BXParts 939401 920320 920406 920327

BXParts Carburetor Instruction Manual

For Ariens SNO-Tek Snowblowers (Models 939401, 920320, 920406, 920327)

Introduzione

This manual provides essential instructions for the installation, operation, and maintenance of your new BXParts Carburetor. This carburetor is designed as a replacement part for specific Ariens SNO-Tek 20" and 22" snowblowers equipped with an AX 136cc engine. Please read this manual thoroughly before attempting any installation or maintenance to ensure proper function and safety.

Cosa c'è nella scatola

Your BXParts Carburetor package includes the following components:

  • 1x Carburetor
  • 3 guarnizioni
  • 2x Fuel Filters
  • 1x Primer Bulb
  • 1x Fuel Line

Compatibilità

This BXParts Carburetor is specifically designed to replace the original carburetor in the following Ariens SNO-Tek snowblower models:

  • Ariens SNO-Tek 939401 (20" Snowblower with AX 136cc Engine)
  • Ariens SNO-Tek 920320 (22" Snowblower with AX 136cc Engine)
  • Ariens SNO-Tek 920406 (22" Snowblower with AX 136cc Engine)
  • Ariens SNO-Tek 920327 (20" Snowblower with AX 136cc Engine)

Before installation, carefully compare the appearance and dimensions of this carburetor with your original part to ensure a correct match. Discrepancies may lead to improper fit or function.

Informazioni sulla sicurezza

AVVERTIMENTO: Working with fuel systems and internal combustion engines can be hazardous. Always follow these safety precautions:

  • Scollegare la candela: Before performing any service, always disconnect the spark plug wire to prevent accidental engine starting.
  • Lavorare in un'area ben ventilata: Fuel fumes are flammable and hazardous.
  • Nessuna fiamma libera: Keep all ignition sources, including sparks, open flames, and smoking materials, away from the work area.
  • Indossare dispositivi di protezione: Use safety glasses and gloves.
  • Handle Fuel Carefully: Drain fuel into an approved container. Clean up any spills immediately.
  • Calore del motore: Allow the engine to cool completely before servicing to avoid burns.
  • Assistenza professionale: In caso di dubbi su un passaggio, consultare un tecnico qualificato.

Configurazione e installazione

The following steps provide a general guide for carburetor replacement. Always refer to your snowblower's original service manual for specific instructions and torque specifications.

  1. Preparare lo spazzaneve:
    • Assicurati che il motore sia freddo.
    • Scollegare il cavo della candela.
    • Chiudere la valvola di alimentazione del carburante (se in dotazione).
    • Svuotare il serbatoio del carburante in un contenitore omologato.
  2. Accedi al carburatore:
    • Rimuovere eventuali coperchi del motore, l'alloggiamento del filtro dell'aria o altri componenti che ostruiscono l'accesso al carburatore.
  3. Scollegare i componenti:
    • Scollegare con cautela i tubi del carburante, il leveraggio dell'acceleratore e il leveraggio dello starter dal vecchio carburatore. Annotare la loro posizione per il rimontaggio.
    • Disconnect the primer bulb line if it connects directly to the carburetor.
  4. Rimuovere il vecchio carburatore:
    • Unbolt the old carburetor from the engine manifold. Be mindful of any gaskets.
  5. Installare il nuovo carburatore:
    • Ensure all mating surfaces are clean.
    • Place new gaskets (provided) between the carburetor and the engine manifold, and between the carburetor and the air filter housing (if applicable).
    • Mount the new BXParts Carburetor, ensuring it is properly seated. Tighten mounting bolts according to your snowblower's manual.
  6. Ricollegare i componenti:
    • Reconnect the throttle linkage and choke linkage to the new carburetor. Verify smooth operation.
    • Install the new fuel line and fuel filters (provided). Connect the fuel lines to the carburetor and fuel tank.
    • Install the new primer bulb (provided) and connect its line.
  7. Controlli finali:
    • Controllare attentamente tutti i collegamenti per verificarne la tenuta e il corretto instradamento.
    • Ensure no tools or debris are left in the engine area.
BXParts Carburetor side view

Immagine 1: Lato view of the BXParts Carburetor, showing fuel inlet and linkage points.

