Hello everyone, I’ve recently purchased a “Honda grom clone” and every time I would start the bike and it would idle really low and stall out. It would run fine for a few seconds then bog down and didn’t get any throttle response. Today I changed the oil and the spark plug. The spark plug was pitch black. Once I replaced it the bike ran better than it did before but would idle at 2000 rpm. I let it run for about a minute to get the oil circulating and I started to smell gas like the engine was getting too much gas and the spark plug started smoking. I immediately turned it off and pulled the spark plug out and it was black.
1.8 MB Views: 36