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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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 261 reviews
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    Verified Purchase
    Kathryn Eberly
    West Palm Beach, US
    ★★★★★ 5
    Same sizes but different fits
    Color: Light Green-new, Size: 32W x 32L
    Great color and good fit. Feels more like a Jean. I bought two pair-exact same size. 32w x 32 length. Light green was exactly what I wanted. The maroon red was more like a jegging than jeans. Not what I wanted. Supposedly same style - so just be aware fits were completely different!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 1, 2026
    B
    Verified Purchase
    Bryan Brook
    Port Orchard, US
    ★★★★★ 4
    Good product with quality-control issues
    Color: Dark Grey, Size: 31W x 31L
    I really like these jeans. I own them in almost every color they offer, but the manufacturing consistency is hit or miss. The latest pair I bought has a much smaller pocket opening than the others. I also always order the same size (31×31), but when I got the red pair they were ridiculously long, more like a 31×36. And the first khaki pair I bought had pockets about half as deep as the rest. My iPhone would literally stick out of them. That said, for the price and overall look, they’re still a solid buy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 15, 2026
    G
    Verified Purchase
    George E.M.Yates
    Massapequa, US
    ★★★★★ 5
    Comfortable
    Color: Deep Brown, Size: 34W x 32L
    Nicely fit.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2026
    S
    Verified Purchase
    scott
    Pawtucket, US
    ★★★★★ 5
    Just buy. You will want more in different colors
    Color: Lemon Yellow, Size: 40W x 32L
    Excellent pants. Super comfy
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    A
    Verified Purchase
    Adan Jarina
    Fort Morgan, US
    ★★★★★ 5
    HIGHLY RECOMMENDED!
    Color: Deep Brown, Size: 34W x 32L
    It fits so well and true to size. The quality of the fabric is commendable. I will surely buy again.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026

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