Yard machine mower problem


  #1  
Old 09-14-06, 02:27 PM
L
Member
Thread Starter
Join Date: Sep 2006
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
Yard machine mower problem

I am new to this forum. My mower is a 4.5 hp Yard Machine (model # 11A-414E729 ). It is only two years old, but already developed serious problems. It is diffucult to start, runs with loud noise, and now stops right after start. I took out the spark plug, it was covered with black powder, but dry. Gas consumption has also shot up significantly compared to when it worked well.

I have since taken it apart. The keys for both the blade and flywheel are still intact. I looked at the carberator, but can't tell whether there is anything wrong. The carb interior looks clean. The only thing I noticed was the black coating in the combustion chamber, including the top of the piston. Engine oil was getting dirty, but by no means out of ordinary.

Please give suggestions on where and what to look, and how to fix. Thanks.
 
  #2  
Old 09-14-06, 02:48 PM
G
Member
Join Date: Jun 2006
Location: United States
Posts: 2,296
Upvotes: 0
Received 31 Upvotes on 29 Posts
Sounds like a dirty air filter. Have a nice day. Geo
 
  #3  
Old 09-15-06, 03:14 AM
puey61's Avatar
Member
Join Date: Apr 2004
Location: Upstate New York
Posts: 2,903
Upvotes: 0
Received 2 Upvotes on 2 Posts
Engine ID numbers please!!! History of the mower as well...Service history? Past performance? Minor maintenence done?
 
  #4  
Old 09-16-06, 10:45 AM
L
Member
Thread Starter
Join Date: Sep 2006
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
engine model

model: 10H902
type: 0285 E1
code: 040 10951
 
  #5  
Old 09-16-06, 11:14 AM
L
Member
Thread Starter
Join Date: Sep 2006
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
As I mentioned, it is only 2 years old. So initially it was good, new. I can't pinpoint exactly when it started to have problems, but I do remember twice it stopped hitting something solid. Whether the performance deteriorate right away I can't be sure now. After the symptom developed, I tipped the whole thing to look at the bottom, and had oil flow out from everywhere. It took me a while to get it started, by wiping clean the spark plug. Looking back, it is possible that I might not have put the plug back tight enough.

I will clean the combustion compartment, and change the plug with correct torque. But other than that, I can't see anything wrong. Suggestions will be appreciated.
 
  #6  
Old 09-16-06, 12:37 PM
K
Member
Join Date: Sep 2006
Posts: 12
Upvotes: 0
Received 0 Upvotes on 0 Posts
Give it a tune-up. Change the plug, air filter, fuel filter.
 
  #7  
Old 09-16-06, 05:05 PM
L
Member
Thread Starter
Join Date: Sep 2006
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
where is the fuel filter located?
 
  #8  
Old 09-16-06, 05:13 PM
K
Member
Join Date: Sep 2006
Posts: 12
Upvotes: 0
Received 0 Upvotes on 0 Posts
oops I misread your first post. I thought it was a 14.5 hp rider.
But it's a 4.5 push mower, so no fuel filter on it. Sorry.
Air filter is very important, if it's foam/washable, clean it well, if it's paper, replace it.
 
  #9  
Old 09-16-06, 09:01 PM
L
Member
Thread Starter
Join Date: Sep 2006
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
I will do the filter, spark plug. I will also buy a new carb just to eliminate that possibility. Now can someone tell me the important torque settings on the engine compartment (with the requirement of gaskets, I suppose they need to be pressed quite tight). Thanks.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: