Chainsaw Repair

How To Basics - Carb Fixes + Mods - IPL and Service Manuals => How To Basics and Fixes => Topic started by: KilliansRedLeo on April 29, 2014, 12:26:53 pm

Title: Walbro carb kits
Post by: KilliansRedLeo on April 29, 2014, 12:26:53 pm
Just order in a bunch of diaphragm kits for walbro hda-12b carbs noticed that the pump diaphragm has changed or was manufactured in error. It appears that they have some kits (mine dated 06/12) have apart on the wrong side compared to a factory carb. See attached picture. The only way to get all the holes to line up is to in stall the diaphragm as shown in the picture. Anyone notice this?

Don't think that it would really maake much of a difference but thought folks should know
Title: Re: Walbro carb kits
Post by: 660magnum on April 29, 2014, 12:38:20 pm
The new ones are put together backwards.

You may can use them to punch the two locater holes.

The wheel goes towards the lever.
Title: Re: Walbro carb kits
Post by: KilliansRedLeo on April 29, 2014, 01:53:29 pm
That will work if you have a 2mm hole punch. I have notified the distributor of the problem. He tells me that the whole batch he got in were dated the same 6/2012 and will be returning them for exchange. He verified a dozen kits out of his stock and all were bad so his whole stock goes back!
Title: Re: Walbro carb kits
Post by: brokenbudget on April 29, 2014, 04:39:34 pm
this isn't a new problem. I have some kits from back in the '90s with the diaphragm center on the wrong side. and punching the holes won't work as the shape of it needs to match the carb body.
Title: Re: Walbro carb kits
Post by: 660magnum on April 29, 2014, 06:20:02 pm
You got me upset and I went and checked all my HD12B repair kits and they are OK.
Title: Re: Walbro carb kits
Post by: Cut4fun . on April 29, 2014, 07:50:25 pm
I received some walbro WG for 3120 carb rebuild kits that had complete wrong diaphragm in the packs.
Title: Re: Walbro carb kits
Post by: KilliansRedLeo on April 30, 2014, 08:01:57 am
Sorry about that Jim! I had a immediate need for 5 so had to get them from another source and pay through the nose! The ones that were bad had the diaphragm cut correctly they just put the wheel on the wrong side, still junk but I guess they only half screwed it up!
Title: Re: Walbro carb kits
Post by: Cut4fun . on April 30, 2014, 04:00:14 pm
Tim are these aftermarket kits that were like this?

Mine was OEM walbro for WG's.   ???
Title: Re: Walbro carb kits
Post by: KilliansRedLeo on April 30, 2014, 04:13:48 pm
These were genuine Walbro kits for HDA carbs came in Walbro marked bags! Came from mowers4u, never had a problem with products from them before!
Title: Re: Walbro carb kits
Post by: 660magnum on April 30, 2014, 04:27:29 pm
Mine say Made in USA but there is no brand name. I have used some of them and they have not given any trouble.
Title: Re: Walbro carb kits
Post by: sharkey on April 30, 2014, 06:24:16 pm
Thanks for the heads up, I went through mine so far so good.