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NLT1C01009
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Carburetor for 1997-1998 Yamaha Big Bear 350 4x4 | 4WU-14901-20-00
$66.99
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$66.99
Sale price
$66.99
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This aftermarket carburetor replaces 4WU-14901-20-00 on compatible 1997-1998 Yamaha Big Bear 350 YFM350 4x4 ATVs.
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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
- Yamaha Big Bear 350 YFM350 4x4 1997
- Yamaha Big Bear 350 YFM350 4x4 1998
Product Overview
A Big Bear that has sat with old fuel can develop hard starting, a hanging idle, hesitation, or fuel overflow when tiny carburetor passages and the float valve become damaged or blocked. This replacement restores a complete metering body for the specific late-1990s YFM350 application after the tank, petcock, intake boot, and ignition have been checked.
This makes it a practical choice when diagnosis points to the original component rather than a related system fault. Do not rely on the Big Bear 350 name alone; match year, 4x4 configuration, 4WU reference, cable ends, and intake dimensions.
Key Features & Performance
- Replacement carburetor for the listed YFM350 application
- Restores fuel metering after varnish or corrosion damage
- Connection points for compatible choke and throttle controls
- Aftermarket complete-body alternative to a difficult rebuild
Replaces Part Numbers
- 4WU-14901-20-00
- 4WU149012000
Common Uses
- ATV only starts with choke
- Engine stalls when throttle is applied
- Fuel leaks from the overflow
- Original carburetor casting or float system is damaged
Technical Specifications
- Product Type: Carburetor
- Vehicle: Yamaha Big Bear 350
- Model Code: YFM350
- Drive: 4x4
- Years: 1997-1998
- Replacement Type: Aftermarket
Installation & Fitment
- Clean the fuel tank and inspect the petcock before fitting a new carburetor
- Compare jetting and cable attachments with the original
- Replace cracked intake boots and seals
- Set float, idle, and mixture only to the service specification
- Inspect carefully for fuel leakage before riding
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Do not rely on the Big Bear 350 name alone; match year, 4x4 configuration, 4WU reference, cable ends, and intake dimensions.
Frequently Asked Questions
Q: Does this fit every Yamaha Big Bear 350? A: No. This listing targets 1997-1998 4x4 models using 4WU-14901-20-00.
Q: Can a cracked intake boot cause a lean idle? A: Yes. An intake leak can make a good carburetor run poorly.
Q: Why replace instead of clean? A: Replacement is useful when corrosion, stripped threads, worn bores, or damaged components make rebuilding unreliable.
Part Summary
keywords: Yamaha Big Bear 350 carburetor replacement, 4WU-14901-20-00 carb fit, 1997 YFM350 4x4 carb, 1998 Big Bear fuel system repair, Yamaha ATV stale fuel carburetor
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.