Alright so finally managed to find some time to work on the bike and try and get her running properly but I'm definitely going to need some help from some more experienced people!
The bike has been sitting for a couple of days now without being turned on. So today I hooked up the tank to ensure there was a constant amount of fuel going to the carbs (fuel is entering the carbs via the fuel line in this picture
), engaged the choke, and started her. She started with no hiccups. Leaving the choke on the bikes RPM went up to around 3000ish (possibly just slightly above 3000) and sat there running for a bit. There seemed to be some white smoke coming from the front of the engine where the exhaust connected to the engine. I'm thinking I may have installed the exhaust improperly but I'll explain the reasoning for that in a second. After the bike continued to run for about a minute or so I decided to slowly release the choke, as I did so the RPM went up quite a bit to around 4-5000 (not sure if this is normal or not to be honest I don't see why that would happen though. If anything I would think the RPM would drop). So i reengaged the choke to get it running as it was before right around 3000 RPM. After another minute or so the bikes RPM dropped slowly (took less then 30 seconds) and the bike died on me. I then let the bike cool down and I decided to pull the plugs to see what they looked like.
CYLINDER 1
CYLINDER 2
CYLINDER 3
CYLINDER 4
I definitely feel like the plugs shouldn't be that black..
So to basically number the current concerns.
1 If the plugs are that black, what might that mean and does it possibly relate the the fact that the bike will run and then die on me?
2 Regarding the white smoke coming from where the exhaust connects to the engine. The current exhaust that is on the bike is a new MAC 4-1 exhaust. I installed new copper exhaust gaskets, but I think I installed the exhaust incorrectly and thats whats possibly causing the smoke/leak The exhaust came with 2 types of flanges that look like this
. I read on a forum somewhere to only use the small flanges with the flat rimmed edge facing the exhaust port of the engine. But I'm thinking this is wrong. Should both exhaust flanges be used together some how or just one type of flange? If only one flange, should I use the smaller flange or the larger flange? I'm also thinking that the flat rimmed part of the flange should be flipped around but I'm just thinking that based off some exhaust diagrams I've seen. So to clarify the current way the exhaust is installed is: Header with finned clamp, then the SMALLER flange with the rimmed edge facing the exhaust port on the engine, then the copper exhaust gasket, then the engine itself.
3 Shouldn't the RPM drop when the choke is disengaged rather then rise?
NOTE: The airbox is not installed and the carbs were cleaned and rebuilt (new gaskets and and new jets (jets would be the original spec jets)).
Thanks for reading and hope to hear from someone more experienced then myself soon! (I should probably make a build thread with this amount of questions hahaha)