1982 maxim 1100 #1 plug black sooty new plug!

Hi I dont know whats wrong, carbs have been off and cleaned, wires trimmed, etc etc any ideas?

 

I did notice my caps are different, one has the slots in it others not, someones been diddydallying in this I see.

 

black and sooty can be lean unless wet.

did you do a wet set of fuel levels or just float height?

did you bench sync the carbs followed by running sync?

mixture screw adjustments where did you set them to start?

have you color tuned or plug chopped to check mixture?

you could open up the mixture screw on the sooty carb a bit , see how hot the exhaust pipe is compared to the others opening mixture screw up should increase temp some and decrease soot.

electrical
sounds like you have both oem and after market plug caps have you checked the resistance?
is the sooty cylinder the oem cap (screwslots inside plug side)
swap the caps for the sooty and its sister cylinder. 1 and 4 or 2 and 3. caps should be different styles for 1 & 4 vs 2 & 3.

if nothing changes , temp or soot. swap spark plugs.

 

Found a serious mousenest in the aircleaner! #1 cylinder nonslotted cap and #4 2 + 3 slotted, hmm checked comp 150 pretty even from 1 to 4 started her up adj idle idles better than since I got it, better throttle response, still gonna get it gauge synched soon will check plugs 2.

 

Mouse condominum wont help way it runs ya think? Lol

 

it may be a good idea to cover airbox hole during winter storage I have a filter that was totally striped of its element