SKU: 3646957909

MSD CDI ECU ENHANCER IGNITION, 650 701 YAMAHA SUPERJET JS650 JS701 4253

Sale price$210.57 Regular price$233.97
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

MSD CDI ECU ENHANCER IGNITION, 650 701 YAMAHA SUPERJET JS650 JS701 4253Overview: If you own a Yamaha with a 650 or 701 engine, this Enhancer is a necessity! The Enhancer produces a powerful spark with increased spark duration. Not only does the improved spark energy boost power, but this Enhancer features a more aggressive timing curve for even more power to get you going! At lower rpm you'll notice incredible acceleration and throttle response due to advancing the timing. Then as the rpm increases, the timing is

Overview:

If you own a Yamaha with a 650 or 701 engine, this Enhancer is a necessity! The Enhancer produces a powerful spark with increased spark duration. Not only does the improved spark energy boost power, but this Enhancer features a more aggressive timing curve for even more power to get you going! At lower rpm you'll notice incredible acceleration and throttle response due to advancing the timing. Then as the rpm increases, the timing is retarded to the factory setting to prevent detonation and engine damage. For racers, there is also a lower rpm limit that you can activate for quick and consistent holeshots. By activating a switch mounted on the handlebar the rpm will limit at approximately 3,000 rpm. The instant the button is released, the rpm revs up just as normal and you rocket off. Everything you need to install the Yamaha Enhancer is supplied along with factory connectors for a direct plug-in installation!

Features:

    Application:

    Year Make Model Submodel Engine Size
    1990 - 1993 Yamaha SJ650 Super Jet /

    Specs:

    Brand MSD
    Emission Code 4
    Maximum Voltage 30 KV
    Primary Resistance 0.2 Ohms
    Product Type Ignition Box
    Secondary Resistance Less than 2000 OHMS
    Turns Ratio 2.91736111111111
    Warning California Proposition 65
    Warranty Limited 1 Year Warranty
    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: 3646957909

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    4.7 ★★★★★
    Based on 14 reviews
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    B
    Verified Purchase
    Bob P.
    Birmingham, US
    ★★★★★ 5
    Perfect fit
    This filter was a perfect fit on my 2024. CR V. I took the the old one out and this one just fell into place. I is good quality and was equal to or better than the Honda OEM
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 1, 2026
    N
    Verified Purchase
    Nicole Beth-Manning
    Houston, US
    ★★★★★ 5
    Looks good and fits
    It looks good and fits perfectly; other than that, I have no idea how to tell if it's better or worse than anything else.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 29, 2026
    W
    Verified Purchase
    WER
    Omaha, US
    ★★★★★ 5
    Happy with purchase
    Works as well at the fraction of the price. Very happy with the purchase. Very easy to install
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 11, 2025
    A
    Verified Purchase
    Amazon Customer
    Belleville, US
    ★★★★★ 5
    Great OEM replacement at hlaf the cost
    Looks exactly like the OEM filter a quality product. it is the same size fit and performance. Filter replacement is fast 10 min tops, it's crazy how much a dealer charges to replace it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 15, 2025
    E
    Verified Purchase
    Elliot
    Port Orchard, US
    ★★★★★ 5
    As good as Honda OEM
    Perfect fit. Lasts as long as OEM for 25% of the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 27, 2025

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