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SKU:
NLT1R02208
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Yamaha Big Bear Moto-4 350 CDI Box 3HN-85540-10-00
$31.99
In Stock
$31.99
Sale price
$31.99
Regular price
CDI ignition control module replacing Yamaha 3HN-85540-10-00 on compatible 1990–1994 Big Bear 350 and Moto-4 350 models.
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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.
Compatible equipment / model
- 1990 Yamaha Big Bear 350 YFM350ER / YFM350FW using 3HN-85540-10-00
- 1991–1994 Yamaha Big Bear 350 YFM350FW using 3HN-85540-10-00
- 1990 and selected 1992–1994 Yamaha Moto-4 350 YFM350ER using 3HN-85540-10-00
Product Overview
A no-spark condition or engine that cuts out as the module warms may involve the CDI, but stator and pickup resistance, ignition coil, plug cap, kill switch, grounds, connectors, and wiring should be tested first.
Match 3HN-85540-10-00, every plug and pin, mounting, model code, and year. Similar YFM350 boxes can have different internal timing and pinouts.
Key Features & Performance
- Restores ignition timing control after a confirmed module failure
- Application-specific electrical function for the listed circuit
- Reference, connector, pinout, and mounting details support a safer match
- Cross-references 3HN-85540-10-00
Replaces Part Numbers
- 3HN-85540-10-00
Common Uses
- Replacing a heat-sensitive CDI after other ignition components test correctly
- Replacing an open, shorted, intermittent, or physically damaged unit after testing
- Restoring the affected control or charging circuit after wiring faults are repaired
Technical Specifications
- Part Type: CDI Ignition Control Module
- Vehicle Family: Yamaha YFM350
- Condition: New aftermarket
Installation & Fitment
- Verify clean grounds and charging voltage before connecting the replacement module
- Disconnect battery power and inspect plugs, grounds, terminals, and harness routing
- Test every affected function before returning the equipment to service
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.
Frequently Asked Questions
Q: Will this fit a Yamaha Warrior 350? A: Do not assume so. Match the exact CDI reference and connector pinout rather than engine size.
Q: Can the CDI be tested with a simple resistance check? A: Many CDIs cannot be conclusively bench-tested; verify all external ignition inputs and wiring first.
Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.
Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.
Part Summary
keywords: Yamaha 3HN-85540-10-00 CDI, Big Bear 350 no spark, Moto-4 350 ignitor, YFM350 dies hot, 1990 1994 CDI box
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.