Re: 80 Moby Carb questions

Ron Brown /
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Pat,

Lets start from the top and go through the throttle assembly, then you can tell us what is left over and how you manage to get a cable into the bottom of the carb.

Bear with me if I am repeating what you said. I am just trying for clarification.

I think your carb has an extra bowl with a fuel filter in it. I am ignoring this because I don't have one and it looks strait forward enough to assemble from the manual.

With the carb body in your hand, if you look in the big hole in the top, you are looking down on the opening (venturi) where the fuel and air mix on thier way to the engine. In the bottom center of this opening is a small brass diffuser, if you were to drop the slide into the big hole, it would sit on top of this. If the diffuser is removable (some are, some are not), it is installed from the bottom of the carb and held in place by a small brass screw with an axial hole through it. Access to this screw is by removing the main jet (if you see no screwdriver slot after removing the main jet, your diffuser is not removable). This screws into the bottom of the carb, directly below the diffuser. It has a hex end visible on the outside of the carb, a narrowed section with a hole drilled radially through it, then a threaded section with a very small hole drilled axially through the threaded section to the cross hole.

Make sure this assembly is together correctly, it really only goes one way.

In operation, fuel flows from the float bowl to the narrow area of the main jet, into the cross drilling, then up through the small hole which is actually the main jet, to the diffuser.

From the top of the carb, the top cover with the gasket and o-ring, spring and throttle slide should be assembled to the throttle cable. The top of the carb can now be fitted, Making sure that the cut away on the bottom of the throttle slide faces away from the engine. Try the throttle control while looking through the veturi to make sure it closes almost completely and opens all the way.

At this point, you have only choke pieces left over and I hope, not too many holes in the carb to fit them into.

Try to describe these pieces and where you think you are going to put them in the carb.

By the way, I think you have identified the choke correctly in the picture, but as you can see, this has the cable on top.

Ron

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  80 Moby Carb questionsTopic by: Pat Finley Pat Finley 10/30/01 01:23AM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/30/01 11:04AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 01:28PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 01:59PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:07PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 02:28PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:31PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 02:40PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:43PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:41PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 02:46PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:49PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 02:58PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 03:13PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 10/31/01 03:25PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 04:04PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 10/31/01 05:18PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 07:24PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 07:24PM
  Re: 80 Moby Carb questionsRe: Simon King Simon King 10/31/01 05:16PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 08:31PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 10/31/01 08:31PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 01:38AM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 11/01/01 02:16AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 04:04AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:43AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:44AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:46AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:47AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:48AM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 03:49AM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 11/01/01 12:47PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 11/01/01 01:11PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 11/01/01 02:24PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 11/01/01 03:03PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 11/01/01 03:06PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/01/01 05:35PM
  Re: 80 Moby Carb questionsRe: Ron Brown Ron Brown 11/01/01 05:42PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 11/01/01 06:07PM
  Re: 80 Moby Carb questionsRe: Pat Finley Pat Finley 11/02/01 11:40PM
  Re: 80 Moby Carb questionsRe: don-ohio don-ohio 11/06/01 02:52AM

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