Another Carb tuning question.

[thovda]

So after getting spark back, thanks hillsy and Sonreir, I need to start getting the idle under control. The thing I noticed when running it today, besides the crazy high idle was the left pipe got super hot, and it had white exhaust coming out, not a crazy amount but enough. So when tuning the carbs, if that left cylinder is getting pretty hot, will I be ok for a while until I get it under control? It was hot enough it started discoloring the pipe. I'm thinking I need to adjust the throttle adjustment on the left carb, it may be open a little.
To start tuning too, the air mixture screw should be out 1 1/2 turns out, and the idle screw should be two turns in after it's bumped against the spring?
The setup is VM30 Mikunis and K&N air pods on a 74 kz400.

 

[eh_hull]

Have you checked the ignition timing as well? Retarded ignition can cause a cylinder to run hot as well as a lean fuel mixture.

 

[thovda]

I HavenT. Bummer Though, I Was Going To Start But The Left Plug Is Fouled And No Spark?

 

[thovda]

Plugs fouling.

Wow both my plugs are super fouled. The right cylinder plug is still firing but the left has quit firing. Before I stick new plugs in would it be wise to put in the next smaller jet for the vm30 first? I adjusted the idle screw correctly for starting adjustements, two turns in, and the misture screw is 1 1/2 turns out. It was way out of wack when i fouled the plugs. Should I wait to change the carb since I've adjusted the screws, give it a minute and then check the new plugs again?

 

[Sonreir]

Don't mess with the carbs until you know what is happening with the timing and compression.

Get a compression tester and a strobed timing light. After you're sure you have good compression and your timing is correct, then worry about fueling.

 

[thovda]

Thanks, sounds like it's time to buy some more tools.

 

[thovda]

Compression test the old fashioned/maybe stupid way!

Well timing is good. I didn't have a light so I used the ohms meter, learning new stuff all the time. It looks good, as soon as I got a reading the "F" mark was right in line with the other mark. Picture attached.
So i took a look into the carbs and my left carb was open quite a bit when throttle closed. Balanced the carbs out and took off! I don't have a compression gauge so I thought I'd find out the old fashioned way and compression seems to be fricking awesome! Bike is alot faster than I expected! But it's not running good, and the plugs are still way too hot and plenty of fouling. I'm sure I burnt them both up testing compression.
So...nooowwww...I'm thinking I need to adjust the amount of fuel it's getting?