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MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253

MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253
MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253
$677.99 ea
NEWARRIVING SOONEstimated Ship Date 07/28/2025 (If Ordered Today)3 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/09/2025
Model: 4017237
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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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:
  • High output sparks improve throttle response, starting and top end power.
  • Factory style connectors for a direct plug-in installation.
  • Bolt in place of the factory ignition.
About MSD Ignition

Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you  need to meet your performance goals. We continue to innovate and invent components and technology that deliver  performance and reliability with products that are easy to use and install. 

Over the course of 40-plus years, MSD Performance has been driving the development of innovative components  that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to  top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in  motorsports.

MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. The line of MSD 6-Series Ignitions are the most popular aftermarket ignitions in the world due to our race-proven performance on the track and our reliability on the street!

Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power  and endurance. 

Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators  ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value.

Downloads:

Download Name File Size
4253.pdf330.26KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Fitment Notes
Yamaha SJ650 Super Jet Base 1990 - 1993 EnhancerΓäó Ignition Control Module; Boosts Spark Power wIncreased Duration; More Aggressive Timing Curve; Direct Factory Plug-In And Mounting; Red;

Specifications:

Emission Code 4
Maximum Voltage 30 KV
Part Type Ignition Control Module
Primary Resistance 0.2 Ohms
Product Type Ignition Box
Proposition 65 www.P65Warnings.ca.gov
Secondary Resistance Less than 2000 ohms
Turns Ratio 70:1
Warranty Limited 1 Year Warranty

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MSD 1990-1993 Yamaha SJ650 Super Jet Enhancer Ignition, 650-701 Yamaha 4253: