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Did this bike have a wreck at some point? I have never heard of a stator that suddenly interfered with the rotor. I have seen aftermarket stators that didn’t fit properly…but they don’t change shape. Has this stator delaminated?

That’s my guess as well.

Great diagnosis and trouble shooting. If you have checked and eliminated corrosion at all of the connectors, then you may have corrosion in one the wires. The most likely suspects are the main battery cables. You can test this by attaching a jumper cable from the battery negative to the engine...

Yes. Copper washers deform when they are torqued and should be single use. Also while you’re in there, take a look at the bushings for wear.

I would disassemble the forks and try to polish the tubes with oil and steel wool. Is the scoring isn’t too deep, this should restore the surface. Of course while the forks are apart you can service with fresh seals, bushings and fork oil. You can also measure the length of the fork springs to...

So it's Yamaha's fault because they aren't able to reproduce hundreds of thousands of components in a repeatable fashion. But our shock company - that no one has ever heard of - is able to get components from many sources in China that are amazingly consistent. Insane. As you suspected you will...

If you have low fuel pressure it is there all of the time. It manifests into a poorly running engine only when the demand exceeds available flow/pressure. It is easy to pipe-in the gauge adaptor and temporary connect the gauge to the bike.

Have you checked the fuel pressure with a gauge? Seems like a first step when the fuel pressure is suspected to be low. Otherwise you’re just guessing and throwing parts at a problem hoping for the best.

What a mess. I store my older bikes with 100LL avgas and the newer ones (EFI) with 89 non-ethanol to avoid spring fits of rage.

As punishment you’ll have to listen to two hours of videos titled “What is this noise?”.

If you have spark, then it's not the tip-over circuit. Corrosion in a connector should be investigated. I would inspect the connectors for corrosion along the electrical path for the fuel pump. Of course the simple action of a break/reconnect in and of itself could clear a corrosion problem.

Not that it matters for this application, but the conversion process does weaken the metal. Something to consider for structural applications.

Looks like surface rust, for now. If it bothers you, replace it. Me…I’d remove it, sand the rest off and paint it. I’d also replace the badly corroded clamps.

I’m sure it will be fine, but like Townsends suggested mounting I’d address your blown fork seals when you get a chance.

What I hear on this video (in addition to the normal FZ6 valve noise) is a high pitched whine. That’s a sound I don’t hear from either of my FZ’s.

If you put a piece of inner tube between the filter and the strap wrench, I guarantee you'll get the filer off - first try.

Welcome to the forum. Have you checked the instrument cluster to see if there are any fault codes stored? How does the bike run when this happens? If you open the throttle does it go away? My get feeling is that it's either a wiring issue (corrosion at a connector) or a sensor failing. If the...

It's hard to tell from the video...but from what I hear that sounds like a normal FZ6. Take another video using PauliusD's advice.

I’ve never met a filter that can’t be removed with a strap wrench. If you haven’t destroyed the outer casing, give it a go.

Happy birthday dude.