O-Ring-13.​5 X 1.​5-Arai

Although I own the Honda repair manual, it was of little help. I tried to find a video for this model on the internet, but could not find one for my HS 1132
Rather than try to figure out what was leaking, I just bought another carb and choke ass. It is not that expensive, compared to almost $4K for a new blower.
I carefully took photos with my cell phone at each step.
You must remove the shroud to get at the carb. After that, it was sort-of obvious what to do.
The choke cable is attached to the choke assembly with a circle clip that was a bear to remove and replace.
Take careful note of the several springs that must be removed and put back.
After assembly, the motor started on the first pull. No adjustments were required.

check engine was worn out, purchase a long block, and all parts needed put together started up made adjustments and engine run's great.

Removed fuel tank then unscrewed the old fuel joint and then screwed in the new fuel joint. No more leaks.