Description
This Oleo-Mac Sparta 25 ignition coil is an aftermarket ignition module for compatible Oleo-Mac Sparta 25, Sparta 25 TR and Sparta 26 brushcutters.
The current Sparta 25 illustrated parts catalogue identifies the ignition coil as 2501009R. Oleo-Mac parts data also cross-references 4138722R with 2501009R, while official parts-price data identifies both numbers as ignition modules for the Sparta 25/26 family.
Compatible Oleo-Mac Models
The ignition coil is used on:
- Oleo-Mac Sparta 25
- Oleo-Mac Sparta 25 TR
- Oleo-Mac Sparta 26
OEM references:
- 2501009R
- 4138722R
The current Sparta 25 IPL uses 2501009R. Oleo-Mac’s Sparta 25 TR parts information cross-references the ignition coil as 4138722R (2501009R).
Ignition System Details
On the standard Sparta 25 configuration, the official IPL lists:
- Ignition coil 2501009R
- Flywheel 61030179R
- Spark plug cap 4098064R
The ignition coil generates the high-voltage pulse required to fire the spark plug as the flywheel magnet passes the coil.
A defective ignition module can cause complete loss of spark, intermittent spark as the engine warms up or an engine that cuts out unexpectedly. However, the stop-switch circuit, spark plug, plug cap and wiring should also be checked when diagnosing an ignition fault.
Installation Checks
Disconnect the spark plug before dismantling the machine. Clean the coil mounting points and inspect the flywheel magnets for damage or contamination.
Install the coil squarely and set the air gap between the flywheel and ignition module to the manufacturer’s specification. Route the ignition and stop-switch wiring so that it cannot rub against the flywheel, clutch or hot engine components.
After assembly, verify a strong consistent spark before fully reassembling the brushcutter.
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