Yamaha Big Bear 350 4WD Intake Manifold Boot 1995–2000
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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.
- 1995 Yamaha Big Bear 350 4WD YFM350FW
- 1996 Yamaha Big Bear 350 4WD YFM350FW
- 1997 Yamaha Big Bear 350 4WD YFM350FW
- 1998 Yamaha Big Bear 350 4WD YFM350FW
- 1999 Yamaha Big Bear 350 4WD YFM350FW
- 2000 Yamaha Big Bear 350 4WD YFM350FW when the original boot matches
Product Overview
A split manifold can make a Big Bear hang at high idle, run lean, pop through the intake, or refuse to idle without choke. Spraying over the symptom with richer jetting does not repair the air leak.
Flex the removed boot and inspect its underside, then compare bore, bolt spacing, carburetor angle, vacuum fittings, and molded shape.
Key Features & Performance
- Seals the carburetor outlet to the cylinder-head intake port
- Molded intake connection for the stated engine and fuel-system location
- Addresses a confirmed leak or failed connection without changing carburetor calibration
- Physical details should be compared with the removed part
Common Uses
- Repairing a verified intake leak on a Big Bear used for work or trail riding
- Replacing rubber that is split, hard, loose, or oil-soaked
- Keeping unmetered or unfiltered air out of the engine
Technical Specifications
- Part Type: Carburetor Intake Manifold Boot
- Engine: Yamaha 350cc single cylinder
- Condition: New aftermarket
Installation & Fitment
- Clean the area before removal so dirt cannot fall into the intake port
- Compare diameters, bolt spacing, molded angle, fittings, and clamp lands
- Install without twisting the rubber and repeat the intake leak check
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: Can an intake-manifold crack cause choke-only running? A: Yes. Extra air downstream of the carburetor can make the mixture too lean to run normally.
Q: Should the carburetor be adjusted before fixing the leak? A: No. Restore a sealed intake first, then set idle and mixture if adjustment is still needed.
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 Big Bear 350 intake boot, YFM350FW manifold, Big Bear vacuum leak, Yamaha only runs choke, 1995 2000 intake manifold
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.