S&S Cycle

HI-4N PERFORMANCE IGNITION FITMENT • 1970–1984 big twins • 1971–1985 Ironhead Sportster® Models FEATURES AND BENEFITS • One piece machined aluminum housing reduces vibration and improves heat dissipation and reliability • Improved kick start algorithm designed to start as easily as points • BCD switches with solid detent and legible marking allow easy and repeatable adjustments of mode, advance rate, and rev limit • Single-fire and dual-fire function built into a single module • Flexible wiring harness makes installation easier • Initial timing marks allow precise adjustment and reinstallation • Sensor covers integrated into housing to provide protection during installation

550-0502

HI-4N PERFORMANCE IGNITION Fitment

Part #

550-0501

Ignition only

Kit Includes S&S® HI-4N Ignition, Single-Fire Coil, and 8.5mm double silicone, premium quality spark plug wires

550-0502

SUPER STOCK ™ IGNITIONS

FITMENT • S&S® SH-Series • S&S KN-Series • S&S P-Series FEATURES & BENEFITS

55-1352

• Electric-start mode allows the pre-ignition cranking to be set anywhere from 1 to 4 engine revolutions (only available with current modules—earlier modules cannot be updated) • Pre-programmed ignitions are custom tailored for a specific S&S engine—no need for adjustments • Single fire operation—requires a single fire coil for single spark plug applications • Dual plugged applications require a pair of two tower coils or a single four tower coil

• Minimum 3.0Ω primary resistance • Overload and short circuit protected • VOES switches to less aggressive curve under load or hard acceleration • 6300 rpm rev-limiter • 24-hour break-in rev-limiter—prevents damage during break-in • Data logging diagnostic capabilities

SUPER STOCK® IGNITION MODULE AND KITS Engine Kit Part #

SUPER STOCK® IGNITION KIT REPLACEMENT PARTS Description Part # Pick-up Cup and Mounting Screw 55-1247 ± Connector Kit USA 1 55-1249 VOES Switch with Hardware USA 1 55-1248

Module Part #

55-1350 55-1351 55-1352

55-1340 55-1341 55-1342 55-1343 106-3200

SH80

SH93/P93

SH93H/P93H/P74

–

SH103

19-0395 19-0398

each

106-3201

KN93/KN74

VOES Hose, 9" USA

5 pack

16-0136-S 50-8124-S

VOES Manifold Fitting

VOES Hose Tee

NOTES: S&S Super Stock ignition systems are available in complete ignition kits and as replacement modules. S&S single fire ignition coils are available separately. Keep in mind that the curves are preset for a specific S&S engine, and that modules intended for one engine may not yield optimum results when used on another configuration. Generator style engines require reverse timer gears and a special timer, designed to accept an electronic ignition. S&S offers two beautiful billet timers for this application.

Optional Parts S&S Single Fire Coil (3.0Ω)

55-1571

± WARNING: Cancer and Reproductive Harm–www.P65Warnings.ca.gov

170 S&S Vintage 1926–1999 Order 608-627-1497