67F-85540-00-00 Yamaha ECU CDI | Genuine Used Part

🔧 Product Description

Genuine Yamaha CDI Unit Assembly - Part Number: 67F-85540-00-00

A genuine Yamaha CDI / ignition control unit used on selected Yamaha F80 and F100 four-stroke outboards. This unit controls ignition timing and spark-trigger output by processing engine speed and timing signals from the ignition system. It is a critical electrical component and must be matched by exact part number, model code, serial number and connector layout before installation.

⚙️ Key Features

• Genuine Yamaha CDI unit assembly

• Correct Yamaha part number 67F-85540-00-00

• Used on selected Yamaha F80 and F100 four-stroke outboards

• Supports the 67F CDI ignition-control family

• Exact fitment depends on model, year, serial number and plug configuration

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 67F-85540-03-00 later related 67F CDI service reference

• 67F-85540-01-00 intermediate related 67F CDI service reference

• 67F-85540-00-00 earlier CDI unit assembly reference

OEM / Related Numbers:

• 67F-85540-00-00

• 67F855400000

• 67F-85540-00

• 67F8554000

• 67F-85540-01-00

• 67F855400100

• 67F-85540-03-00

• 67F855400300

• Related electrical component family: 67F CDI ignition system

• Related F80 / F100 electrical-system reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Yamaha F80 and F100 four-stroke outboard ignition systems

Typically suits:

• Engine models:

• Yamaha F80 - 1999 electrical system using 67F CDI family

• Yamaha FT80TRX - 1999 electrical system using 67F CDI family

• Yamaha F80A - 1999 electrical system using 67F CDI family

• Yamaha F80AET

• Yamaha F80AETL

• Yamaha F100 - 1999 electrical system using 67F CDI family

• Yamaha F100TRX - 1999 electrical system using 67F CDI family

• Yamaha F100AET

• Yamaha F100AETL

• Yamaha F100 - 2000 electrical system using 67F CDI family

• HP Range: 80HP - 100HP

• Engine Type: Yamaha inline four-cylinder four-stroke outboard

• Year Range: Approximately 1999 - 2000 for the 67F-85540-00-00 reference, with later replacement by 67F-85540-01-00 / 67F-85540-03-00 where specified

• Serial Note: Final fitment must be checked against the serial-numbered Yamaha electrical diagram and the CDI label fitted to the engine.

🔌 Function

The CDI unit receives ignition charge and timing signals, then triggers the ignition coils at the correct point for engine speed and load.

Common signs of failure:

• No spark on one or more cylinders

• Intermittent spark loss when hot

• Hard starting or no-start condition

• Misfire at idle or under load

• Ignition timing fault after pulser and charge coil testing

• Engine cutting out without fuel-system fault

• Water ingress, heat damage or corrosion at CDI connectors

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated