Nearly killed by white van man!

My wife and I were run over as pedestrians in January 2008. We were on an island half way across a carriage way when a van lost control and wiped us out.

The consequence is that we have not been able to ride on my bike since (Suzuki Bandit 600). I am not able to keep the bike servicable due to still suffering with back trouble. It has sat now with no petrol and I’m worried that the carbs are all clogged up.

Can anybody help with cleaning the carbs or know how I can do it without removing them as I am unable to.

It’s a 1999 Bandit 600N with 1800 miles on the clock.

Please help as I would like to think in the next six months I will be able to ride again.