Yes, I totally agree with starting with easiest first. Though it did go from running fine to not, I neglected to say that I have been living with this for a while, during which I have changed the plugs and gone through many tanks of gas. So we can probably rule those out. Although I keep the battery on a tender, checking my notes, I see that it is 8 years old! I'll definitely start there, as it should be changed even if it is not the culprit. Would be so nice if it turns out to be something so simple. If not, will explore the gummed carb idea. thanks!
_________________
-Jim
'93 MC21