Customer service
Tomos A35 ignition with pick-up: how to recognize it
A common question with Tomos A35 electronic ignitions is whether the ignition has a pick-up module or not. The difference is important because the ignition type affects how the ignition timing is controlled and how the setup should be checked or adjusted.
In this guide, we show the difference between a Tomos electronic ignition with pick-up and without pick-up, explain what the pick-up does, and show the correct mounting distance for the pick-up module.
What is a Tomos pick-up module?
The pick-up module on a Tomos ignition registers the position of the crankshaft by detecting changes in the magnetic field around the flywheel. It sends an electrical signal to the ignition module, which then controls when the spark plug fires.
This signal helps the ignition system create a spark at the correct moment. Correct ignition timing is important for reliable starting, smooth running, good throttle response, and proper engine performance.
Ignition with pick-up vs without pick-up
Tomos electronic ignitions can be found with or without a pick-up module. The easiest way to tell the difference is to look near the flywheel for the separate pick-up sensor.
| Ignition type | How it works | What to look for | Timing adjustment |
|---|---|---|---|
| Ignition with pick-up | Uses a pick-up sensor to read the flywheel/crankshaft position. | A separate pick-up module is mounted close to the flywheel. | The pick-up signal helps determine the ignition timing. |
| Ignition without pick-up | Does not use a separate pick-up sensor. | No separate sensor is mounted near the flywheel. | The ignition position is set manually. You can read more about that here. |
How to recognize the ignition type
Compare your ignition with the examples below. If your ignition has a separate pick-up module mounted next to the flywheel, you have an ignition with pick-up. If that sensor is missing, you have an ignition without pick-up.
Tomos ignition with pick-up module
This version has a visible pick-up module. The pick-up sits close to the flywheel and reads the flywheel position while the engine rotates.
Tomos ignition without pick-up module
This version does not have the separate pick-up sensor. With this type of ignition, the ignition position is adjusted manually.
Mounting and setting the pick-up distance
When mounting the pick-up module, the distance between the pick-up and the flywheel is important. If the gap is too large or too small, the signal may become unreliable and the ignition may not work correctly.
FAQ: Tomos A35 ignition with pick-up
How do I know if my Tomos ignition has a pick-up?
Look near the flywheel. If you see a separate sensor mounted close to the flywheel, your ignition has a pick-up module. If there is no separate sensor, it is an ignition without pick-up.
What does the pick-up module do on a Tomos ignition?
The pick-up module reads the crankshaft or flywheel position and sends a signal to the ignition module. This helps the ignition system fire the spark plug at the correct moment.
What should the Tomos pick-up distance be?
The pick-up should be set to 0.5 mm from the flywheel, with a tolerance of +/- 0.1 mm.
Can I manually set the ignition timing on a Tomos ignition without pick-up?
Yes. With an ignition without pick-up, the ignition position is set manually. This is different from an ignition with a pick-up sensor.
