[Recommended Fix] Yamaha Jupiter MX King 150 won’t crank - all signs point to missing code

4598 views - Last reply: September 06, 2024
This topic is closed for new replies.
Hotrod
Member since October 2022 • 68 posts

How to find the key code to program keys for my Yamaha Jupiter MX King 150?

Posted on September 06, 2024
Adminbot
Staff Member • 1094 posts

Hello! We've developed a VIN-based tool to help you get your key code for the Yamaha Jupiter MX King 150. Check it out here: VIN Key Code Generator.

Posted on September 07, 2024

Replies (5)

Darkhorse
Member • 129 posts

I’m in the same boat with my Yamaha Jupiter MX King 150. This looks promising.

September 07, 2024 Reply
Silverfox
Member • 37 posts

I tried this with my Yamaha Jupiter MX King 150 but still no luck. Any suggestions?

September 08, 2024 Reply
Jazzmann
Member • 28 posts

Crossing my fingers—really need this for my Yamaha Jupiter MX King 150!

September 09, 2024 Reply
Quantumfizz
Member • 149 posts

Trying everything I can to get the key code for my Yamaha Jupiter MX King 150.

September 10, 2024 Reply
Crazycat
Member • 23 posts

My Yamaha Jupiter MX King 150 won’t budge without the code. Hoping this helps.

September 11, 2024 Reply

Check the news !

Supercar Sunday Gathering
🚙 Local Meetup: Supercar Sunday Gathering
Show off your ride and meet fellow car lovers

🏁 Where: Regional Airport (static display area)
📆 When: August 11 @ 11AM-5PM

Event features:
Burnout Contest | DJ Music | Vendor Booths

⚙️ Forum Members: Who's going? Sound off in the comments! ✨

🧰 Suspension Setup Clinic

👨‍🏫 Instructors:
• Suspension Guru David Klein
• Paint Specialist Sarah Chen

🔌 Hands-On Activities:
• Roll cage installation demo
• 6-hour intensive training
• Personal coaching

📅 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🚙 August 11, 2026 at 9:00 AM (6-hour)

✨ Bring your own project - we'll help you work on it!

Workshop: Suspension Setup Clinic
Dyno Tuning Intensive Course

🚀 Dyno Tuning Intensive Course

⚙️ Instructor: Engine Builder Mike O'Connor (1000+ HP builds)

📊 Workshop Includes:
• Hands-on ECU flashing sessions
• 4-hour intensive hands-on training
• Traction control tuning | Launch control setup

🔩 Bonus: Free dyno pull for first 10 signups

🏎️ Next Session: July 29, 2026 at 3:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Remember: More power means you'll need better brakes and tires

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

Common questions about key programming, fob issues, and replacement options

Security Systems
A flashing security light often indicates an immobilizer issue. Solid light suggests the system is armed but not recognizing your key. Causes: faulty key chip, damaged antenna ring, low battery, or system needs reprogramming.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Programming
Common reasons: wrong key type for your vehicle, anti-theft system needs reset, low car battery voltage during programming, or the key isn't properly synced. Some cars also have programming limits (only 2-4 keys can be registered).
Key Tip: Some locksmiths offer mobile key programming services
Lost Keys
Locksmiths or dealers can: 1) Decode your door or ignition lock to determine key cuts 2) Access your car's key code through manufacturer databases (with proof of ownership) 3) Program new transponder keys using diagnostic equipment.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Programming
Some vehicles allow DIY key programming using specific sequences (like turning ignition on/off with original keys). However, most modern cars require specialized equipment only locksmiths or dealers have. Check your owner's manual for your specific model.
Cost & Options
You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
Key Fact: Key programming typically takes 15-30 minutes for professionals

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Jul 24, 2026
Professional car key programming for most makes/models. We come to you! Transponder keys, fobs, and smart keys. Same-day service available. All work guaranteed.
Call: 487-691-4810
Key Fob Repair & Battery Replacement
$25+
Posted: Jul 17, 2026
Fob not working? We fix broken buttons, replace batteries, and resync to your vehicle. Most repairs done while you wait. Water damage specialists available.
Call: 498-861-7246
Smart Key Programming Special
$150
Posted: Jul 24, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 262-554-7661
Car Key Extraction Service
$45+
Posted: Jul 21, 2026
Broken key stuck in ignition or door? We can remove it without damage and make new keys same day. Emergency service available 24/7 for lockouts.
Call: 856-830-8982
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
Jul 28, 2026

Lost Key Solution Roadshow

by Immobilizer Experts
Hands-on experience with the newest transponder key cloning and programming equipment
Seminar
Aug 23, 2026

Lost Key Solution Roadshow

by Fob Fixers
In-depth class covering push-to-start systems and proximity key programming techniques
Seminar
Aug 22, 2026

Anti-Theft System Demonstration

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
Aug 9, 2026

Dealer-Level Programming Workshop

by VIN Decoder Pros
Learn dealer-level programming techniques normally only available at franchise shops

Need immediate service? Call our 24/7 hotline: 1-800-KEY-HELP

Want to list your key service? Join our provider network

Last posts on the forum