About 3 months ago my
#motorcycle started acting up on a trip to the south. Just when I was going to pass a RV it began to stutter on acceleration. I was on an almost empty tank on a pretty hot day.
I thought I was out of fuel but made it to the petrol station. Yet, even with fresh fuel the problem did not go away.
After doing some research on the web I replaced the fuel filter and fuel pump without even checking it because in my head (biased by web forums) this seemed to be the most logical solution (overheated fuel pump and clogged filter). Though, the problem still persisted.
Then I checked the stator and found that it was shorted on all three phases (wtf?!) so I replaced it.
Now the stuttering was gone but it still was hesitant/sluggish on acceleration.
I cleaned the air filter but that did not help either.
A friend recommended replacing the coils and while replacing them, I noticed that the vacuum tubes from the air filter box to the throttle body had gone brittle.
After having replaced the tubes, the bike seems to run smooth again now.
It took me two moths to figure that out and I spent more money than I needed to, but on the other hand I've got a working fuel pump and (most likely working) coils on the shelf and I learned a lot again.
And morale of the story: Confirm your assumptions before doing (unnecessary) replacements.
The season is almost over but if the temperatures do not drop below 5 degrees next week, I plan to go on my presumably last
#motocamping trip for this season and will find out if the
#motorbike really is healthy again.
