Question about Garden

1 Answer

I have an onan 18 hp twin cylinder (early 90's vintage) that replaced the koehler in my JD 318 tractor, it seems to surge at anything but maximum power i.e. revs up and down all by itself even though throttle set at one spot, anyone have any ideas on how to trouble shoot or what might be wrong?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 69 Answers

Hunting & surging usually is the carb. main fuel jet is dirty, restricted fuel passage, or the governor. Try running some Seafoam carb cleaner through the gas tank first and see if it helps, and don't use ethanol-blended fuel. It absorbs moisture.

Posted on Sep 09, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a charging problem with JD L155c lawn tractor. The battery is new and the voltage to the battery is 12 volts. Not enough to charge the battery. How do I check the ac voltage & what should the...


There are several possible Mowers of the "L" 155 versions.
John Deere LA155 garden tractor lawn mower. These stopped being made in 2010 (they started production in 2009, and so enjoyed a run of 2 years on the assembly lines). The JD LA155 is powered by a Briggs and Stratton 2 cylinder, V twin engine. This engine is 0.656 liters (40 cubic inches) in size and produces 22 hp.

1998 - 2001 LT Series
John Deere LT155 Engine: Kohler 1-cyl gasoline

2006-2006 L155c, This series was produced only in 2006.
Briggs & Stratton gasoline, 2-cylinder air-cooled, 724 cc [44.2ci ], 25 hp

Model 445777-0168E Code 021125YC, these are the engine numbers from a 25 hp twin cylinder, B&S.

Notes on these engines from parts supplier ereplacementparts.com:
Briggs and Stratton 445777-0231-E1 Engine: The proper flywheel part number and/or the alternator magnet size will determine the alternator type or output.

This 25 hp engine has 3 different possible alternators, standard circuit, dual circuit, tri-circuit. I would need the exact engine model numbers in order to precisely answer your question. Often mower models have choices for the engine they come with. In this situation the engine model is more important than the model of the mower.

Testing an alternator is fairly simple; all you need is a multimeter for testing.
  1. Disconnect connector from stator.
  2. Set multimeter for AC volts.
  3. Attach RED test lead to either pin on stator side of stator connector. (On single wire leads, attach RED test lead to the single pin.)
  4. On two wire lead models, attach Black test lead to the other pin. On single wire stator connectors attach the Black test lead to the engine ground.
  5. Prepare the lawn tractor for engine start (set parking brake, blade off, etc). Start engine and run at full throttle.
  6. Check output. Output for engines of this general size run in the 30 to 50 volt range. For instance the B&S V twin 22 hp AC output at full throttle is 30 Volts minimum. Other B&S on these machines spec 40 Volt minimum.
If your voltages are not in the manufacturers range, or non-existent, your stator is partly shorted or completely burnt out (open circuit). Either way you have to replace it.

A. In the picture is a single lead stator connector.
B. In the picture is a two wire stator connector.
25576096-4l1urzt5ysxbk0em2umcwdes-5-3.jpg

Mar 15, 2015 | Garden

1 Answer

Can I swap the motor from a Husqvarna YTH 180 and put it in a Husqvarna YTH 1848 HP?


The 1848 uses an 18 HP Twin cylinder engine. Mine is a Kawasaki but a similar 18 - 21 HP Kholer will also work. Can't see a problem

Nov 06, 2014 | Husqvarna Garden

1 Answer

What is the compression lbs for a 18 hp brigg/stratton intek engine


Not sure where to get compression pounds for this, but let me refer you to the Briggs website for detailed product specs and power curves.
Intek can be twin or single sylinder.

For Twin....
http://www.briggsandstratton.com/us/en/engines/rider-mower-engines/intek-series-v-twin

For single....the are in 1/2 HP ratings but the link is below....
http://www.briggsandstratton.com/us/en/engines/rider-mower-engines/intek-with-xrd-single-cylinder

If further detail is required, I will need the model type and trim found on the valve cover.

Aug 18, 2014 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Can you give me a ballpark figure on replacing a head gasket on a older Craftsman riding lawn mower...


there are many variables, since you didn't give any specifics. if it is an older, single cylinder, L-head engine, labor would be roughly 1/2 hour; if an older twin, L-head, about 1 hour; if it's a kohler, add about 1/2 hour; if it's a single, OHV, about 1 hour; if a twin OHV, 1 1/2 hours; if a kohler, add 1/2 hour. each shop has it's own labor rate. flat rate manuals will vary and are not realistic when dealing with old, possibly rusted or frozen bolts, which will increase the cost of repair. a new head gasket will usually cost between $5 to $30, depending on which engine you have. {some older craftsmans had a briggs laid sideways or an onan. these will require a lot more work and the labor would be higher]

Aug 31, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

2 Answers

I have trouble starting my 316 JD tractor. When I


I do not have answer I will like to have an answer for my 316 JD no power no lights on dash battery new and was running shot off and wont stared again.Thank You

Aug 15, 2009 | John Deere New Tractor Starter w/ 317...

1 Answer

Is there a way to test the ignition condensor on an 18 hp onan engine in a 318 John deere lawn tractor.


not worthtesting just replace it if its suspect as they are only cheap to buy & easy to fit

Jul 25, 2009 | Garden

2 Answers

Briggs & Stratton 18 hp v-twin engine surges while running.


I put a new carburator kit in a Briggs & Stratton 18 HP Twin. But did not replaced the needle nor the new seat that came with kit, because I did not know how to remove it and did not to damage it. now the gas over flows

Jul 12, 2009 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

My 18 hp twin cylinder Briggs and Strat. Craftsman lawn tractor moter surges and dies. I cleaned the carbuetor body and the goveror linkage. No problems found. I rebuilt the fuel pump rubber and...


Hi..my name is Keith...and the engine is running too lean..and with you choking it..it richens the mixture..so its a carb problem..and that could be several things..1)..is the main metering jet needle on the bottom of the float bowl needs to be turn out until the engine runs smooth..or 2) the carb to engine gasket is bad and its sucking air..or 3)..the passage ways in the carb is stopped up..i hope one of these will help..if not please write me back

Jul 10, 2009 | Garden

Not finding what you are looking for?
Garden Logo

Related Topics:

470 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garden Experts

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

roeb

Level 3 Expert

623 Answers

john h

Level 3 Expert

12744 Answers

Are you a Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...