T1A01-36A CDI Unit for Yamaha Mariner 9.9 15 20 25 HP 2-Stroke Outboards
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Yamaha 9.9 HP two-cylinder 2-stroke outboards using 695-85540-11
- Yamaha 15 HP two-cylinder 2-stroke outboards using 695-85540-11
- Yamaha 20 HP two-cylinder 2-stroke outboards with matching CDI
- Yamaha 25 HP, C25, and CV25 2-stroke outboards with matching CDI
- Mariner 9.9, 15, 20, and 25 HP Yamaha-built applications using the same reference
Product Overview
An outboard with no spark, intermittent spark, or an ignition cutout can lead a troubleshooter to the CDI—but only after the stop circuit, grounds, stator, pulser coil, and wiring test correctly. This unit is for engines that match the reference number and connector layout.
Yamaha used different ignition boxes across nearby horsepower and year ranges. Compare every plug and wire color before connecting the replacement.
This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Replacement CDI for compatible two-cylinder Yamaha-built outboards
- Matches T1A01-36A and 695-85540-11 references
- Covers select 9.9, 15, 20, and 25 HP 2-stroke applications
- Useful after proper ignition-system testing confirms CDI failure
Replaces Part Numbers
- T1A01-36A
- TIA01-36
- 695-85540-11
- 695-85540-11-00
Common Uses
- Repairing a verified no-spark condition
- Correcting intermittent ignition after wiring and coils test good
- Replacing a heat-failed or physically damaged CDI
- Restoring the correct ignition control on a matching outboard
Technical Specifications
- Product Type: CDI ignition unit
- Engine Type: Two-cylinder 2-stroke outboard
- Horsepower Range: Select 9.9-25 HP applications
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the battery or stop circuit as required
- Photograph and label each connector before removal
- Test the stator, pulser, grounds, coils, and kill circuit first
- Match the case, plugs, and wire colors to the original CDI
- Never test spark near fuel vapor
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.
Frequently Asked Questions
Q: Will a new CDI fix any no-spark problem? A: No. The stop switch, stator, pulser coil, grounds, and ignition coils can cause the same symptom.
Q: Does horsepower alone confirm fit? A: No. Match T1A01-36A or 695-85540-11 and the connector layout.
Q: Does it fit Mariner outboards? A: It fits select Yamaha-built Mariner applications that use the same CDI reference.
Part Summary
keywords: T1A01-36A CDI replacement, Yamaha 9.9 no spark box, 695-85540-11 ignition unit, Mariner 15 HP CDI, Yamaha 25 two stroke ignition, outboard CDI troubleshooting
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.