Bought the bike as a non-runner. It was crashed, had a broken engine cover so it just sat in a garage for 8 months before I picked it up.

Anyway, I fixed the engine cover and bought a new radiator. While I was at it, I went ahead and replaced...

-spark plugs
-deleted the PAIR system (PAIR block off plates and eliminator plug so no CEL)
-new engine oil (no metal shavings in the old oil)
-new air filter
-and new battery
-pick up sock

I went to start the bike it idled for a while, but then died. I noticed it sounded like it was missing on 1 or more cylinders. I went ahead and removed the plugs (the first 3 were clean, the 4th one was darker on the end, indicating that was the cylinder that was running), checked compression, every cylinder was at 220 PSI. I then checked spark on each coil and plug and it had good spark. I went ahead and removed the fuel pump and replaced the pickup sock, the old one was dirty so I replaced that too. I checked fuel pump operation by hooking a hose into it then cycling the key, plenty of fuel went into my empty water bottle. When I cranked the bike a lot more went into the bottle as well. Fuel pump appears to work fine.

After doing all of that the bike sounds better, all cylinders are running it appears... however..... after idling for about 15 seconds, the idle dropped and it died. Then it wouldn't fire up again. I tried giving it throttle and hitting the starter it would turn on then die almost instantly after. I eventually gave up because the starter is making weird noises and i'm afraid i'm just abusing it maybe the starter clutch is getting extra wear... but it sounds kinda clunky when I crank it.

Here's a video of it running before it died (when it was missing on multiple cylinders) https://www.youtube.com/watch?v=6zL890KoOao

Here's a video of the starter clutch making weird noises: https://youtu.be/SVKg3O983Go?t=34

I tried taking a video the last time I had it running well here, I only got it right before it died though. It made a "puff" sound right before the bike died... strange huh? Not sure what that could indicate https://www.youtube.com/watch?v=yYXwP2teC8Q

Here's a picture of the pickup sock, new vs old

Any ideas? Thank you in advanced!

Additional Info:

2012 with 18k miles
Stock except a full Akra Exhaust

* Last updated by: herodanny on 6/1/2020 @ 8:33 AM *

At first I thought it was a clogged injector... but now i'm not so sure. I heard there's a "wax unit" which is responsible for the idle being higher on start up, I thought maybe that's the problem but I just don't know because when I give it gas it doesn't want to rev it just dies anyway.

I think it could possibly be a venting issue, but when I opened the gas lid and tried cranking the bike it wouldn't fire up and again the starter clutch is making strange noises so I decided to leave it alone for now. Now i'm just sitting here scratching my head not sure what to do next. Also when I open the gas lid I never heard a hissing or popping sound at all so I'm not sure if it's a venting issue after all..

Bump?