Product Parameters
| Specification Item | Chain saw parts |
|---|---|
| Compatible Models | Stihl MS661 (Standard, Non-M-Tronic) |
| Replaces OEM No. | 1144 120 0600 |
| Equivalent Model | Walbro WJ-135B |
| Engine Displacement | 91.1 cm³ (for reference) |
| Engine Power | 5.40 kW (for reference) |
| Includes | Adjusting screws H (High), L (Low), LA (Idle) |
| Limiter Caps | Pre-installed on H and L screws |
Product Description
Product Details
1. Precision Fuel and Air Mixing
Designed to efficiently mix fuel and air for optimal combustion, ensuring consistent engine performance and throttle response .
2. Compensator System for Consistent Performance
Features a compensator that adjusts the fuel mixture to maintain stable power and exhaust quality even as the air filter becomes dirty, reducing maintenance frequency .
3. Standard Adjustment Capability
Features adjustable High (H), Low (L), and Idle (LA) speed screws, allowing for fine-tuning of the engine's performance
Products Package
About Us
Production
Quality control
FAQ
Q1: Will this carburetor fit my MS661 C-M (M-Tronic) model?
A: No. This carburetor is for standard MS661 models. M-Tronic versions (MS661 C-M) use a different electronic carburetor that is not manually adjustable ;
Q2: What are the basic settings for the H and L screws?
A: The standard basic setting is to turn the High (H) screw counterclockwise 1.5 turns and the Low (L) screw counterclockwise 1 turn from their lightly-seated positions .
Q3: What is the compensator system on this carburetor?
A: The compensator is a control system that uses pressure compensation to maintain stable engine performance even as the air filter becomes clogged, meaning you don't need to clean the filter until you notice a power drop.
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