1977 bmw r75/7
So I rode from San Antonio to Austin. About half way there, the bike developed an odd 'stutter'.
At random intervals, the engine would skip a few beats. Not a backfire, just... nothin.. maybe 2-3 beats, and then it would pick right back up.
However, from San Marcos to Austin, the problem has intensified in frequency, but not in severity.
My worry is that the bike is going to die, halfway home.
I'd like to get some help figuring this out, and, if possible, fixing it.
my fuel filters appear to be shiney and clean, and I seem to be getting fuel.
I have plenty of oil, possibly a little too much oil.
I dropped the bowls, and they both had some fine, -incredibly- fine, rust powder in the bottom of the bowls. I flushed them, and flushed the float valves, and put everything back together. No change.
Any help would be greately appretiated, walking home sucks.