SKU: 48102634419

WFLNHB CDI Box Replacement for Yamaha Moto 4 & Big Bear 350, Model 1YW-85540-20-00, Black, 1987-1988

$38.57 $42.85
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

WFLNHB CDI Box Replacement for Yamaha Moto 4 & Big Bear 350, Model 1YW-85540-20-00, Black, 1987-1988The WFLNHB CDI Box is a high performance replacement component designed specifically for Yamaha motorcycles. This CDI box is engineered to enhance engine performance by optimizing spark advance angles, ensuring efficient fuel combustion and quicker engine starts. Ideal for owners of Yamaha Moto 4 YFM350ER and Yamaha Big Bear 350 YFM350FW, this CDI box is an essential upgrade for improved functionality and reliability. Constructed with high quality

The WFLNHB CDI Box is a high-performance replacement component designed specifically for Yamaha motorcycles. This CDI box is engineered to enhance engine performance by optimizing spark advance angles, ensuring efficient fuel combustion and quicker engine starts. Ideal for owners of Yamaha Moto 4 YFM350ER and Yamaha Big Bear 350 YFM350FW, this CDI box is an essential upgrade for improved functionality and reliability.

Constructed with high-quality materials, the WFLNHB CDI Box guarantees durability and reliable performance under various riding conditions. Its black finish offers a sleek look that integrates seamlessly with your motorcycle’s design. This CDI box features advanced technology that automatically adjusts the spark advance angle based on engine speed, which significantly enhances fuel efficiency and engine responsiveness. Moreover, the straightforward installation process makes it accessible for both professionals and DIY enthusiasts.

Key Features:
  • Compatible with Yamaha Moto 4 YFM350ER (1987-1988) and Yamaha Big Bear 350 YFM350FW 4x4 (1987-1988).
  • Replacement Part Number: 1YW-85540-20-00, ensuring a perfect fit for your vehicle.
  • Includes one CDI Box for easy installation and immediate use.
  • Adjusts spark advance angle automatically for improved fuel burning efficiency.
  • Facilitates quicker engine starts, enhancing overall ride experience.
  • Durable black construction designed to withstand various environmental conditions.
  • Easy to install, making it suitable for both professional mechanics and DIY riders.

The WFLNHB CDI Box is a valuable addition for motorcycle enthusiasts looking to enhance their Yamaha’s performance. It is especially beneficial for riders who prioritize fuel efficiency and quick engine response. This product is an excellent choice for those seeking reliability and improved performance in their riding experience.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48102634419

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4.4 ★★★★★
Based on 7 reviews
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Adrienne
Houston, US
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
N
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Nina Miller
Fort Morgan, US
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2025
L
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Lakerat
Omaha, US
★★★★★ 1
Horribly ‘weird’ sweet flavor
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Horrible taste - synthetic sweetness than destroys my shakes. I bought Thorne because of its high quality but this is one of their products that won’t work for me. I’m struggling through the jar because it’s too expensive to waste. Using cacao powder, cinnamon & cardamom to try to tone down the overwhelming ‘sweet.’
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Reviewed in the United States on May 18, 2026
B
Verified Purchase
Bill
Alexandria, US
★★★★★ 5
Absolutely Great Stuff
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla flavored Protein Powder has to be the Best tasting Protein Powder Ever. Literally delicious. Product satisfies your appetite while supplementing your body with needed protein and nutrients. Combined with gym workouts I’ve noticed firmer muscles. A nice noticeable improvement.
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Reviewed in the United States on May 5, 2026
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Ckelly
Dallas, US
★★★★★ 5
It's a thing...
Flavor Name: Vanilla, Size: 14 Servings (Pack of 1)
I am probably the most skeptical person when it comes to supplements. I’ve tried so many over the years and honestly… most of them felt like a waste of money or just hype. But I have to say—this combo has completely surprised me. I’ve been consistently using Thorne protein and creatine, and within a few weeks I started noticing real changes. Not just how I feel, but how I look. My shoulders especially are looking more defined, and I feel stronger in my workouts without feeling jittery or weird like some products can make you feel. What really stands out to me is how clean and simple it is. No bloating, no heavy feeling, no unnecessary extras—just something that actually supports what I’m already doing. I also love that it fits easily into my routine. I take my creatine with my morning coffee (super easy habit), and I’ve been doing a protein shake after workouts which has helped a lot with recovery and keeping me on track nutritionally. I’m currently in a calorie deficit getting ready for a trip, and this has honestly made it feel doable without feeling depleted. If you’re someone like me who is hesitant about supplements, I’d say this is the first time I’ve actually felt like something made a noticeable difference.
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Reviewed in the United States on April 3, 2026

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