The throttle spring is one of the critical components that can regulate engine speed. Like any machine, a lawn mower can deteriorate over time, and so is the throttle cable. Adjusting the throttle is difficult when this cable breaks, leading to subpar mowing performance. If you’re struggling to operate your lawn mower, a Briggs and Stratton throttle linkage diagram is a valuable tool for making necessary adjustments.
This article is a one-stop resource for everything related to the Briggs and Stratton throttle spring diagram. It includes a detailed guide on fixing common issues associated with this part, ensuring you have all the information you need to get your mower back in top shape.
Briggs and Stratton Throttle Linkage Diagram
Here is a detailed linkage Briggs and Stratton throttle spring diagram. It helps you to locate the faulty part and you can work for its improvement.
The governor linkage is used to regulate the efficiency and speed of the Briggs and Stratton Engine. Governor Idle Spring and Main Governor Spring are labelled in this diagram which helps in keeping the constant speed of the engine. This constant speed is maintained by these springs with the help of a throttle valve.
Locating the Briggs and Stratton Throttle Spring
A throttle part of a lawn mower is a combination of different areas such as choke linkage, spring throttle, throttle linkage, and many more. All these components work together for the smooth functioning of the engine. If any one of these parts becomes faulty, the engine ceases. You can find the Briggs and Stratton throttle linkage location inside the engine by closing the governor linkage or spring. The throttle stays on the handle, and it looks like a knife.
Briggs and Stratton’s throttle has a T on the plastic end, and a cable passes through the fuel tank bracket. The cable is attached where the throttle is connecting, this is the trickiest part to locate. If you find the throttle connection through the fuel tank, you can fix it. It might be hard to remember the assembly and the connection of the throttle with the spring, governor, or linkage.
How to Replace a Faulty Throttle Spring
As the throttle spring wears out with time, replacing them requires mechanical knowledge. But you can do it by yourself with the right guide and tools. The complete step-by-step process to change a throttle spring is given below:
- First of all, ensure the compatible replacement spring is specific to the engine model.
- Let your engine cool down first and ensure the working area is well-ventilated.
- Locate the throttle linkage and disconnect it from the governor arm or carburetor by removing the bolts.
- Remove the old spring carefully with the help of needle-nose pliers, as they are used for tight connections.
- Now, hook the new spring onto the exact point of the linkage ensuring proper tension.
- Then reattach the throttle linkage with the carburetor and tighten the bolts.
- Start the engine and check the fine and smooth throttle response.
- If required, make a few adjustments to the linkage for best performance.
Difference Between Throttle Linkage and Governor Linkage
The throttle linkage and governor linkage both play critical roles in controlling the speed of your engine. However, their function is different. Most people get confused while locating the throttle and governor linkage because they look like each other. There is a slight difference between the governor’s link and the throttle that most people find challenging to locate and find.
The throttle linkage is slightly curvy, while the throttle governor link is straighter. If you can identify the throttle spring linkage, half of your problem gets solved. Another difference between a throttle linkage and a governor linkage is that there is a spring fit on the top of the governor linkage, while in the case of a throttle linkage, there is no spring. Remember all the differences listed here when distinguishing between a throttle and governor linkage.
Conclusion
You might never face throttle spring issues as they are uncommon and rare, and your machine might work appropriately without any throttle spring problems. But, if you are feeling increased load in your vehicle then the reason is probably the spring throttle, you might need to fix it quickly as it is one of the severe problems. The chance of replacing the spring arises only when the machine becomes completely useless, and you sell it. Otherwise, these throttle springs last a lifetime. This article helps us understand its role, find the location of the spring, and troubleshoot common issues.
FAQs
1. How Does the Briggs and Stratton Throttle Work?
The throttle controls the speed of the engine. Inside the crankcase are gears and flyweights that control engine speed. To perform more effectively, the throttle closes for regulation of air/fuel, but over time, it may result in a gradual reduction in engine speed because of increased load on the crankshaft.
2. How Does a Throttle Spring Work and Where Should I Connect it?
Imagine the throttle spring as a conductor, orchestrating the airflow within the throttle body. This enables your vehicle to maintain a steady pace and accelerate smoothly. It’s attached to a butterfly valve and operated by an accelerator wire. You can quickly locate this part by referring to a diagram.
3. Which Tools Do You Need to Replace Briggs and Stratton’s Throttle Spring?
To replace Briggs and Stratton’s throttle spring, you’ll need a few tools: an engine manual, needle-nose pliers, protective gloves, safety glasses, and another return spring for your throttle. While it may seem complex, don’t worry. You can always reach out to a mechanic or expert for assistance.