Joined Dec 2023
434 Posts | 93+
Texas
Rats. I thought my quickshifter was bad, so I replaced it, and I'm still having the same problem: on the track, the engine cuts out quickly like the ignition or fuel, is being cut. I'd love some ideas. Here's a summary:
- Testing the bike on the street weeks ago, everything ran smooth. When I went to the track, the first two sessions were ok But the Translogic quickshifter was too sensitive for my tastes, so I swapped it out for OEM.
- But somewhere in that session, I started having what felt like unintentional activations of the QS. As the session went on, the shift level became a bit jammed and weird, so I pulled off.
- The bolt holding the shift linkage had backed out (my fault), and was rubbing in to the swingarm, impinging the shifting. I tightened that up, and went back out. Still had the misfiring issue. So I assumed that I had broken something due to the bolt backing out.
- At home the next day, I took the QS apart and noticed that the little pin the moves back and forth to activates the bi-directional switches was slightly bent. So I ordered a new OEM QS and replaced it.
- Back on the track yesterday, same problem. So I disconnected the QS, at the connector next to the shift shaft, and went back out. Still happening. So I think it can't be the QS, right?
- This And it's intermittent and kind of stops when I pull off the track and then go back out. And I can't recreate it riding fast on backroads, so it makes me think it's something with the lean angle sensor or similar.
- This did seem to start happening when I jammed up that QS, so maybe it did something inside the shift shaft? But I doubt it. I think it's just coincidence.
- You know what, I bet those accidental activations of the Translogic QS were not actually accidental activations of the QS, but the start of this problem...
- I'm not getting any CEL codes or ERRORs. (Except when I unplug the QS, I get ERROR on the dash, which is right.)
- I'm going to pull the body work off today and have a look at everything, but I doubt something came loose. Either something was bad when I got this bike (again, it was a salvage), or, more likely, I installed something incorrectly.
- Oh, and I reflashed the tune, and that didn't fix it.
- My mechanic just went on a cruise, but he thinks that maybe it's the Lean Angle Inertial Tipover Sensor, which make sense. I never took this off or messed with it in my build, but maybe it came loose.
