PRODUCT DETAILS
CDI Unit / Ignition Pack / Power Pack for Yamaha Outboards
High-quality marine-grade aftermarket CDI ignition unit / power pack for selected Yamaha 75 HP, 85 HP and 90 HP 2-stroke outboard engines.
Designed for selected:
3 Cylinder – 2 Stroke Yamaha Outboards
Approximate application period:
1984–1996
depending on the exact horsepower, model and engine specification.
Designed as a replacement for the Yamaha 688-85540 CDI family.
Fits Selected Yamaha Outboards
75 HP
Selected 75 HP 3-cylinder 2-stroke models including:
- C75
- E75
- Selected 75-series models
Common documented applications include selected:
- C75TLR
- E75MLH
- 75A-series
Approx. applicable period varies by model.
85 HP
Selected 85 HP 3-cylinder 2-stroke models including:
- C85
- CV85
- 85A
- Selected 85-series models
Common documented applications include selected:
- C85TLR
- CV85EL
- CV85ETL
- 85A-series
90 HP
Selected 90 HP 3-cylinder 2-stroke models including:
- 90ETL
- 90TLR
- 90TJR
- 90A
- Selected 90-series models
Common documented applications include selected:
- 90ETLN
- 90ETXN
- 90ETLK
- 90ETLJ
- 90ETLJ-JD
- 90ETLH
- 90ETLH-JD
- 90ETLG
- 90ETLG-JD
- 90ETLF
- 90ETLF-JD
- 90ETLD
- 90ETLD-JD
- 90ETLDA
- 90TJRP
- 90TLRP
Fitment Summary
| HP | Engine | Cylinders | Selected Models |
|---|---|---|---|
| 75 HP | 2 Stroke | 3 | C75 / E75 / 75A Series |
| 85 HP | 2 Stroke | 3 | C85 / CV85 / 85A Series |
| 90 HP | 2 Stroke | 3 | 90 / 90A Series |
Approximate overall application period:
1984–1996
⚠️ IMPORTANT
The 1984–1996 range does NOT mean that every 75 HP, 85 HP or 90 HP Yamaha manufactured during those years uses this CDI.
Fitment depends on the exact engine model and specification.
Replaces Yamaha Part Numbers
- 688-85540-12
- 688-85540-12-00
- 688-85540-13
- 688-85540-13-00
- 688-85540-14
- 688-85540-14-00
- 688-85540-15
- 688-85540-15-00
- 688-85540-16
- 688-85540-16-00
Also searchable without hyphens:
- 6888554012
- 6888554013
- 6888554014
- 6888554015
- 6888554016
Additional Cross References
- CDI Electronics 117-688-15
- Sierra 18-5130
- 366-110
- 366-110A1
OEM manufacturer names and part numbers are provided for identification and compatibility reference only.
What Is the CDI / Ignition Pack?
The CDI – Capacitor Discharge Ignition – unit is an important component of the Yamaha outboard ignition system.
It controls the ignition system and delivers the required electrical output to the ignition coils at the appropriate time.
A faulty CDI / ignition pack can be associated with symptoms such as:
- No spark
- Loss of spark on one or more cylinders
- Intermittent spark
- Difficult starting
- Misfiring
- Engine cutting out
- Loss of ignition when hot
- Irregular engine operation
Important
These symptoms do not automatically mean that the CDI unit is faulty.
Similar problems can be caused by other components in the ignition system.
Proper diagnosis is recommended before replacing the CDI unit.
Product Features
- Marine-grade aftermarket CDI unit
- Ignition pack / power pack
- Suitable for selected Yamaha outboards
- 75 HP
- 85 HP
- 90 HP
- 2 Stroke
- 3 Cylinder
- Replacement for Yamaha 688-85540 family
- Replacement for 688-85540-12
- Replacement for 688-85540-13
- Replacement for 688-85540-14
- Replacement for 688-85540-15
- Replacement for 688-85540-16
- Direct replacement for compatible applications
- New aftermarket ignition component
⚠️ IMPORTANT – Check Before Ordering
Please do NOT order this CDI by horsepower or year alone.
Yamaha used different CDI / ignition units depending on the exact engine model and specification.
Before purchasing, please check:
- Engine horsepower
- Exact Yamaha model
- 2-stroke engine
- 3-cylinder configuration
- Engine serial number
- Original CDI part number
- Electrical connectors
- Wiring configuration
- Mounting arrangement
Ideally, match your original CDI to one of these references:
688-85540-12
688-85540-13
688-85540-14
688-85540-15
688-85540-16
⚠️ Appearance Does Not Confirm Fitment
If the CDI unit looks the same as the one fitted to your engine, this does not always mean it is the correct part for your outboard.
Different Yamaha CDI units can look very similar externally but have different electrical specifications and applications.
Always check the original part number and exact engine details.
If you are unsure, contact SSI Marine before purchasing.
Before Replacing Your CDI Unit
If your Yamaha has an ignition fault, we recommend checking the complete ignition system before installing a replacement CDI.
Check:
- Stator / source coil output
- Pulser / trigger components
- Ignition coils
- Spark plugs
- Spark plug caps and leads
- Stop / kill circuit
- Engine earth / ground connections
- CDI wiring
- Electrical connectors
- Burnt or corroded terminals
- Damaged wiring
A fault elsewhere in the ignition system can produce symptoms similar to a failed CDI unit.
Aftermarket Replacement Part
This is a high-quality marine-grade aftermarket replacement part.
It is not a genuine Yamaha component.
Yamaha names and OEM part numbers are provided for identification and compatibility reference only.
The component is designed as a replacement for compatible Yamaha applications using the 688-85540-12 / 13 / 14 / 15 / 16 CDI family.
Buyer Responsibility
It is the buyer's responsibility to confirm compatibility before purchasing.
Please check:
- Yamaha engine
- 75 HP / 85 HP / 90 HP
- 2 Stroke
- 3 Cylinder
- Exact engine model
- Engine serial number
- Original CDI part number
- Electrical connections
If you are unsure, please send SSI Marine:
Engine model + horsepower + complete serial number + clear picture of the existing CDI
Our technical team will be happy to help identify the correct ignition unit.
Why Buy From SSI Marine?
- Marine-grade aftermarket & OEM-spec parts
- Workshop-tested products
- More than 10 years supplying and working with outboard engines
- Same-day dispatch before 1 PM Monday–Friday
- Royal Mail Tracked 24
- UK stock
- Collection available from Leigh, Greater Manchester
- Technical support from experienced outboard specialists
- Workshop open Monday–Friday, 9 AM–5 PM
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.