BXParts Carburetor with intake measurements

Immagine 2: anteriore view of the carburetor with key dimensions: 40mm (1.6 in.) mounting hole spacing and 8.4mm (0.33 in.) fuel line barb diameter.

Istruzioni per l'uso (post-installazione)

After successful installation of the carburetor, follow these steps to prepare your snowblower for operation:

  1. Riempire il serbatoio del carburante: Fill the fuel tank with fresh, clean gasoline suitable for your snowblower's engine.
  2. Aprire la valvola del carburante: If your snowblower has a fuel shut-off valve, open it.
  3. Adescare il carburatore: Premere più volte la pompetta di adescamento (in genere 3-5 volte, o finché il carburante non è visibile nella pompetta) per aspirare il carburante nel carburatore.
  4. Ricollegare la candela: Ricollegare il filo della candela.
  5. Avviare il motore: Follow your snowblower's manufacturer instructions for starting the engine (e.g., set choke, throttle position).
  6. Riscaldamento: Allow the engine to warm up for a few minutes before operating under load.

If the engine does not start or runs poorly, refer to the Troubleshooting section.

Manutenzione

Proper maintenance of your carburetor and fuel system ensures reliable performance and extends the life of your snowblower.

  • Qualità del carburante: Always use fresh, clean, stabilized gasoline. Stale or contaminated fuel is a primary cause of carburetor issues.
  • Sostituzione del filtro del carburante: Regularly inspect and replace the fuel filter(s) as recommended by your snowblower's manufacturer, or if they appear dirty.
  • Primer Bulb Inspection: Check the primer bulb and fuel lines for cracks, leaks, or hardening. Replace as needed.
  • Pulizia del carburatore: If the carburetor becomes clogged due to old fuel, it may require cleaning. This is an advanced procedure and may require specialized tools and knowledge. Consider professional service if you are not comfortable performing this task.
  • Magazzinaggio: Before long-term storage, drain the fuel system or use a fuel stabilizer to prevent fuel degradation and carburetor gumming.

Risoluzione dei problemi

If your snowblower experiences issues after carburetor installation, consider the following common problems and solutions:

ProblemaPossibile causaSoluzione
Il motore non si avviaNo fuel reaching carburetor, incorrect choke/throttle setting, spark plug issue, clogged fuel filter.Check fuel level, ensure fuel valve is open. Verify primer bulb operation. Check spark plug for fouling or damage. Replace fuel filter. Ensure choke and throttle are set correctly for starting.
Il motore funziona in modo irregolare o si spegneImproper fuel mixture, vacuum leak, clogged fuel filter, old/stale fuel.Ensure all carburetor mounting bolts are tight and gaskets are sealed. Replace fuel with fresh, stabilized gasoline. Check fuel lines for cracks.
Perdita di carburanteLoose fuel line connection, damaged gasket, cracked fuel line or primer bulb.Inspect all fuel line connections and tighten. Replace any damaged gaskets, fuel lines, or primer bulb.
Primer bulb not workingCracked bulb, disconnected line, clogged line.Inspect primer bulb for cracks and replace if necessary. Check primer lines for proper connection and blockages.

If these steps do not resolve the issue, it is recommended to consult a qualified small engine mechanic.

Specifiche

Key specifications for the BXParts Carburetor:

  • Produttore: BXParts
  • Modello: Carburetor (Replacement for Ariens SNO-Tek AX 136cc Engine)
  • Peso dell'articolo: Circa 8 once
  • Dimensioni della confezione: Circa 6 x 4 x 4 pollici
  • Codici articolo del produttore: Replaces 939401, 920320, 920406, 920327
  • Fuel Line Barb Diameter: 8.4 mm (0.33 pollici)
  • Distanza tra i fori di montaggio: 40 mm (1.6 pollici)
BXParts Carburetor other side view

Immagine 3: Un altro lato view of the BXParts Carburetor, showing the primer bulb connection point.

BXParts Carburetor with output measurements

Immagine 4: posteriore view of the carburetor with key dimensions: 40mm (1.6 in.) mounting hole spacing and 19mm (0.74 in.) bore diameter.

Garanzia e supporto

For information regarding warranty coverage or technical support for your BXParts Carburetor, please contact the manufacturer directly through their official channels. Keep your purchase receipt as proof of purchase.

© 2024 BXParts. All rights reserved. This manual is for informational purposes only.