 2020, I went up to a spot where I had found gold years before and had my best day of  the year—four nuggets for nearly one-quarter-ounce of gold.