Home Page link

Briggs & Stratton Engine Problem

Home| Search | About
Login Password
Register Now! Lost Password?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Page 11 of 11       << first < 1 2 3 Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Briggs & Stratton Engine Problem Manjo 04-16-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Manjo on April 20, 2008, 8:41 am
> Manjo wrote:
> > I have a leaf blower that uses a 5 hp B&S "L" head engine. =A0...
> ...
> > The leaf blower was starting to run poorly last fall. =A0This spring it
> > started right up, but after4-5 seconds after running smoothly at
> > proper speed, it will slowly loose rpms and finally stop after 15-20
> > seconds.
>
> > I have cleaned the pick-up tube, replaced the carburetor diaphragm
> > fuel pump along with the gaskets between the carb and the fuel tank,
> > and the gasket between the carb and the engine. =A0I've also
> > disconnected the engine ground wire that normally kills the engine
> > when the throttle is tuned full off. =A0But after doing all this the
> > engine still will not stay running for more than 30 - 40 seconds.
>
> > Thanks in advance for any tips, suggestions, or coments.
>
> I've not read the rest of the thread but noted you were apparently still
> searching --
>
> Anybody suggested checking the exhaust screen (I'm assuming it has one)
> for C deposits? =A0Sounds like it could be clogged w/ buildup which will
> cause such symptoms...
>
> --- Hide quoted text -
>
> - Show quoted text -

The exhaust has not been checked. I did put my hand near the exhaust
canister and I could feel puffs of air as the engine ran at normal
rpm. But now that you mention this, the air pressure felt a little
low or soft. I'll pull the can and check it today. Manjo

Posted by Oren on April 20, 2008, 4:42 pm
wrote:

>> Manjo wrote:
>> > I have a leaf blower that uses a 5 hp B&S "L" head engine.  ...
>> ...
>> > The leaf blower was starting to run poorly last fall.  This spring it
>> > started right up, but after4-5 seconds after running smoothly at
>> > proper speed, it will slowly loose rpms and finally stop after 15-20
>> > seconds.
>>
>> > I have cleaned the pick-up tube, replaced the carburetor diaphragm
>> > fuel pump along with the gaskets between the carb and the fuel tank,
>> > and the gasket between the carb and the engine.  I've also
>> > disconnected the engine ground wire that normally kills the engine
>> > when the throttle is tuned full off.  But after doing all this the
>> > engine still will not stay running for more than 30 - 40 seconds.
>>
>> > Thanks in advance for any tips, suggestions, or coments.
>>
>> I've not read the rest of the thread but noted you were apparently still
>> searching --
>>
>> Anybody suggested checking the exhaust screen (I'm assuming it has one)
>> for C deposits?  Sounds like it could be clogged w/ buildup which will
>> cause such symptoms...
>>
>> --- Hide quoted text -
>>
>> - Show quoted text -
>
>The exhaust has not been checked. I did put my hand near the exhaust
>canister and I could feel puffs of air as the engine ran at normal
>rpm. But now that you mention this, the air pressure felt a little
>low or soft. I'll pull the can and check it today. Manjo

The crankcase has a breather also. See parts 8 & 9. This allows gases
to escape out the crankcase. They can be clogged, but cleaned easily.

Posted by George on April 29, 2008, 11:26 pm
wrote:

>> Manjo wrote:
>> > I have a leaf blower that uses a 5 hp B&S "L" head engine.  ...
>> ...
>> > The leaf blower was starting to run poorly last fall.  This spring it
>> > started right up, but after4-5 seconds after running smoothly at
>> > proper speed, it will slowly loose rpms and finally stop after 15-20
>> > seconds.
>>
>> > I have cleaned the pick-up tube, replaced the carburetor diaphragm
>> > fuel pump along with the gaskets between the carb and the fuel tank,
>> > and the gasket between the carb and the engine.  I've also
>> > disconnected the engine ground wire that normally kills the engine
>> > when the throttle is tuned full off.  But after doing all this the
>> > engine still will not stay running for more than 30 - 40 seconds.
>>
>> > Thanks in advance for any tips, suggestions, or coments.
>>
>> I've not read the rest of the thread but noted you were apparently still
>> searching --
>>
>> Anybody suggested checking the exhaust screen (I'm assuming it has one)
>> for C deposits?  Sounds like it could be clogged w/ buildup which will
>> cause such symptoms...
>>
>> --- Hide quoted text -
>>
>> - Show quoted text -
>
>The exhaust has not been checked. I did put my hand near the exhaust
>canister and I could feel puffs of air as the engine ran at normal
>rpm. But now that you mention this, the air pressure felt a little
>low or soft. I'll pull the can and check it today. Manjo

Really, take a good look at it. I had a string trimmer with similar
start/die problems, that I spent weeks on. Rebuilt the fuel pump, etc.
Then I cleaned the 'spark suppressor' screen, and it's run perfectly
since.

I've since been told that running small engines at less than WOT will
load them up with carbon.

George

Posted by on April 30, 2008, 6:43 am
> wrote:
>
>
>
> >> Manjo wrote:
> >> > I have a leaf blower that uses a 5 hp B&S "L" head engine. ...
> >> ...
> >> > The leaf blower was starting to run poorly last fall. This spring it
> >> > started right up, but after4-5 seconds after running smoothly at
> >> > proper speed, it will slowly loose rpms and finally stop after 15-20
> >> > seconds.
>
> >> > I have cleaned the pick-up tube, replaced the carburetor diaphragm
> >> > fuel pump along with the gaskets between the carb and the fuel tank,
> >> > and the gasket between the carb and the engine. I've also
> >> > disconnected the engine ground wire that normally kills the engine
> >> > when the throttle is tuned full off. But after doing all this the
> >> > engine still will not stay running for more than 30 - 40 seconds.
>
> >> > Thanks in advance for any tips, suggestions, or coments.
>
> >> I've not read the rest of the thread but noted you were apparently still
> >> searching --
>
> >> Anybody suggested checking the exhaust screen (I'm assuming it has one)
> >> for C deposits? Sounds like it could be clogged w/ buildup which will
> >> cause such symptoms...
>
> >> --- Hide quoted text -
>
> >> - Show quoted text -
>
> >The exhaust has not been checked. I did put my hand near the exhaust
> >canister and I could feel puffs of air as the engine ran at normal
> >rpm. But now that you mention this, the air pressure felt a little
> >low or soft. I'll pull the can and check it today. Manjo
>
> Really, take a good look at it. I had a string trimmer with similar
> start/die problems, that I spent weeks on. Rebuilt the fuel pump, etc.
> Then I cleaned the 'spark suppressor' screen, and it's run perfectly
> since.
>
> I've since been told that running small engines at less than WOT will
> load them up with carbon.
>
> George

Geo, this is a 4-cycle, I know...the thread is a little long!

Posted by S. Barker on April 30, 2008, 11:29 am
Those screens need to be drilled out and thrown away. We had EVERY one we
ever bought clog WITH the proper mix and all day WOT use.


steve


>
> Really, take a good look at it. I had a string trimmer with similar
> start/die problems, that I spent weeks on. Rebuilt the fuel pump, etc.
> Then I cleaned the 'spark suppressor' screen, and it's run perfectly
> since.
>
> I've since been told that running small engines at less than WOT will
> load them up with carbon.
>
> George



Page 11 of 11       << first < 1 2 3
Similar ThreadsPosted
WAS: Briggs & Stratton Engine Problem May 2, 2008, 12:37 pm
FINAL WAS: Briggs & Stratton Engine Problem May 20, 2008, 4:45 am
briggs & stratton engine June 13, 2007, 4:23 pm
Briggs & Stratton Engine question. September 21, 2006, 3:07 pm
Go-Kart engine problems (Briggs and Stratton) July 7, 2006, 9:45 pm
Re: old briggs and stratton engine model number March 28, 2007, 9:06 am
Briggs & Stratton 16 HP engine-points actuating rod not moving enough ? November 5, 2005, 7:31 pm
Re: 12.5 HP Briggs and Stratton Engine on Sanapper Riding Mower May 7, 2006, 9:12 pm
19.5HP Briggs & Stratton - Yardman Mower Engine Problems June 15, 2007, 9:24 am
Briggs & Stratton 3.5hp Engine Will Not Start with Air Filter Bolt Installed June 10, 2007, 5:13 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap