YAMAHA 1M2-85540-20-00 Cdi Box Ecu Ecm Ignition Brain

( Manufacturer Part Number: 1M2-85540-20-00 ), ( Part Type: Ecm Ignition Box Ecu ), ( Non-domestic Product: No ), ( Machine Type: Motorcycle, Dual Sport Motorcycle ), ( Color: Silver ), ( Compatible Model: It250, It 250 ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Unit Type: Unit ), ( Compatible Make: For Yamaha, Yamaha ), ( Surface Finish: Original ), ( Country/region Of Manufacture: Japan )

Review YAMAHA It Ecu Ecm Cdi Ignition Box Brain fits IT250 250 1977

Yamaha 1M2-85540-20-00 1977 IT250 250 ECU/ECM/CDI Ignition Box Brain

The Yamaha 1M2-85540-20-00 1977 IT250 250 ECU/ECM/CDI Ignition Box Brain is a remarkable piece of engineering, designed to optimize the performance and efficiency of your 1977 Yamaha IT250. This advanced ignition system box serves as the heart of your motorcycle's ignition system, regulating the spark that ignites the fuel in the engine's cylinders.

The ECU (Engine Control Unit) is responsible for managing the fuel injection and ignition, ensuring smooth and reliable engine operation. The ECM (Engine Control Module) is an integral part of the system, monitoring various engine parameters and adjusting the ECU settings accordingly to maintain optimal engine performance. The CDI (Capacitive Discharge Ignition) system is responsible for delivering high-voltage sparks to the spark plugs, which is essential for efficient combustion.

This ignition box is specifically designed for the Yamaha IT250, ensuring a perfect fit and seamless integration with your motorcycle's electrical system. It is built with high-quality components and advanced technology to deliver superior performance, reliability, and longevity.

Installing this ignition box can significantly improve the performance of your 1977 Yamaha IT250. It can enhance throttle response, increase power output, and improve fuel efficiency. It can also help to reduce emissions and improve the overall driveability of your motorcycle.

Whether you're a casual rider or a performance enthusiast, the Yamaha 1M2-85540-20-00 1977 IT250 250 ECU/ECM/CDI Ignition Box Brain is an excellent investment for your motorcycle. It's a high-quality, performance-enhancing component that's designed to deliver many years of reliable service. Upgrade your motorcycle today with this advanced ignition system box from Yamaha.

Analysis of Yamaha 1M2-85540-20-00 1977 IT250 ECU/ECM/CDI Ignition Box

1. Authenticity: This part is an original equipment manufacturer (OEM) component, ensuring compatibility and reliability with the 1977 Yamaha IT250.

2. Performance Enhancement: The ECU/ECM/CDI system can optimize the ignition timing, fuel injection, and other engine parameters, potentially improving the bike's performance and fuel efficiency.

3. Durability: As an OEM component, this part is designed to withstand the rigors of motorcycle use and should offer long-lasting performance.

4. Warranty: Buying from an authorized dealer might provide a warranty, offering protection against any manufacturing defects.

1. Cost: Original OEM parts tend to be more expensive compared to aftermarket alternatives.

2. Availability: Given its age, finding this specific part might be challenging, and it may take some time to source and receive.

3. Installation: Installing an ECU/ECM/CDI system requires technical knowledge and skills. If you're not confident in your abilities, it may be wise to hire a professional.

4. Potential Compatibility Issues: As this part is for a specific model and year, it may not be compatible with any modifications or upgrades made to the bike.

The Yamaha 1M2-85540-20-00 1977 IT250 ECU/ECM/CDI Ignition Box is an excellent choice for those seeking an authentic, high-quality, and performance-enhancing component for their vintage Yamaha IT250. However, its cost, availability, installation complexity, and potential compatibility issues should be carefully considered before making a purchase.

If you're confident in your technical abilities, have the funds, and are committed to restoring your 1977 Yamaha IT250 to its original glory, this OEM part could be the perfect choice for you. Alternatively, if budget or technical expertise is a concern, you might want to explore aftermarket alternatives or seek professional advice before making a decision.

