Lawn Mower engine cannot get it started!
Lawn Mower engine cannot get it started!
Author
Discussion

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
Need some help here
Bought a second hand petrol mower it worked when I picked it up but have not used it at all in 6 months due to weather ....

So tried to start it.... Not a chance
It has new fuel
Spark plug has been removed~ it looked dark maybe need a new one?
Air filter was filthy but I tried to start it with no air filter in still nothing
There is fuel jn the carb and when I prime it I can see the plug has eventually got wet.
It has oil to correct level
I've turned the blade round with a socket set and its relatively free
It doesn't even splutter

My arm is shot with the amount of pulling I had to try but I gave up.



So I need some help about what to do
Its a 5.5 HP Briggs and Stratton it appears to be a good 10 years old but looks fine no filthy grime.

What could be wrong?

bungz

1,965 posts

149 months

Wednesday 9th April 2014
quotequote all
Does it have spark?

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
bungz said:
Does it have spark?
How can I check that?

bungz

1,965 posts

149 months

Wednesday 9th April 2014
quotequote all
Turn it over with the plug out :P

Lefty

21,261 posts

231 months

Wednesday 9th April 2014
quotequote all
Try cleaning the plug.

Very simple engines, it needs fuel, air and a spark. Fresh fuel?

Troubleatmill

10,210 posts

188 months

Wednesday 9th April 2014
quotequote all
Fuel loses its combustion properties over time.
Remove and replace.

Replace spark plug with a new one.

etc etc....

Mermaid

21,492 posts

200 months

Wednesday 9th April 2014
quotequote all

It is not aHonda wink


I have a couple of B & S appliances and wish i did not. Fuel gelling up is the problem mine suffer an cleaning out the fuel line helps.

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
bungz said:
Turn it over with the plug out :P
I've done that but I cannot see the plug when I'm tugging away...

jamieduff1981

8,092 posts

169 months

Wednesday 9th April 2014
quotequote all
It really irritates me when people call their car a lawnmower... getmecoat

Terminator X

20,546 posts

233 months

Wednesday 9th April 2014
quotequote all
I feel your pain as mine won't start either frown

TX.

Mr2Mike

20,143 posts

284 months

Wednesday 9th April 2014
quotequote all
Welshbeef said:
How can I check that?
Hand in your PH membership. Surely everyone knows you test for HT by putting your finger in the plug cap whilst you spin it over?

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
Mermaid said:
It is not aHonda wink


I have a couple of B & S appliances and wish i did not. Fuel gelling up is the problem mine suffer an cleaning out the fuel line helps.
Good point.

When I grew up we had many petrol mowers mainly Mountfield took ages to start and always striping down etc. Then we (old man) forked out for a 24" Honda ..... Starts first pull every pull even 17 years down the line (and last time I saw it it was still just like new).
Shame I cannot justify £700+ on a Honda mower when I have this one for £50 second hand (though if I cannot get it to start may sell it and buy a new one...)

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
Terminator X said:
I feel your pain as mine won't start either frown

TX.
The amount of tugging I've been doing tonight I know I'll be broken in the morning.

TVR keith

1,901 posts

251 months

Wednesday 9th April 2014
quotequote all
I have been advised by my local garden machinery centre that with the fuel we get (due to the EU) if you leave a small engine with fuel in the carburetor for a few months it forms a solid state within the very small drillings not unlike silicone sealant.
Although they have equipment to clean carbs out this does not solve the problem and the only solution is a new carb.
Note this only really applies with small engines. The way to prevent this occurring is either to run the engine dry of fuel or to run it for a few minutes each month.
This is NOT just my opinion but the words of the workshop foreman who has seen this problem many times

Dog Star

17,556 posts

197 months

Wednesday 9th April 2014
quotequote all
Mermaid said:
It is not aHonda wink


I have a couple of B & S appliances and wish i did not. Fuel gelling up is the problem mine suffer an cleaning out the fuel line helps.
I've had a B&S engined mower since 1996 and it's had minimal maintainance in this time - I'd quite like a posh new Honda or Hayter but it just runs perfectly - started first pull last weekend. Bombproof.

Welshbeef

Original Poster:

49,633 posts

227 months

Wednesday 9th April 2014
quotequote all
TVR keith said:
I have been advised by my local garden machinery centre that with the fuel we get (due to the EU) if you leave a small engine with fuel in the carburetor for a few months it forms a solid state within the very small drillings not unlike silicone sealant.
Although they have equipment to clean carbs out this does not solve the problem and the only solution is a new carb.
Note this only really applies with small engines. The way to prevent this occurring is either to run the engine dry of fuel or to run it for a few minutes each month.
This is NOT just my opinion but the words of the workshop foreman who has seen this problem many times
Not sure of the engine size but its a 5.5bhp


Fuel was left in it over winter.

steveo3002

11,201 posts

203 months

Wednesday 9th April 2014
quotequote all
i leave the fuel in ours over winter with no probs at all

try a new plug and/or some easy start

hasnt got a handle bar or lever you need to hold in to make it run has it?

sunbeam alpine

7,248 posts

217 months

Wednesday 9th April 2014
quotequote all
VERY SIMPLE FIX TO START ALL MOWERS:

1. Get a blowtorch
2. Heat up the exhaust and as much of the motor you can get at (watching out of course for plastic bits and fuel etc.)
3. Pull the cord - it will start.

A warm engine turns over and starts much easier. I've been doing this for years and my moer starts first time every year.

smile

Rosun

141 posts

181 months

Wednesday 9th April 2014
quotequote all
It'll have a rubber housing for the end of the spark plug. Make sure that is mole grip tight with the starter thingy. I always cock up when I leave mine for a few weeks.

Mermaid

21,492 posts

200 months

Wednesday 9th April 2014
quotequote all
sunbeam alpine said:
VERY SIMPLE FIX TO START ALL MOWERS:

1. Get a blowtorch
2. Heat up the exhaust and as much of the motor you can get at (watching out of course for plastic bits and fuel etc.)
3. Pull the cord - it will start.

A warm engine turns over and starts much easier. I've been doing this for years and my moer starts first time every year.

smile
1. Get a hair drier