Welcome to the DoItYourself Forums!

To post questions, help other DIYers and reduce advertising (like the one on your left), join our DIY community. It's free!

Lawnboy problem


Jack B.'s Avatar
Member

Join Date: Jul 2003
Posts: 590
AL

06-24-06, 05:20 AM   #1  
Lawnboy problem

I have a model 10227 lawnboy walk behind and am having carburetor problems. There is a "fuel shield" just outside the carburetor that seems to be causing the trouble. I can start the engine and it seems to run as if it had a choke valve fully closed (very rich). However there is no choke valve only a primer. When I press the primer just once, it sprays gas back in the air filter. I took the fuel shield out and it really sprays gas into the air filter and I haven't been able to start it. I have completely rebuilt the carburetor including a new float. It just seems that the fuel shield would act like a partially closed choke valve.

 
Sponsored Links
cheese's Avatar
Forum Topic Moderator

Join Date: Jul 2001
Posts: 16,573
GA

06-25-06, 12:55 AM   #2  
By that description, I'd really want to take a look at the muffler to see if it's clogged, or the exhaust port from the engine to the muffler. Sounds like exhaust restriction.


"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

 
Jack B.'s Avatar
Member

Join Date: Jul 2003
Posts: 590
AL

06-25-06, 04:14 AM   #3  
Cheese, I've already taken the muffler off and checked it and the exhaust port. It just seems wrong that with one push of the primer bulb...there is gas running into the air filter.

 
hopkinsr2's Avatar
Member

Join Date: Feb 2005
Posts: 1,561
Non-US

06-25-06, 06:55 PM   #4  
Is this a 4 cycle briggs? If so, than the "fuel shield" I think you mean is the back of the air filter housing. If the gasket between the housing & carb is torn, this may be you're problem. The primer pumps fuel into the housing & thru the "fuel shield." But only on the B&S engine

 
Jack B.'s Avatar
Member

Join Date: Jul 2003
Posts: 590
AL

06-25-06, 07:53 PM   #5  
No, the engine is manufactured by lawnboy...it is a 2 cycle engine. A picture of the "fuel shield" is at https://lookup2.toro.com/partdex/ind...Caller=lawnboy it is part number 6.

 
lexmarks567's Avatar
Banned. Rule And/Or Policy Violation

Join Date: May 2006
Posts: 610

06-25-06, 08:04 PM   #6  
Ummmm.......they want the model number of the lawnmower so we cant view it. I entered 6 and a WHOLE bunch of models came up.

Posted By: Jack B. No, the engine is manufactured by lawnboy...it is a 2 cycle engine. A picture of the "fuel shield" is at https://lookup2.toro.com/partdex/ind...Caller=lawnboy it is part number 6.

 
cheese's Avatar
Forum Topic Moderator

Join Date: Jul 2001
Posts: 16,573
GA

06-26-06, 12:46 AM   #7  
The model number has already been given at the beginning of this thread.

I was thinking it was spraying gas back toward the filter when you had it running. Could the carb just be flooding (needle not seating), and that's why it won't start? Is the plug wet? Did you get a look at the piston with the muffler off?


"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

 
hopkinsr2's Avatar
Member

Join Date: Feb 2005
Posts: 1,561
Non-US

06-26-06, 07:02 PM   #8  
O.K. The "fuel shield" is the throttle plate. It's supposed to be there & it controls eng speed. Sounds like a float sunk or a leaking needle. The gas puffing into the air filter may also have something to do with the reed valves. Why was it rebuilt to start with?? Is it only spraying into the filter with the engine off when you're priming it??

 
Jack B.'s Avatar
Member

Join Date: Jul 2003
Posts: 590
AL

06-26-06, 07:31 PM   #9  
It sprays into the air filter with the engine off and when I only press the primer just once. When I rebuilt the carburetor it was complete including a new float.

 
Search this Thread