how to drain carbs on 2007 70 hp yamaha

[toledobound]

I have been told to clean the bowls on my carbs due to a little rough running up to 2000 rpms, after 2000 rpm it smooths out. Do I have to remove the whole carb assembly (all 3 carbs) or is there a drain plug that will drain the carbs individually without taking them off of the engine. And if so do you think that it will cure my rough running problem? I am pretty sure that the carbs have some debris in them because when I trim way up it runs better than trimmed all the way down! (up to 2000 rpm) Thanks in advance for advise !!

[99yam40]

I would pull them and clean properly

[toledobound]

I think I will follow your advise and I appreciate your input. I am not a mechanic but a mechanic told me that it was not a hard procedure. Thank you ! I will try it this weekend and if all else fails bring it in to have it done by a marine mechanic!

[99yam40]

a Yamaha service manual is needed to make sure you adjust everything properly