[Spridgets] Runaway motor

[K. Valentine]

Joe,

First, check the throttle return springs are connected and working  
properly and the throttle (butterfly) plates are closing properly.

Kevin V.


On Mar 29, 2008, at 9:32 AM, Joe Lansing wrote:

> After a used motor swap I bolted a different set of
> SU's on and fired up the engine. It immediately revved
> to about 4000rpm and I shut it off. The idle set and
> linkage appears about normal. What can cause this?
> Chokes aren't hooked up.
>
> Is it something weird like the carbs are set really
> rich and I have an air leak at the intake???