My Tractor Forum banner
Cancel

Lawn-Boy Walbro Carb

2821 Views 8 Replies 4 Participants Last post by  tgore3, 
tgore3
Working on a 6431 with the Walbro. Changed out the bowl (old one was corroded/leaking) and put in a K11-LMR kit today. Haven't tinkered with float type Walbros much and my bowl is overflowing. I just rebuilt the engine on this and was running a plastic carb while waiting on parts for the Walbro.

Pretty sure it's the new seat and needle not sealing. Is there a trick to installing that seat? I wasn't real confident with it compared to the threaded seats I'm used to. Looks like one would need a special tool or make a special tool to install it correctly. Not sure if it gets packed in there pretty good or what. The seat material was harder than imagined it would be.

This is what comes in the kit....Thanks, Toby
Save Share
1 - 9 of 9 Posts
Brad
Not really any trick to it. I am pretty certain that you put it in a certain way. Not sure if the little ridge goes up or down, but there is usually a direction paper included. Did you get one?

You could use the head of a small nail to push it in. Maybe put a bit of 2 cycle oil or MMO just to lube it a bit. Then, it should just bottom out easily. That's been my experience.
Save Share
Reply Quote
echoman
The small ridge on the rubber seat goes in upwards, into the carb body. There is a tool, but a drill bit of the same diameter works just as well IMO. Do use some light oil/lube when you install the seat also. The float is non-adjustable.
Save Share
Reply Quote
tgore3
No it didn't come with an instruction paper.

small ridge? I didn't see a ridge.
Save Share
Reply Quote
H
If my memory serves me correctly it is actually a groove in one side of the seat,and that side goes in first.
Save Share
Reply Quote
tgore3
one side was smooth, the other side had like a indented ring around it and an indented mark on each side of the hole, like a little screw driver slot across the hole.
Save Share
Reply Quote
tgore3
Just pulled it back off. Looks like I didn't have seat in it's little recessed spot down there. I used the back side of a drill bit and got it seated properly. Seems to be working fine now. I did manage to find reference the grooves, says the gooves face down when installing
Save Share
Reply Quote
echoman
Yes, it's actually a recessed groove in the seat.
Save Share
Reply Quote
tgore3
echoman said:
Yes, it's actually a recessed groove in the seat.
Click to expand...
Yeah, I did not know that but i do now, lol

Always learning :trink39:
Save Share
Reply Quote
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
My Tractor Forum
A family friendly forum community dedicated to all Tractor owners and enthusiasts. Come join the discussion about specifications, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
John Deere Forum Craftsman/Sears Forum Backyard Round Table: L & G Tractor Related Topics Introductions Walk Behind Mowers
Top