Hi, it can be anything, maybe even failure of spark plug as you wrote and occurs while on the load. Need to check

Here is a photo outside. I also changed the oil filler cap to a black and red one after this photo was taken.

I also need to add the black with red accent engine protectors that goes in the whole in front of the engine. Today I took it in for the 600 mile service. I asked about the torque specs since the front whole has a screw to the top front of the engine. I need to clarify with the dealer if the specs he gave me are Newton Meters or Foot Pounds of torque.

I also ordered the Large Meter Cover and some red screws for the stock or larger cover. I will mostly use the stock one around town and will only use the larger one for long trips. Here in Florida it's nice to have the breeze. I normally cruise on A1A along the ocean and the speed limit is mostly 45-50MPH so the small cover is fine for those speeds. After 70 is where I'm hoping the larger Meter Cover will help and that will only be on longer trips. I think it already shipped and I should have in in a few days.

Hello. I am not a mechanic at all and only really have general knowledge about automotive things.

I have a 2020 zr900FLF. For engine mods all I have done is a mail in 2wheel dynoworks flash and a full LeoVince exhaust. Ive got 16k miles on the clock and had the bike in 6 months ago for the 15k mi service with the dealer.

I have encountered a weird thing twice now. I am pulling hard WOT in 2nd up around high rpm something between 8.5k and 10K the engine seems to have like a sneeze or hiccup. Its weird there is no after fire or pop or bang or any noticeable loss of power. Its almost like how I would imagine a spark plug doesn't fire and no combustion happens in just one chamber for one or 2 cycles and then the next time the cycle comes around for that cylinder to fire its all good. It doesn't do it a lot, I have only noticed it twice and only when giving it the beans as they say. I am going to try to get it to do it again soon but I need some open road and no traffic.

Does anyone have any thoughts on what this could be?

Also I ride in road mode and I have not noticed the TCS flashing at me but IDK it could have been and I didn't notice it. Would the TCS cut spark like that but just for a fraction of a second?

what about chain size? how do I know if existing chain will be sufficient if change to 16/41 or 42 or if I'll need to get bigger?

Sounds like you're on the right track replacing fluids, etc, but I'd be concerned about what kind of damage the thief did when it was wrecked, also.