Only firing on no. 2 and 3

[Scottie1]

Hello my fellow FJ gurus. On first start up my bike on my gets hot on number 2 and 3 exhaust. It's also rough on start up for about 1 minute then all four cylinders kick in and it runs good. It's just the initial start up until it's warm. Being 1 and 4 are in the same coil could it be a bad coil. I have a new battery and the carbs have been cleaned and balance.

[Pat Conlon]

Could be the ignition coil.
Could be a dodgy power supply to the ignition coil.
Could be the pick up coil that triggers the ignition coil.
Could be the wires and connectors between the two.

[FJ_Hooligan]

Quick test to help isolate.

Swap the plug wires between 2/3 and 1/4 then swap the coil connectors (I believe they are interchangeable).

If 1/4 fire and 2/3 do not then it's the coil. 

If 2/3 continue to fire and 1/4 do not then it's not the coil

[balky1]

Bad spark plug will do that, although it is a bit suspicious to be 1 and 4 at the same time. But who knows.