My bike runs very well now, ever since I added more space between chainrings and reversed their mounting bolts. The nuts are now facing outward, the bolts' heads are flatter. In case the chain jumps off, there's less chance of it jamming between bottom bracket and the flatter headbolts. I don't use my Jump-Stop plate anymore.
Yesterday morning, the roads were wet from the pre-dawn drizzling. I made it a point to ride cautiously w/no sharp turns, especially on the painted road surface. The roads were dry after work, so it was another pleasant 25-minute amusement ride home.
I'm low on gas. Usually I use 87 octane, but I'll try 91 octane w/Opti-2 this time.
The Tanaka 47R engine starts much easier with the new sparkplug.