Last Updated on September 14, 2021 by Mark Brian
Although the start switch may not appear to be a vital component of your lawnmower, it may be a pain if it fails. It’s possible that your lawnmower won’t start or that you won’t be able to switch it off while it’s running because of this.
If your ignition switch is damaged, you’ll need to get it replaced. This might imply that you can find a replacement part that is a perfect match. It implies that you may simply remove the old start switch and replace it with a fresh or otherwise unused one. However, an exact equivalent may be too expensive or unavailable in many other cases.
You must switch to a different one in this instance. As a result, you must connect it to your gas mowers in the proper manner. Most people find fixing and working on electrical systems to be tiresome and difficult, but with the right attitude, these tasks may be completed quickly and easily.
Use of Ignition Key:
For the variety of reasons the use of an ignition key is required. It’s possible that the key to start your riding mower becomes misplaced or damaged in the ignition switch. Then you must seek out the best option for resolving all of your issues.
However, replacing a component might be expensive at times. Moreover, you must appropriately connect it to your gas mowers. Most people find repairing and working on electrical systems to be tedious and complex, but with the right attitude, these jobs become simple.
The Best Alternative – Push Button Start & Toggle Switch:
You can run a lawn mower with the touch of a button, thanks to toggle switches and push start buttons. Despite the fact that the usage and setup of these two devices are the same, the procedure differs somewhat.
In riding and push propelled lawn mowers, as well as other motorized vehicles, toggle switches and push start buttons are ubiquitous. Other types of toggle switches and push start buttons for electrical equipment (such as a battery powered riding lawn mower) are also available.
How to Wire a Lawn Mower Push Button Start:
Step 1: First, get a circuit schematic.
Step 2: Find all of the components that require wiring.
Step 3: Ground the switch, then connect it to the solenoid.
Step 4: Connect the switch to the solenoid.
Step 5: Connect the magneto to the switch using wires.
Step 6: Connect the battery to provide voltage.
Step 7: Connect the lights/accessories
Step 8: Secure the switch in place using a screwdriver.
Step 9: Verify that everything is in working order.
A very simple list of things is necessary for wiring the ignition switch. Some of these items are a must, while others are required in the event of an unanticipated event.
- Grip Pliers
- Tape with electricity (insulation or furring of open connections and damaged wires)
- Color coded cables (Extension of smaller wires to the needed area)
- Set of open ended spanners (smaller numbers)
- Iron soldering (for soldering the terminals or connection if required)
- Clips and clamps in plenty (if a preinstalled connection breaks off)
Step 1: First, get a circuit schematic:
A circuit diagram is a diagram that depicts how all of the fundamental connections are connected. In addition, the model of the used ignition switch, as well as other components, is indicated.
Circuit schematics may usually be found in the instruction manual. There’s no need to panic if you’ve misplaced your guidebook. By looking up the lawnmower’s make and model, you may quickly get the appropriate schematic.
Once you’ve identified the circuit schematic, you should be able to recover the following information:
- The start switch is connected to all of the important components, including the solenoid, battery, and magneto coil.
- To determine the overall position of all equipment, a schematic approach is developed
Even if the chart isn’t readily available, it may be quite useful. Using the knowledge in the diagnostic section, anybody may devise a realistic plan for correcting any circuit related difficulties.
Step 2: Find all of the components that require wiring:
- Battery: The main step is to locate the battery. Indeed, if it’s under the hood, it’s most likely beneath the seat, or at the very least the most visible section.
- Magneto: The magneto is usually situated near the relay and fuse box.
- Solenoid: To get to the solenoid, follow the positive terminal wire. This will get you up to the Solenoid. A three or four connection miniature double cylinder component.
- Lights: The lights are always located on the mower’s front and are the easiest to locate. They also usually have a separate switch.
Step 3: Ground the switch, then connect it to the solenoid:
To connect the terminal with the sign “G” to the ground, connect the wire to the mower’s body, the battery’s negative terminal, or the Solenoid’s ground terminal. If you’re not sure whether the connection is confirmed, use a multimeter to test it.
Step 4: Connect the switch to the solenoid:
Locate the positive terminal of the solenoid. For the most part, it’s the bottom terminals plus symbol. By using a wire with clips on both ends, connect the “S” terminal to the positive terminal of the solenoid.
Step 5: Connect the magneto to the switch using wires:
The “M” terminal of the ignition switch is connected to the magneto coil, which has a single open terminal.
