SKU: 3646957909

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

Sale price$210.57 Regular price$233.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.4 ★★★★★
    Based on 1941 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    L
    Lu M.
    Louisville, US
    ★★★★★ 5
    Clean, comfortable staple for casual business wear
    Color: Black, Size: Medium
    Every wardrobe needs a sharp black button-down, and this JEMLDL Oxford shirt hits the nail on the head for versatile styling. The fabric has a nice, substantial weight to it—it's classic oxford cotton that feels durable but remains soft against the skin. The fit is tailored nicely without being a restrictive slim-fit, and the integrated back pleat gives your shoulders plenty of room to move without the shirt pulling untucked. It features a traditional chest pocket and a crisp button-down collar that holds its shape under a blazer or worn casually open over a white tee. It washes up great and doesn't shrink up into a mini-shirt after a cycle in the dryer. Pros: Heavy-duty, high-quality oxford cotton weave. Back pleat offers excellent shoulder mobility for active movement. Versatile styling that dresses up or down effortlessly. Cons: Like all quality cotton oxfords, it requires a quick iron or steam to look crisp. Fits true to size, but has zero elastane stretch in the fabric.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 3, 2026
    K
    Verified Purchase
    Kindle Customer
    Houston, US
    ★★★★★ 4
    Decent quality for the price
    Color: Sky Blue, Size: XX-Large
    Fit well
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    K
    Kay
    Omaha, US
    ★★★★★ 5
    Nice Quality, Great Fit, and Very Comfortable!
    Color: White, Size: XX-Large, Color: White, Size: XX-Large
    I ordered this shirt for my husband, and he is very pleased with it. He says it is a really nice shirt that fits true to size and looks sharp. The fabric has a great, quality weight to it that gives it a structured appearance, making it versatile enough to easily transition from a casual day out to a more business casual setting at work. The biggest selling point for him is how comfortable it is. He mentioned that it feels great against the skin and offers excellent mobility throughout the day, thanks in large part to the classic back pleat design. The chest pocket is a nice, practical addition, and the classic Oxford style looks great right out of the dryer. It is a well made, reliable closet staple that he is already getting a lot of use out of, and we highly recommend it!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2026
    E
    erika1979
    West Palm Beach, US
    ★★★★★ 5
    An excellent button down that fits well, looks great, and feels as good as it looks.
    Color: Navy Blue, Size: X-Large
    From the office to dinner and the to church on Sunday, this is a perfect shirt for any situation. It even looks great worn open over a t-shirt with a pair of jeans and boots or tennis shoes. Who said a nice button down needs slacks and dress shoes? It is a cotton?polyester blend so it is lighter weight than a standard cotton oxford. It also isn't as crisp or harsh and it doesn't wrinkle nearly as bad either. The sleeves are a standard long sleeve but they cuff well. The shirt looks great when cuffed too so that helps when it's hot and humid. There isn't really any stretch to this shirt but that isn't a problem becuase it is perfectly true to size. Just follow the size chart and fit is near guaranteed. For only 20 bucks, basically, (22 to be exact), this is a great choice for any situation when a nicer than completely casual look is desired.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 26, 2026
    I
    IvyLeagues
    Alexandria, US
    ★★★★★ 5
    Husband approved
    Color: Khaki, Size: X-Large
    I got this one for my husband too, and it is a really nice shirt. It has that classic Oxford look that works for a lot of situations, whether he is wearing it for work, dinner, church, or just trying to look a little more put together. The fabric feels comfortable but still has enough structure that it does not look sloppy. It is not stiff or scratchy, and the fit looks good on him without being too tight. I also like that it holds its shape well and does not seem like it will need a ton of fussing to look decent after washing. The style is simple in the best way. It pairs easily with jeans, chinos, or dress pants, so it is one of those shirts that can go a bunch of different directions depending on what he wears it with. Another solid husband shirt. Comfortable, clean-looking, easy to style, and definitely something he will actually wear.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 8, 2026

    recommand products