150 txrc carbs

[erniefish]

last ditch effort before i buy two new carbs, i have cleaned carb's 3 times, my friend , a yamaha trained mech has cleaned them 2x, carb bank 1 and 3 not picking up at idle, mid range and top end perfect, idle just is not right, it seems it is the whole bank, 1&2, 5&6, top end 5250 rpms,that seems fine, could i smoke a piston with a bad idle, not hatefull,just not right. thanks for any help e

[boats.net]

Check compression and reed valves.