Starter on Yardman lawn tractor.
#1
08-07-13, 09:26 AM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Starter on Yardman lawn tractor.
I have a Yardman lawn tractor I bought about 10 years ago, it runs good, but is had to start. I would barely turn over so I bought a new battery and it still does it. The battery tests good, I put new cables and solenoid on and it still continues to turn over slowly. I took the starter apart and the brushes are good cleaned it all up , but it still did not start. I'm sure it's the starter since it's getting 12 volts to it when I try to start it. Looking for help and/or advise.
Thanks,
Bob
Thanks,
Bob
#2
08-07-13, 10:45 AM
Does it turn over any different with the plug out? If so it could be a compression release or a valve adjustment problem. Valves usually work with a .005 clearance.
If that is in good shape, and there is still a big difference in with/without plug, the flywheel key could be sheared, creating a timing problem.
If that is in good shape, and there is still a big difference in with/without plug, the flywheel key could be sheared, creating a timing problem.
#3
08-07-13, 11:52 AM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
I never thought of the flywheel key. If the key was sheared it should run rough when it does run. It runs good when I do get it started. i haven't pulled the plug yet and turned it over, I'll have to do that tonight.
Bob
Bob
#5
08-07-13, 12:50 PM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
#7
08-07-13, 02:24 PM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Marbobj,
Thanks for the info. I'll have to dig my manuals for that engine and see if I can find any specs on the valves. I've had it over 10 years and used it hard at times, so I could use a little tuneup.
Bob
Thanks for the info. I'll have to dig my manuals for that engine and see if I can find any specs on the valves. I've had it over 10 years and used it hard at times, so I could use a little tuneup.
Bob
#10
08-07-13, 08:27 PM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Yup adjusted the valves and it runs like new. Was able to find the spects in my owners manual.
Thanks for all the help.
Bob
Thanks for all the help.
Bob
#11
08-09-13, 10:14 AM
Join Date: Aug 2008
Location: USA
Posts: 34
Upvotes: 0
Received 0 Upvotes
on
0 Posts
When I adjusted my valves I did it based on what I saw on YouTube. They showed when adjusting the exhaust valve that the intake valve was compress all the way. I looked at some YouTube videos last night and found a video of adjusting the valves and they did it with the piston at top dead center. Which way is correct or does it matter.
Bob
Bob
#12
08-09-13, 10:40 AM
Forum Topic Moderator
Top dead center, then continue to rotate until the piston has moved ~1/4 inch down on the power stroke. This is where you adjust the valves.
