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Re: 49cc scooter revisited.

To: Mark Andy <>
Subject: Re: 49cc scooter revisited.
Date: Mon, 15 Aug 2005 07:42:26 -0700
On Sun, Aug 14, 2005 at 05:57:07PM -0400, Mark Andy wrote:
> On to the carb...  This carb has a barrel shaped "slide" that as you turn 
> it opens up a hole, as well as raising itself on a cam, which presumably 
> raises the needed.  Under all that is a block that sorta kinda looks like 
> a float bowl, but perhaps is the fuel pump folks were mentioning before. 
> Underneath _that_ is a prime bulb.

Sounds like a Walbro of some kind.
Like this-

Walbro troubleshooting chart:

> There's an idle speed screw that hits the throttle bracket dealy, then 
> another screw on the top of "slide", then another screw on the bottom of 
> the carb.  Anyone have any idea what the last two screws do?

Low and high "speed" (throttle opening) mixture adjustment.
Low is in effect at all throttle openings, high is in effect above 1/3 

Dunno which screw is which.


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