I've had a couple of 2-stroke street bikes. They did OK on plugs. My old 2-stroke dirt bikes were hard on plugs. Some of our race courses would change altitude by 4000+ ft. Either had to jet carb to risk siezing eng or foul some plugs. My tool bag was always filled with 4-5 extra NGK plugs for a 80-100 mile race. I experimented with different brand plugs. Denso and NGK did pretty good, all the others fouled quickly.