Products Description
HUS61 Chainsaw Carburetor Rebuild Kit | Gasket & Diaphragm Repair Set for Husqvarna 61 Professional Chainsaws
Precision-Cut Metering Diaphragm, Pump Gasket, Carb Mount Gasket & Body Seals for Walbro HDA / Tillotson HS Series Carburetors
HUS61 Chain saw carburetor repair kit
This carburetor repair kit contains the complete set of gaskets and diaphragms required to rebuild the Walbro HDA or Tillotson HS-series carburetor fitted to the Husqvarna 61 - a 61 cc professional chainsaw that remains in active service across forestry, arboriculture, and firewood operations decades after its production run. Ethanol-blended fuels, seasonal storage, and vibration fatigue degrade rubber diaphragms and paper gaskets over time, causing hard starting, idle instability, bogging under throttle, and fuel leakage. Replacing the full set of soft components restores the carburetor to factory fuel-metering performance without the cost of a complete carburetor replacement.Each component is precision die-cut to match the OEM port and bolt-hole pattern. The kit includes the critical metering diaphragm - the pump that draws fuel from the tank into the metering chamber - along with the pump gasket, carburetor mounting gasket, and body seals.
Technical Profiles & Materials
Metering Diaphragm：
The metering diaphragm is the heart of a diaphragm carburetor. Engine vacuum pulses act on this flexible membrane, which oscillates to pump fuel from the tank through the inlet needle into the metering chamber. A stiff or micro-cracked diaphragm loses pumping amplitude - fuel delivery becomes erratic, the engine starves under load, and the saw bogs or stalls mid-cut. The diaphragm in this kit uses ethanol-resistant elastomer with a reinforced fabric core, maintaining flexural consistency across millions of pulse cycles.
Pump Gasket & Carb Mount Gasket：
The pump gasket seals the pulse chamber and fuel passages between the carburetor body layers. The carburetor mounting gasket seals the carb-to-cylinder intake flange - a vacuum leak here admits unmetered air, leans out the mixture, and causes surging idle and piston-scoring lean runs at full throttle. Both are cut from high-density fiber gasket material that compresses to seal minor casting irregularities without extruding or splitting under bolt torque.
Technical Specifications
| ITEM | DETAILS |
| Type | Carburetor Repair Kit - Gasket & Diaphragm Set |
| Application | Husqvarna 61 chainsaw, Walbro HDA / Tillotson HS-series diaphragm carburetors / Husqvarna |
| Code | 0109120 |
| Material | Ethanol-resistant elastomer diaphragm (fluorosilicone/NBR), high-density fiber gaskets with fuel-resistant binder |
| Details explanation | Complete soft-part kit: metering diaphragm, pump gasket, carb mount gasket, body seals. Die-cut to OEM pattern. Ethanol-blend (E10) compatible. |
| Brand Name | SeaSummer |
| Operating Temp | −30 ~ +120 °C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Vintage Saw Restoration & Collectors
The Husqvarna 61 has a dedicated following among chainsaw collectors and weekend firewood cutters who maintain older equipment specifically for its build quality, parts availability, and mechanical simplicity compared to auto-tune saws. A comprehensive gasket and diaphragm kit with ethanol-resistant materials is a critical enabler for keeping these machines running on modern pump fuel - addressing the single most common cause of carburetor failure in stored or seasonally used saws.
Walbro HDA & Tillotson HS Carburetor Rebuilds
The kit's gaskets and diaphragms fit Walbro HDA and Tillotson HS carburetors - two of the most common diaphragm carburetor families in the 50–80 cc chainsaw class. Beyond the Husqvarna 61, these carburetors appear on Jonsered, Partner, and McCulloch saws sharing the same engine architecture. For small-engine repair shops servicing mixed-brand chainsaw fleets, this kit covers multiple carburetor variants where the soft-part dimensions are common across brands.
Husqvarna 61 Professional Chainsaws
The HUS61 (61 cc, 3.7 kW) was Husqvarna's mid-range professional saw for two decades, widely used in commercial forestry, arborist tree work, and firewood production. Its Walbro or Tillotson diaphragm carburetor is reliable but aging - surviving saws now show diaphragm hardening from decades of fuel exposure. A carb rebuild with this kit restores cold-start ease, steady idle, and full-throttle power delivery, extending a proven machine's working life at a fraction of the cost of a modern replacement saw.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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