I have used one on my $$$ for a number of years. She was a coil eater, and burned up those cheapy aftermarket replacement Kohler coils about one a year. Runs a lot smoother, and very relyable.
The main advantage to the Bosch blue ones is the epoxy filled windings,instead of an oil filled canister ,that can allow the secondary windings to rub together,and short out under the high heat and vibration found on small engine applications..the higher voltage is nice too,whether a small engine "needs" it or not is open to debate...I'd say just about any 12V coil is an improvement over the stock magneto one..
I heard the same thing and read it also yes stay away from the one's made in mexico google bosch blue coilYou guys seem to think pretty highly of this product. So, I'm keeping the one Bosch blue that I have, and maybe I'll get a few more for my other tractors at some point.
I did some reading about the Bosch blue coil. It seems that the good ones were made in Spain, but you can't get those in the U.S. anymore. Next best are the ones from Brazil. That's where mine is from. I also read that the one's from Mexico are to be avoided.
Anyone else head that? mg: