[Spridgets] Carbs LBC content

[David Ambrose]

Jack Laird wrote:

>H1 carbs.
>
>I have been haveing more problems than the law allows. Think I have solved
>most of them now but.
>
>When I put the unisync to one of the carbs it covers the(1/4") hole in the
>body that goes inside and causes the engine to jump maybe 1K rpm. The hole is
>next to the large hole in the body inside which is the butterfly. I always
>thought it was an air balance thing.
>
>What is that hole for and why would it now be doing this. You can also put
>your thumb on the hole and raise the rpm.
>
>HELP
>  
>
That hole leads to the chamber below the carb piston. You don't want to 
block it.

I've never gotten any satisfactory results from a unisyn; on either 
LBC's or motorcycles. For the BC's, I use the standard SU tool kit.

Cheers,
Dave Ambrose