Description
Overview:
This Idle Adjustment Screw is a genuine Husqvarna replacement for maintaining precise idle speed on compatible chainsaws. Built from durable metal with a fine adjustment thread, it sets the throttle stop on the carburettor so the engine idles smoothly without the chain creeping. Correct idle control improves starting, stability, and overall efficiency during cutting and when the saw is at rest. Designed for Husqvarna professional and farm-grade saws, it is a direct fit for the 266 and 288 models and others in the same series. As an OEM part (501 26 85-01), it matches the original specification for reliable performance and consistent tuning, making it suitable for both workshop servicing and on-site maintenance.
Key Features:
- Genuine Husqvarna OEM part for accurate fit and function
- Fine-thread adjuster for precise idle speed setting
- Durable metal construction for long service life
- Helps prevent chain movement at idle for safer operation
- Supports stable tick-over and smoother throttle response
- Direct replacement; straightforward to install with basic tools
- Resists loosening during vibration typical of chainsaw use
- Suitable for regular servicing and carburettor tune-ups
- Matches factory specification to restore original performance
Typical Applications:
Used during routine servicing, carburettor adjustment, or after replacing carb components to set a stable idle. Ideal when the original screw is worn, missing, or damaged, and for seasonal tune-ups to compensate for temperature, altitude, or fuel changes. Helps maintain safe, reliable operation on site, in forestry work, and in home or workshop maintenance.
Also known as:
Carb idle screw, throttle stop screw, tick-over adjustment screw, carburettor idle adjuster, idle speed adjuster, throttle idle set screw.
Fits Models:
265RX, 266, 268K, 272K, 281, 288, 66
Alternate Part Numbers:
501 26 85-01, 501-26-85-01, 501268501
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