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9903-0 ((Rev 0)(1994-12)) Generac Generator - Overview

Sections of the 9903-0

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Carb 410hs – Part Number: 0A4600
Carb 410hs
PartSelect #: PS9873484
Manufacturer #: 0A4600
Enhance the efficiency and performance of your Generac equipment with this high-quality Carburetor. Expertly designed by Generac, this part ensures smooth and stable fuel supply to your machine's engi...
$133.31
  In Stock
Order now and your part arrives by May 2
Pre-cleaner,airfltr – Part Number: G081646
Pre-cleaner,airfltr
PartSelect #: PS11923829
Manufacturer #: G081646
This is an original Generac replacement part manufactured for use with portable generators. The foam pre-filter traps dirt along with the main air filter to prevent contamination inside the engine. Th...
$11.14
  In Stock
Order now and your part arrives by May 2
Screw – Part Number: 690341
Screw
PartSelect #: PS9294409
Manufacturer #: 690341
$8.66
  In Stock
Order now and your part arrives by May 2
Hose Breather Gh410 Engines – Part Number: 0D7199A
Hose Breather Gh410 Engines
PartSelect #: PS9873851
Manufacturer #: 0D7199A
This authentic manufacturer-sourced component is constructed of flexible plastic, and is made for use with several portable generators. The breather hose (gh410 engines) is secured onto the crankcase,...
$34.24
  On Order
Rod Governor Cntrl – Part Number: G072735
Rod Governor Cntrl
PartSelect #: PS11923780
Manufacturer #: G072735
$11.80
  In Stock
Order now and your part arrives by May 2
Element; Air Filter – Part Number: 73111
Element; Air Filter
PartSelect #: PS16716650
Manufacturer #: 73111
  No Longer Available
Nut – Part Number: 690279
Nut
PartSelect #: PS9062883
Manufacturer #: 690279
$6.40
  Special Order
Screw – Part Number: 690369
Screw
PartSelect #: PS9063709
Manufacturer #: 690369
$8.68
  Special Order
Intake Adaptor Gasket – Part Number: 91039
Intake Adaptor Gasket
PartSelect #: PS16997745
Manufacturer #: 91039
$4.08
  Special Order
Screw-Cap Hex. Hd – Part Number: 92035
Screw-Cap Hex. Hd
PartSelect #: PS9160689
Manufacturer #: 92035
$21.36
  Special Order
Pin, Roll M4 X 10 – Part Number: 81917
Pin, Roll M4 X 10
PartSelect #: PS10016778
Manufacturer #: 81917
$6.40
  Special Order
Governor Anti - Lash Spring – Part Number: 72789
Governor Anti - Lash Spring
PartSelect #: PS16994429
Manufacturer #: 72789
$20.50
  Special Order

Questions And Answers for 9903-0

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Carberator gummed up from sitting in storage. Fuel gone bad in the tank
With a 12-in-one nut screwdriver I removed the two bolts holding the breather cover and air filter. Then I used about a 9/16 deep socket ratchet to remove the nuts holding the breather housing to the carburetor assembly studs. A pair of needle nose pliers was used to disconnect the throttle then I wriggled the breather cover away from the carburetor so I could get to the fuel line. I managed to pull the fuel line off the carburetor and from the shut-off valve at the tank. The carburetor slid freely and easily off the carburetor studs and I was careful not to damage the carburetor gasket since none came with the new carburetor. I used a single edge razor blade to free the gasket from the old carburetor. A very small amount of silicone lube was used on the gasket and then I sandwiched the old gasket between the carburetor intake and the new carburetor and attached the throttle connection. Before beginning the reassembly I unscrewed the shut-off valve from the tank and used a funnel to drain the very old fuel into a 5-gallon bucket. I made sure the valve was clean by spraying carburetor cleaner through it and did the same with the old fuel line, making sure everything was clear of any obstruction. Then replace the breather assembly back over the carburetor studs, snugged the nuts back on and then replaced the air filter and cover. I re-attached the fuel line to the fuel valve and the carburetor, added a half gallon of clean fresh fuel and was ready for a smoke check. Pulled the starter rope three times with the choke full on, then turned to half-choke and the puppy started right off. I then turned the choke completely off and the engined purred along. I then exercised the generator by plugging in and running a number of power tools for about 15 minutes. Followed standard shut off procedures and the generator is ready for use. Saving the old carburetor to be cleaned and held on reserve for the future. Might want to have another gasket handy or some gasket material should it have to be replaced in the future.
Parts Used:
Carb 410hs
  • Robert from BATON ROUGE, LA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Pliers, Socket set
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