| T O P I C R E V I E W |
| riccbhard |
Posted - Mar 30 2006 : 7:42:05 PM
I found a lawnmower that appears to be in good shape. Found it out in the garbage on my street. The motor is a Briggs & Stratton, Model # 98902, Type #: 2099. 3.75HP. The blade appears like it's brand new, still shiny. There's hardly any rust. The only things that I could visually see wrong was that the air cleaner housing was loose and there was a spring popped off on one side of the throttle assembly, and the spring on the choke has also come off on one side (I need something to pull that, very strong, spring back to where it's supposed to be clipped.).
The cable to the lever on the handle seems stiff and has a bend in one place.
I just wanted to show these videos that I took to see if I put the spring in the right place on the throttle, and to show where the spring is hanging on the choke
EDIT: The spring that was loose was the long brownish (rusted) one in the middle. Is it in the right place? I just guessed where it should go...
(MPEG1 format)
Throttle: http://media.putfile.com/Lawnmower1
Choke: http://media.putfile.com/Lawnmower2
Edited by - riccbhard on Mar 30 2006 7:43:12 PM |
| 5 L A T E S T R E P L I E S (Newest First) |
| Aaron Cake |
Posted - Apr 13 2006 : 10:09:00 AM
The coverner is the lever that extends under the blower housing.
The governor connects to the throttle plate via a small rod. The outer throttle lever (the one that the throttle cable from the handle connects to) then connects to the governor lever via a calibrated spring.
If you visit your local small engine shop, they should be able to sell you the Briggs and Stratton service manual. It's an invaluable piece of literature.
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| riccbhard |
Posted - Apr 12 2006 : 5:46:13 PM
Is the governer that little lever that goes up under the engine cover? If so, it's connected to the same spring as the throttle plate.
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| Aaron Cake |
Posted - Apr 12 2006 : 10:12:14 AM
The muffler could be easy or hard depeneding on the rust level. They generally just unscrew but if it gets rusted too much the threads will break off in the hole.
You also want to sort out that throttle connection. Running the engine as it is now is unsafe because the governor is defeated.
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| riccbhard |
Posted - Apr 11 2006 : 7:47:15 PM
I got it running. I replaced the fuel primer button & spark plug, took out the old nasty yellow gas, put in new gas, sprayed in some Thrust Quick Start, pulled the string and it fired right up.
EDIT - And sanded the rust off of the flywheel's contacts for the magneto/coil unit.
My concern is that it sounds louder than it should. Maybe I'm just not used to hearing one run. How hard is it to replace the muffler?
Edited by - riccbhard on Apr 11 2006 8:49:28 PM |
| Aaron Cake |
Posted - Mar 31 2006 : 09:34:19 AM
The throttle is not even close. :)
I'm going from memory here, but that looks to be similar to the Pulsa-Jet carbs from years ago.
The plastic lever that extends from the blower/starter housing is the governor vane. The spring from the throttle lever (in the video, the bottom most lever) extends to that. The actual throttle butterfly lever is in the middle on the carb attached directly to the throttle plate. The rod from the governor then goes to the throttle butterfly. So the lever on the outside of the engine pulls the spring which connects to the governor, and the governor connects to the actual throttle plate by the rod. That spring is specific to that model of engine and calibrated for the governed speed of the engine.
There seems to be an extra silver spring on your engine that should be removed.
This carb does not have a manual choke. The lever on the other side of the engine is likely the flywheel break and ignition cut.
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