- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
Kit-pump/choke Dia 391681
- Manufactured by:
- Briggs and Stratton
- ERP Number:
- ERP8966318
- Part Number:
- 391681
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Product Description
?This genuine manufacturer approved replacement part is designed for use with lawn and garden equipment. Fits 3.5 and 4 gross HP vertical crankshaft engines (pulsa-jet carburetors). This item provides an air tight seal for the carburetor. Includes a carburetor diaphragm and a metal spring. To complete this repair you would need wrench. • Disconnect spark plug • Remove muffler • Replace diaphragm and spring • Re-assemble and test the unit
Frequently Purchased Together
?Troubleshooting
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- Lawn Boy
- Engine
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Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
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Very bad engine misfire, could not be corrected with needle valve adjustment or carb cleaning
Richard from Chester Springs, Pennsylvania
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers, Socket set
2. Saw very slight wrinkle close to spring on fuel pump
3. Replaced membrane, pump spring and breather grommet. Likely only the membrane was worn.
4. Reinstalled carburetor and engine started right up and ran like new!
The engine was hard starting and the RPMGÇÖs surging up and down.
Walter from Santa Maria, California
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Screw drivers, Socket set
Lawn Mower wouldn\'t start
David from Arlington, Texas
- Difficulty Level:
- Easy
- Total Repair Time:
- 1- 2 hours
- Tools:
- Nutdriver, Screw drivers, Socket set, Wrench set
Was not getting gas to the carburetor
Robert from Manahawkin, New Jersey
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Nutdriver, Pliers, Screw drivers, Socket set, Wrench (Adjustable)
Removed intake tubes
Removed old gasket/diaphragm
Removed needle valve
Cleaned carb with carb cleaner making sure all holes and crevices were clean use a small brush to help
Replace all parts with new parts
Put back together
Started perfectly
Motor would only run a few seconds then stall
ROBERT from CARO, Michigan
Very hard to start and ran very rough consuming much more gas than normal
Robert from AUBURN HILLS, Michigan
- Difficulty Level:
- Easy
- Total Repair Time:
- 1- 2 hours
- Tools:
- Screw drivers, Socket set
- Parts Used:
- 391681
2. Removed carburetor air cleaner.
3. Removed carburetor from engine
4. Disassembled carburetor, cleaned all parts.
5. Assembled carburetor using new pump diaphragm.
6. Tested. Engine ran like new after repair.
Total time 2 hours
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Model Cross Reference
Manufacturer Part Number: 391681
| Brand | Model Number | Description |
|---|---|---|
| Lawn Boy | 0363 | Lawn Mower - Lawn Boy Lawn Mower Model 0363 Parts |
| Briggs and Stratton | 092901-0229-99 | Engine - Engine |
| Briggs and Stratton | 092901-0265-99 | Engine - Engine |
| Briggs and Stratton | 092901-0351-99 | Engine - Engine |
| Briggs and Stratton | 092901-0419-99 | Engine - Engine |
| Briggs and Stratton | 092901-0771-99 | Engine - Engine |
| Briggs and Stratton | 092901-0928-99 | Engine - Engine |
| Briggs and Stratton | 092901-1099-99 | Engine - Engine |
| Briggs and Stratton | 092902 | Engine - Briggs & Stratton Small Engine Model 092902/0981-99 (092902/098199, 092902/0981 99) Parts |
| Briggs and Stratton | 092902-0015-99 | Engine - Engine |
| Briggs and Stratton | 092902-0016-99 | Engine - Engine |
| Briggs and Stratton | 092902-0017-99 | Engine - Engine |
| Briggs and Stratton | 092902-0018-99 | Engine - Engine |
| Briggs and Stratton | 092902-0019-99 | Engine - Engine |
| Briggs and Stratton | 092902-0020-99 | Engine - Engine |
| Briggs and Stratton | 092902-0021-99 | Engine - Engine |
| Briggs and Stratton | 092902-0022-99 | Engine - Engine |
| Briggs and Stratton | 092902-0023-99 | Engine - Engine |
| Briggs and Stratton | 092902-0024-99 | Engine - Engine |
| Briggs and Stratton | 092902-0028-99 | Engine - Engine |
| Briggs and Stratton | 092902-0029-99 | Engine - Engine |
| Briggs and Stratton | 092902-0090-99 | Engine - Engine |
| Briggs and Stratton | 092902-0101-99 | Engine - Engine |
| Briggs and Stratton | 092902-0115-99 | Engine - Engine |
| Briggs and Stratton | 092902-0116-99 | Engine - Engine |
| Briggs and Stratton | 092902-0117-99 | Engine - Engine |
| Briggs and Stratton | 092902-0118-99 | Engine - Engine |
| Briggs and Stratton | 092902-0132-99 | Engine - Engine |
| Briggs and Stratton | 092902-0133-99 | Engine - Engine |
| Briggs and Stratton | 092902-0134-99 | Engine - Engine |
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