Details:

BARGAINBIKES2011. But came off a 1977 YAMAHA IT250. Free shipping inside the USA, out of country buyers pay. THESE PARTS may or not fit 1977 YAMAHA IT250.

part #: 1m2855402000 prices

• $20.00-$598.50

specifications cyclevintagee:

• for models: It250, 250
• for makes: Yamaha
• for years: 1977
• mpn: 1m2-85540-20-00
• part type: Ecm Ignition Box Ecu
• non-domestic product: No
• machine type: Motorcycle, Dual Sport Motorcycle
• color: Silver
• compatible model: It250, It 250
• vintage part: Yes
• placement on vehicle: Front
• unit type: Unit
• compatible make: For Yamaha, Yamaha
• surface finish: Original
• country/region of manufacture: Japan

general cyclevintagee:

• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
• condition: Used

offer cyclevintagee:

• started: September 11, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• best offers: True

payments cyclevintagee:

• credit card: Discover
• other
• wallet: Apple-pay

seller cyclevintagee:

• # reviews: 9374
• city: Fallbrook, California
• rating: 100.0%

returns cyclevintagee:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

shipping cyclevintagee:

• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• transit: 5-12 Days
• cost: $0.00
• type: Fixed

Yamaha 1M2-85540-20-00 Is Similar To:

• 11445555 Yamaha Rubber Battery Box (25.9% similar) The sleeve set has been cleaned, inspected, and is in good overall used usable working condition. Fits yamaha XS850. Ships in a 7X7X6 and weighs 1 to 2 pounds. Hi, this battery sleeve was removed from a 1980 yamaha...(November 29th, 2017)
• 12v Cm11-50 Yamaha Ignition Coil With Bracket (35.3% similar) ...(December 16th, 2018)
• 169-81121-2-20-2 Daiichi Yamaha Ignition Points Replace (29.5% similar) 2 sets of part number M59 - replace yamaha fits YM2, YM2-C 305 cc and YDS-5 DS6-C 250 twins...(January 4th, 2019)
• 193-82510-10 Yamaha Nos Ignition Key Switch (32.5% similar) Up for offer is a new old stock ignition key switch your yamaha CS1E or YCS1. Approx shipping weight when boxed is 1LBS. A very rare part. Includes 2 matching keys. Part is in excellent shape...(September 26th, 2018)
• 1a0-21170-01-33 Yamaha Nos Battrey Box (21.4% similar) This is a new battery box for the yamaha RD400 no and some shelf wear little dirty dusty but nice part longer available from buy now save...(August 5th, 2018)
• 1lr-85540-20 Yamaha Genuine Nos Oem New Cdi Unit Assembly (32.1% similar) Vintage dirt and trail motorcycles. We search the planet for hard to find nos Kawasaki and yamaha parts. So you don't have...(March 14th, 2019)
• 214-21240-10-33 Yamaha Nos Battery Box (21.4% similar) I ship worldwide via us mail and will combine shipping whenever possible. Hi ak pr APO ap may be higher. Location: BM7-18E...(July 26th, 2018)
• 21v-21736-00-00 Yamaha Nos Oem Cdi Strap Band Yz It (28.8% similar) 1971 JT1 - frame JT1L 1972 JT2 JT2MX 1973 GT1 rear fender GMC RD60 1974 DT250A side cover DT360A GT80A Timex RD60A 1975 DT250B 250B c 400B DT400B GT80B GT80MXB RD60B 1976 DT250C DT400C GT80C Timex YZ250C electrical YZ250D e 1977 DT100D DT250D DT400D Timex LB80 3d YZ100D YZ100 f 1978 ...(August 24th, 2018)
• 2gv-82305-20-00 Yamaha Virago Ignitor Cdi Spark Control Box Ecu (40.9% similar) Used 2GV fitment: 1990 yamaha virago 535...(February 27th, 2018)
• 2j5-14453-00-00 Yamaha Air Box Intake Boot Yz (23.5% similar) Yamaha YZ80E YZ80F air box intake boot VAX ME vintage restoration motocross MC Eco aroma Z 80 e f 78 79...(June 3rd, 2018)
• 2l0-83568-a0 Yamaha Nos Pilot Light Box (30.1% similar) A very rare part. Part is in excellent shape. Approx shipping weight when boxed is 1LBS. Up for offer is a new old stock pilot light box your yamaha XS400 and 1979 RD400F...(January 15th, 2019)