Step 6: Connect the battery to provide voltage:
The positive battery is attached to the terminal marked with the letter “B.”
Step 7: Connect the lights/accessories:
The lights’ wires are connected to the terminal as a single unit, indicating “L” or “Y.” It is dependent on the type of ignition switch used.
Step 8: Secure the switch in place using a screwdriver:
After double checking the connections, replace the switch and cover it with the rubber or plastic cover using the nut/screws you removed earlier.
Step 9: Verify that everything is in working order:
Make a test start with the mower. Check all fuses and connections if a problem develops.
Components Included in the Whole Process:
- Magneto: A magneto is a high voltage passing coil that absorbs energy from the start coil. When required, it also shuts down the motor.
- Staring Motor Engine: The starting engine is the motor that rotates the flywheel of the engine. It allows air and fuel to enter the chamber, where they are pushed until the machine comes on due to a spark. At this point, the starting engine is still rotating the motor.
- Battery: The unique electrical components are powered by a 12 V power supply battery. It provides necessary control for running accessories like lights and fans, as well as cranking up the starting engine to start the motor. Venturing up the 12 V also provides a high voltage for spark production.
- Solenoid: An electromagnetic switch establishes a connection between the battery and the starting motor. As soon as the key flag is received, the magnet becomes dynamic due to current flow. It establishes electrical contact between the motor and the battery, allowing the engine to run.
- Ground: In most cases, the link provides a large potential difference and, as a result, corrects the performance of these electrical systems.
To Check the Ignition Switch Workability (Faulty or Not Faulty):
Understanding how these components function isn’t enough. It’s critical to verify whether or not the ignition switch is faulty before learning about the rewiring switch for the start switch. The test is straightforward and objective, yet it necessitates the use of a sophisticated multimeter.
All of the terminals are checked for coherence one by one. If your digital multimeter has one, use the continuity mode with a beep. You may also use the resistive measurement mode on the multimeter. Use the smallest possible setting.
The resistance should be close to 0 ohms when the switch is in good working order. The ignition switch is faulty if you measure greater or even no connection. The test is carried out based on the role of each link, as described previously. This diagnostic will consist of three fundamental phases.
Tips for Save Wiring:
- Exact Match: Wherever feasible, try to use the manufacturer’s recommended components when replacing lawn mower parts.
Power Off the Mower: Do not forget to remove the mower key once you’ve switched off the lawnmower.
- Ground: Always earth the mower before wiring it, to avoid any shock.
Safety equipment: Use safety equipment such as hand gloves, goggles, and ear protection when operating on your lawn mower.
Solenoid: Avoid contacting the metal of the screwdriver when connecting the mower start and the solenoid.
Clean Terminals: Using a wire brush and sandpaper, remove any buildup from the terminals.
Damaged Wires: Check for continuity using a digital multimeter before inserting the wires. Replace any cables that have been damaged or are causing unexpected results.
Safety Switches: If a fuse is required, use it; otherwise, security switches should be used and should not be abrogated.
Frequently Asked Questions (FAQs):
How to wire a push button start on a riding lawn mower?
Simply connect a wire from the battery to your push button and the other side to the starter solenoid to obtain push button start. Run the power wire from the battery to the “key” and then from the “key” to the push button if you want it to be deactivated while the “key” is off.
What are the three wires on the starter (ignition terminal)?
Three terminals and three connections are generally seen on a starter mounted solenoid: The “B” terminal, often known as the “battery” terminal, is as follows: This connector represents the coordinate connection of the solenoid to the positive battery cable. The ignition switch supplies electricity to the “S” or “begin” terminal.
Is it possible to begin a lawnmower that has a faulty ignition switch?
If the switch is functioning in the start position, you can jumpstart a mower with a faulty ignition switch. Otherwise, there isn’t a chance.
Can I add an electric starter to my lawn mower?
A 12V electric starter could be possible, however, it depends on the engine. Some manufacturers, like Briggs & Stratton, Kohler, and Honda, build their engines to make the switch from pull to electric start as simple as possible, and they even offer the necessary components.
Despite the fact that they might fail at any time, ignition switches are not prone to letdown. They may become useless if this happens, and the lawnmower will be unable to start or switch off.
It’s critical to insist on taking the proper measures to install and replace the equipment. You must first analyze the problem before you can find out what it is. Before making any changes to the wiring, always read the instructions.
Happy Mowing to You!