Best Seller RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38
RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and metal hardware for Zama carburetors.
RB-100 carburetor rebuild kit components including gaskets, diaphragms, and primer bulb for Stihl and Zama carburetors.
RB-100 carburetor rebuild kit components including gaskets, primer bulb, and needle valve for Zama and Stihl equipment.
Infographic showing wide compatibility of RB-100 carburetor rebuild kit with trimmers, tillers, and leaf blowers.
RB-100 carburetor rebuild kit components including gaskets, primer bulb, and metal parts with a close-up view.
RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and needle valve for Zama carburetors.
Mechanic holding a carburetor for RB-100 rebuild kit installation on Stihl and Zama equipment.
Infographic showing RB-100 carburetor rebuild kit components with maintenance tips for Zama C1Q-S series carburetors.
BlueStars RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and small engine parts.
RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and metal hardware for Zama carburetors.
RB-100 carburetor rebuild kit components including gaskets, diaphragms, and primer bulb for Stihl and Zama carburetors.
RB-100 carburetor rebuild kit components including gaskets, primer bulb, and needle valve for Zama and Stihl equipment.
Infographic showing wide compatibility of RB-100 carburetor rebuild kit with trimmers, tillers, and leaf blowers.
RB-100 carburetor rebuild kit components including gaskets, primer bulb, and metal parts with a close-up view.
RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and needle valve for Zama carburetors.
Mechanic holding a carburetor for RB-100 rebuild kit installation on Stihl and Zama equipment.
Infographic showing RB-100 carburetor rebuild kit components with maintenance tips for Zama C1Q-S series carburetors.
BlueStars RB-100 carburetor rebuild kit components including gaskets, diaphragms, primer bulb, and small engine parts.

RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38

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RB-100 Carburetor Rebuild Kit with Primer Bulb

Key Features

  • Comprehensive kit to restore original carburetor performance.
  • Includes all necessary gaskets, diaphragms, and hardware for a standard overhaul.
  • New primer bulb included for reliable fuel priming.
  • Components are manufactured from high-quality paper and rubber for a precise fit and durable seal.

Replaces / Cross-Reference Part Numbers

  • Carburetor Kit: ZAMA RB-100
  • Primer Bulb: Walbro 188-13, 188-13-1; Stens 615-744, 49-027

Compatibility & Fitment

  • Fits Stihl Models:
    • BG45 Blower
    • FS38 Trimmer
    • FS55 Trimmer
    • HS45 Hedge Trimmer
    • MM55 Tiller
    • 4137 Mini Tiller
  • For ZAMA C1Q Series Carburetors:
    • C1Q-S69A
    • C1Q-S70
    • C1Q-S71
    • C1Q-S73
    • C1Q-S79
    • C1Q-S93
    • C1Q-S157

When to Replace

  • Engine is difficult to start or will not start.
  • Engine idles erratically, runs rough, or stalls.
  • Fuel is leaking from the carburetor body.
  • Noticeable loss of power or poor acceleration.
  • Primer bulb is cracked, hazy, or does not return after being pressed.

Installation Tips

  • Thoroughly clean all carburetor components with a dedicated solvent before reassembly.
  • Note the orientation and order of gaskets and diaphragms during disassembly to ensure correct installation.
  • Check and adjust the metering lever height to the manufacturer's specification.
  • After installation, a final adjustment of the idle and mixture screws may be necessary for optimal performance.
  • Inspect fuel lines for cracks or deterioration and replace if needed.
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 1
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 2
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 3
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 4
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 5
RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 6
  • RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 1

    WIDE COMPATIBILITY

    Compatible with many Zama and Stihl Chainsaw models
  • RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 2

    DURABLE MATERIAL

    This part is made of sturdy material which is flexibility and flame-retardant, enhancing durability
  • RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 3

    SAVING SOLUTION

    Enjoy the great feeling when your chainsaw is repaired and works properly like before
  • RB-100 Carburetor Rebuild Kit with Primer Bulb, Fits Zama C1Q-S, Stihl HS45 FS55 FS38 4

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility
THE REPLACEMENT PART THAT KEEP YOUR YARD LOOKING FRESH!

THE REPLACEMENT PART THAT KEEP YOUR YARD LOOKING FRESH!

Compatible Models

Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering

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FAQs

This kit is used with Zama C1Q-S series carburetors and is commonly matched to Stihl equipment including HS45, FS55, FS38, BG45, MM55, and Mini Tiller 4137 EMU applications. Reported compatible Zama carburetor numbers include C1Q-S69, C1Q-S69A, C1Q-S70, C1Q-S71, C1Q-S73, C1Q-S79, C1Q-S79A, C1Q-S80B, C1Q-S80C, C1Q-S80D, C1Q-S93, C1Q-S93A, C1Q-S95, C1Q-S97, C1Q-S97A, C1Q-S97B, C1Q-S157, and C1Q-S157A. Some Stihl models were built with more than one carburetor version, so the best match is by the carburetor number stamped on your Zama carb body.
Yes. In addition to RB-100, cross-referenced kit numbers reported for similar applications include RB-96, RB-99, RB-106, RB-148, RB-150, RB-157, RB-158, RB-161, and GND-92. Confirm by matching your exact carburetor model number before ordering, since overlap can vary by equipment model and production date.
RB-100 kits for these Zama C1Q-S carburetors typically include the metering and pump diaphragms, carburetor gaskets, needle and seat components, small repair hardware, and a primer bulb such as 188-13. Contents can vary slightly by supplier, so it is wise to compare the included pieces to the parts in your existing carburetor before disassembly.
Common symptoms include hard starting, needing excessive choking to stay running, surging at idle, bogging on throttle, fuel not priming correctly, leaking fuel, or a primer bulb that has become cracked or collapsed. On these small 2-cycle applications, stiff diaphragms and worn inlet needle components are common causes after the equipment has sat with old fuel.
The most common causes are ethanol-blended fuel, stale gasoline left in storage, varnish buildup in small passages, and diaphragm material hardening over time. Heat cycling also shortens primer bulb life. If the carburetor body itself is in good condition and the check valves are intact, a rebuild kit is often used to restore fuel metering and priming.
For someone comfortable servicing handheld outdoor power equipment, this is usually a moderate repair. Typical tools include screwdrivers, small picks, needle-nose pliers, a clean bench area, carburetor cleaner, and sometimes Torx drivers depending on the machine. Plan on about 30 to 60 minutes if you are only rebuilding the carburetor, or longer if you also remove covers, throttle linkage, and fuel lines. Keep track of gasket and diaphragm order during disassembly, because reversing them can cause poor running or no fuel draw.
Check the fuel lines for cracks, the tank fuel filter for restriction, the air filter for clogging, and the condition of the spark plug. If the old primer bulb is brittle, replace it at the same time. Also inspect the carburetor body for corrosion, stripped screws, or damage to the metering lever area. If debris came from old fuel lines or the tank, clean the tank and lines first so contaminants do not immediately foul the rebuilt carburetor.