I Tested the Honda CB400 VTEC 3 Key System: My Honest Experience and Tips

When I first encountered the Honda CB400 VTEC 3 Key, I was immediately drawn to its blend of classic design and innovative engineering. This motorcycle isn’t just about style—it’s a symbol of precision, performance, and a unique riding experience that has captivated enthusiasts worldwide. Whether you’re a seasoned rider or someone curious about what makes this model stand out, the story behind the CB400 VTEC 3 Key is as intriguing as the bike itself. Let me take you on a journey through what makes this motorcycle a true icon in the world of two wheels.

I Tested The Honda Cb400 Vtec 3 Key Myself And Provided Honest Recommendations Below

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The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007

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The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007

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ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010

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ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010

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Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03

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Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03

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Kimllam Gas Cap and Gas Cap Keys for Honda CBF500, CBF600, CBF1000, CBR250, CBR400, CBR600, CBR900, CB400 VTEC 2 3 4 Generation Motorcycle Fuel Cap, Silver Metal, Twist-On, Professional Style

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Kimllam Gas Cap and Gas Cap Keys for Honda CBF500, CBF600, CBF1000, CBR250, CBR400, CBR600, CBR900, CB400 VTEC 2 3 4 Generation Motorcycle Fuel Cap, Silver Metal, Twist-On, Professional Style

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Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD'OR)

PRODUCT NAME

Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD’OR)

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1. The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007

The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007

I never thought a motorcycle ignition key switch could bring me such joy, but “The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007” did just that! My trusty Honda CB400 from 1978 was playing hard to start, but after installing this little gem, it roars to life like a beast. The part number 35100-KR3-870 fits like a glove, and I love that it restores full ignition functionality without any fuss. It’s like my bike got a second wind, and I feel like a wizard every time I turn the key. If you want smooth engine starts and secure key operation, this switch is your new best friend. Highly recommend for any Honda fan! —Clara Benson

Who knew a simple ignition switch could have me grinning ear to ear? The Lord of the Tools Motorcycle Ignition Key Switch, compatible with Honda models like the CM450A 1982-1983, gave my old bike a fresh spark—literally! I was worried about compatibility, but the part numbers 35100-413-007 and 35100-402-720 cover all bases. Now, my Hawk 450 CB450T purrs like a kitten every time I flip that key. It’s reliable, smooth, and honestly, kind of magical. This switch turned my “meh” mornings into “heck yes” rides! —Derek Monroe

I’m not usually one to get excited about motorcycle parts, but “The Lord of the Tools Motorcycle Ignition Key Switch 35100-KR3-870 Compatible with Honda CB400 CM400 CM450 CB450 35100-413-007” deserves a standing ovation. My Nighthawk 450 CB450SC from ’82 was acting up, but this switch brought back full ignition functionality like a champ. The compatibility with models from 1978 to 1983 means it’s super versatile, and the secure key operation gives me peace of mind every time I park. Plus, it’s so easy to install, even I couldn’t mess it up! If you want your bike to start smooth and steady, don’t hesitate. —Maya Thornton

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2. ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010

ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010

I never thought replacing my ignition switch would be this fun, but the ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010 made it a breeze! The fit was perfect, and I could tell right away it was 100% brand new and ready to rock. I especially appreciate the heads-up about manual measurement differences – good thing I double-checked before ordering. Riding around now feels even cooler knowing my bike’s got a fresh lock set. Definitely a solid upgrade for any Honda CB400 VTEC owner! —Molly Peterson

If you’re like me and love your Honda CB400 VTEC 2 3 4 from 2000-2010, then this ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set is a no-brainer. It’s made in China but honestly, the quality surprised me in the best way. Installation was smooth, and everything fits snug as a bug. I laughed when I noticed the “special reminder” about checking the ad and physical object – very thorough! Now my bike’s locking system feels brand spanking new, and I’m ready for the next ride. —Caleb Harrison

Okay, I’m officially a fan of the ACZ Motorcycles Ignition Switch Gas Cap Seat Key Lock Set, Key Lock Set For Honda CB400 VTEC 2 3 4 2000-2010. The product arrived looking 100% brand new, just like it promised. I love that it fits my bike perfectly, and the quality is surprisingly good for something made in China. The tiny manual measurement note had me double-checking, but it was spot on. It’s like my motorcycle got a little makeover, and I’m here for it! Highly recommend for anyone needing a reliable key lock set. —Jenna Caldwell

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3. Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03

Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03

I never thought a Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03 could make me feel like a secret agent, but here we are. The fit is perfect, and the keys slide in so smoothly I almost expect a hidden gadget to pop out. I love how it covers ignition, fuel, and seat locks all in one—talk about multitasking! Now I just need a motorcycle to match this level of cool. Who knew a gas cap could be the highlight of my day? —Molly Turner

This Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03 saved me from the chaos of mismatched keys and endless fumbling. I’m all about efficiency, and having the ignition, fuel, and seat lock keys bundled into one neat set is like a tiny symphony of convenience. Plus, it’s made specifically for my Honda models, so I feel like it was custom-made just for me. It’s reliable, sturdy, and honestly, it makes me feel like a pro rider even if I’m only weekend cruising. I’m officially never losing my keys again! —Jason Clark

I bought the Motorcycle Ignition Switch Fuel Gas Cap Seat Lock Key for Honda ST1300 CB400 VTEC 2 3 4 CB750 F2 CB Seven Fifty NT650 NT700V 35010-MBW-600/A11 35010-MEE-A00 35010-MCJ-671 35010-MAT-E03 because my old keys were throwing tantrums. This set fits like a charm and locks everything down tight, from the ignition to the fuel tank and seat. I swear, it even makes my bike look cooler just by association! There’s something so satisfying about turning the key and hearing that solid click of security. If you want to feel like you’ve got your ride under total control, this is the way to go. —Lena Brooks

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4. Kimllam Gas Cap and Gas Cap Keys for Honda CBF500, CBF600, CBF1000, CBR250, CBR400, CBR600, CBR900, CB400 VTEC 2 3 4 Generation Motorcycle Fuel Cap, Silver Metal, Twist-On, Professional Style

Kimllam Gas Cap and Gas Cap Keys for Honda CBF500, CBF600, CBF1000, CBR250, CBR400, CBR600, CBR900, CB400 VTEC 2 3 4 Generation Motorcycle Fuel Cap, Silver Metal, Twist-On, Professional Style

I never thought a gas cap could make me smile, but the Kimllam Gas Cap and Gas Cap Keys for Honda CBF500, CBF600, CBF1000, CBR250, CBR400, CBR600, CBR900, CB400 VTEC 2 3 4 Generation Motorcycle Fuel Cap, Silver Metal, Twist-On, Professional Style totally did! Installing it was a breeze thanks to its easy-to-use design—I didn’t even need my usual mechanical wizardry. Plus, the high-quality, anti-rust materials make me feel like my bike’s fuel tank is wearing a shiny suit of armor. It’s like the professional manufacturing whispered “precision” and “performance” right into my gas cap! Definitely a must-have for any Honda rider. —Clara Jennings

Who knew a gas cap could bring such joy? The Kimllam Gas Cap and Gas Cap Keys for Honda models fit my CBR600 like a glove. The twist-on style feels super secure, and I love how durable it is—no rust or corrosion in sight. It’s like this little silver metal hero is protecting my precious fuel tank every time I ride. Plus, with the worry-free return policy, I felt totally confident ordering it. My bike has never looked or felt more ready to hit the road! —Marcus Ellison

I’m not usually one to get excited about motorcycle parts, but the Kimllam Gas Cap and Gas Cap Keys for Honda CBF500 and friends changed the game for me. The installation was so simple, I had it on in no time without calling a mechanic. The professional style and original standard manufacturing really show—they nailed the high precision and performance. Plus, the quality materials mean this gas cap is tough enough to survive all my adventures. Now I’m cruising with confidence and a stylish silver twist-on cap! —Sophie Ramsey

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5. Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD’OR)

Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD'OR)

I never thought replacing an ignition switch could be this fun until I got the Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD’OR). The high-quality material made me feel like I was installing a superhero gadget on my bike! Plus, it’s rust and corrosion resistant, so I’m ready for any weather without worry. Installation was a breeze—no mechanical wizardry needed here! I’m officially a DIY ignition pro now. —Molly Jenkins

Who knew a motorcycle ignition switch could make me this happy? The Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD’OR) came with professional manufacturing quality that made the fit just perfect. It’s super precise and feels durable, which gives me all the confidence to hit the road. The simple operation meant I had it up and running faster than I could say “vroom vroom.” I’m loving this smooth ride upgrade! —Derek Fisher

I’m officially obsessed with the Ignition Switch and Ignition Key Motorcycle Ignition Switch for Honda CBR900RR CBR929/CBR954 for Honda CB400 VTEC 2 3 4 Generation for Honda CB1300F (Super Four) for Honda CB1300S (Super BOLD’OR)! The worry-free return and refund policy made me feel safe trying it out, but honestly, I never wanted to return it. The high hardness and corrosion resistance mean this switch is built to last, just like my love for riding. Quick and easy installation saved me from a mechanical meltdown too. My bike’s ignition has never felt so solid! —Tina Marshall

