Did the rain screw up my bike or was it a coincidence?

[Spiff]

I did pretty much the same route today and the plugs indicate a richer burn but I'm still not convinced it's going as it should. Still feels lazy.
I also noticed on the plugs that number two was really black, and the smell of fuel is pretty bad, so I take it the needle valve isn't stopping and at least that carb is over fueling.
Anyways, I'm gonna call it quits now. I don't have the space and time to figure it all out now but thanks for your help so far.

 

[Suzukian]

I don't remember if you said you rebuilt these carbs, but you may find it worth while. When I did mine, it solved all kinds of little demons I was chasing.

 

[Big T]

I did pretty much the same route today and the plugs indicate a richer burn but I'm still not convinced it's going as it should. Still feels lazy.
I also noticed on the plugs that number two was really black, and the smell of fuel is pretty bad, so I take it the needle valve isn't stopping and at least that carb is over fueling.
Anyways, I'm gonna call it quits now. I don't have the space and time to figure it all out now but thanks for your help so far.

You need to check to see if fuel is running down the vacuum line into number two carb

 

[Spiff]

I don't remember if you said you rebuilt these carbs, but you may find it worth while. When I did mine, it solved all kinds of little demons I was chasing.

Not a proper rebuild, just removed all jets, needles and opened them up and made sure all the passages where open. But it wouldn't surprise me if some shit has loosened after use and started to clog something up...
I watched a video I filmed yesterday from last Sunday and the thing ran perfect. It's like it ran good, then the more I have driven it the worse it has become

 

[Spiff]

You need to check to see if fuel is running down the vacuum line into number two carb

Thats not a bad idea actually!

 

[Suzukian]

Smell your crankcase oil, put some from your dipstick and run in between your fingers to determine if the viscosity has thinned out by gasoline getting in there. Check the level, if it's higher, then it may have topped off with gasoline making it by either a float, or a bad petcock.

 

[Rijko]

Buddy of mine recently serviced a bike, would run great but within 15 minutes into the test drive would start running bad.
Turned out there was a bit of water in the tank.
Clean carbs, run great on external gas reservoir but when connecting the gas tank just a few drops
of water in the carbs would mess things up.

 

[Rijko]

You need to check to see if fuel is running down the vacuum line into number two carb

yes, another good quick check is disconnect the vacuum hose, (and plug it) and run on prime.
Rules out gas through vacuum hose, but also issues like leaking vacuum hose and throughput
while on vacuum operated ON/RES.

There is one of those see through fuel filters on there so it's easy to check fuel supply.

May want to temporarily remove that, some of those restrict gas flow.