bad misfireing on left cylinder need suggestions please

[snowman403]

i just had my 06 banshee top end redone and carbs cleaned and synced went to start it up and she seems to have a bad miss fire on the left side both sides are at 120 psi for compression what else could be causeing this problem thanks 

[Larry's Shee]

Start with swapping plug wires side to side.

Have you done a leakdown test yet? If not, come back when you have.

Float bowls on correct carb? They're different.

Choke tube?

Slides correct?

[snowman403]

i have not done a leak down testyet no i will look up how to do that the carbs were done at my buddys shop when he did my whole top end synced and cleaned ill try the wire switch today and see if it follows to the other side 

[Larry's Shee]

Ohm plug caps seperate. Set pickup gap?

[Gumball12]

Choke Tube

[snowman403]

sorry for the long time to respond been working like crazy i finally got the leak down tester and pumped it up to 6 psi after 10 mins i havent lost a thing in preseure sooo im thinking an air leak is not the issue choke tube seem to slide in and out tooo easily but i dunno if that will have anything to do with it it has brand new plugs still prettty hard to get it started even now looks like i have bright blue spark on the plugscabs were cleaned when top end was done thuroughly whats next on the hit list to check  lol need to get this bad boi rocking for may long 

[snowman403]

slides and float bowls are corect  you were saying bout reading the ohs on evach plug indiviudally can you give me a quick know how on what it should read an the prodcedure thanks  what about fly wheel key could that be an issue ?