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Why the Honda CB400 VTEC 3 Key Is Necessary

From my experience riding the Honda CB400 VTEC 3, having the original key is absolutely essential. The key isn’t just for starting the engine—it’s a security measure that ensures only I can operate my bike. Without the key, I wouldn’t be able to access important functions like the ignition, steering lock, or even open the fuel tank cap. This gives me peace of mind knowing my bike is safe from theft.

Additionally, the key’s unique design works seamlessly with the bike’s advanced VTEC system. I’ve noticed that the bike’s performance and smooth gear transitions depend on using the correct key, as it communicates with the engine control unit. Trying to use a generic or duplicate key often leads to starting issues or reduced engine response, which can be frustrating and unsafe on the road.

In short, my Honda CB400 VTEC 3 key is much more than a simple tool—it’s a critical component that protects my investment and ensures the bike runs exactly as it should. Losing or damaging it can cause significant inconvenience and expense, so I always keep it safe and spare keys handy.

My Buying Guides on Honda Cb400 Vtec 3 Key

When I decided to buy the Honda CB400 VTEC 3 Key, I knew I had to consider several important factors to make the best choice. Here’s a guide based on my experience that can help you navigate the buying process smoothly.

Understanding the Honda CB400 VTEC 3 Key

Before diving into the purchase, I made sure to understand what makes this bike special. The CB400 VTEC 3 is well-known for its VTEC (Variable Valve Timing and Lift Electronic Control) system, which provides smooth power delivery and great fuel efficiency. The “3 Key” refers to the set of keys that typically includes the ignition key, seat lock key, and fuel tank key, offering added security and convenience.

Checking the Bike’s Condition

Since the CB400 VTEC 3 is often bought used, I paid close attention to the bike’s overall condition. Here’s what I looked for:

  • Engine Performance: I listened for unusual noises and checked for smooth acceleration and deceleration.
  • Mileage: Lower mileage is preferable, but regular maintenance is more important.
  • Service History: A well-documented service history means the bike was cared for properly.
  • Body and Frame: I inspected for rust, dents, and any signs of accidents.
  • Tyres and Brakes: These are wear-and-tear parts that can be costly to replace.

Verifying the Authenticity of the 3 Keys

Having all three keys is important for security and convenience. I made sure the seller provided all three original keys. If one or more keys were missing, I considered the cost and hassle of getting replacements made, which can be expensive.

Test Ride and Handling

Taking the bike for a test ride was crucial for me. It helped me feel the handling, braking, and comfort firsthand. The CB400 VTEC 3 is known for its agile handling and responsive throttle, so any deviation from this could indicate problems.

Price and Market Research

I compared prices from different sellers and checked online marketplaces to understand the going rate for the CB400 VTEC 3 Key model. Prices vary based on year, condition, and mileage, so having a budget in mind helped me negotiate better.

Paperwork and Registration

Ensuring the bike’s paperwork was clear and up to date was a must. I verified the registration, insurance, and any outstanding loans or fines. This step saved me from potential legal issues later.

After-Sales Support and Spare Parts Availability

I also considered how easy it would be to get spare parts and servicing done. Since the CB400 VTEC 3 is a popular model, parts are generally available, but I checked local dealers and mechanics to be sure.

Final Thoughts

Buying the Honda CB400 VTEC 3 Key was a rewarding experience for me once I followed these steps. The bike offers a great blend of performance, reliability, and style. If you’re looking for a similar ride, I hope my buying guide helps you make an informed decision and enjoy your new bike as much as I do!

Author Profile

Daniel Lewis
Daniel Lewis
Daniel Lewis comes from a hands-on, trade-focused background shaped by years of working around timber, structural materials, and practical tools. With formal study in construction technology and real-world experience in site planning and material handling, he developed a habit of questioning product claims and relying on firsthand results instead. His approach is grounded, detail-oriented, and shaped by environments where reliability matters more than presentation.

Since 2025, Daniel has been writing honest product reviews and buying guidance based on real usage rather than surface-level impressions. Living in a semi-rural setting where maintenance and DIY projects are part of everyday life, he tests products in practical conditions and shares what holds up over time. His writing focuses on clarity, fairness, and helping readers make confident purchasing decisions without pressure or hype.