Hi

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

It started doing this at the last cut of autumn, (hence its not an
stale fuel problem). I added a little redex to the fuel but it made no
difference.

Just tried it out now and its still suffering the same problem.

Any ideas, the engine is a Honda GCV 135E.


TIA

Paul

On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Thomas Prufer

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

On Fri, 13 Feb 2004 10:36:52 +0100, Thomas Prufer
wrote:

On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Thomas Prufer
Sounds reasonable, now I have got to find out how to unclog it, i'll
think I will have to take it to bits and try and figure out how it
works.

Thanks

Paul

On Fri, 13 Feb 2004 12:34:20 GMT, Jaques d'Alltrades
wrote:

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

I tried that, running without the filler cap makes no difference.

Paul

On Fri, 13 Feb 2004 17:58:33 +0000, Curiosity
wrote:

Sounds reasonable, now I have got to find out how to unclog it, i'll
think I will have to take it to bits and try and figure out how it
works.

The link
http://routbort.neuro.duke.edu/repai...R/F_lmfaq.html will be
useful, in a general sort of way.

I haven't checked it in a while, so if it's broken, google for :
"Sci.Electronics.Repair FAQ: Notes on the Troubleshooting and Repair of
Small Gasoline Engines and Rotary Lawn Mowers", which will tell you
more, particularly how to clean the jets in the carburetor (which would
be my second guess as to the cause -- "crud in there somewhere").

Thomas Prufer

On Sat, 14 Feb 2004 19:05:36 +0100, Thomas Prufer
wrote:

On Fri, 13 Feb 2004 17:58:33 +0000, Curiosity
wrote:

Sounds reasonable, now I have got to find out how to unclog it, i'll
think I will have to take it to bits and try and figure out how it
works.

The link
http://routbort.neuro.duke.edu/repai...R/F_lmfaq.html will be
useful, in a general sort of way.

I haven't checked it in a while, so if it's broken, google for :
"Sci.Electronics.Repair FAQ: Notes on the Troubleshooting and Repair of
Small Gasoline Engines and Rotary Lawn Mowers", which will tell you
more, particularly how to clean the jets in the carburetor (which would
be my second guess as to the cause -- "crud in there somewhere").

Thomas Prufer

Thanks Thomas, I will google for the suggested FAQ.

Paul

Curiosity wrote:

On Fri, 13 Feb 2004 12:34:20 GMT, Jaques d'Alltrades
wrote:

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

I tried that, running without the filler cap makes no difference.

That'll be why the fuel line or filter is clogged, then.
--
Nick Wagg

Curiosity wrote:

On Fri, 13 Feb 2004 12:34:20 GMT, Jaques d'Alltrades
wrote:

The message
from Thomas Prufer contains these words:
On Fri, 13 Feb 2004 09:29:52 +0000, Curiosity
wrote:

My petrol lawnmower starts almost first time but it only runs for
between 30 and 40 seconds before it conks out, it won't restart
immediately but after a few minutes it will start and run for 40 about
seconds again.

Fuel line/filter clogged?

Possibly, but more likely to be a blocked vent in the filler cap.

I tried that, running without the filler cap makes no difference.

That'll be why the fuel line or filter is clogged, then.
--
Nick Wagg