FUEL INJECTION INTAKE 1677 S&S VARIABLE FUEL INJECTION MODULE PUTTING TOGETHER AN S&S SINGLE BORE FUEL INJECTION SYSTEM You will need to select one kit in each step to make up a complete system. STEP 1. SELECT AN S&S VFI MODULE S elect the correct VFI module based on your existing stock fuel injection system or the system you plan to use in a custom application. If you already have an S&S VFI module, go to the next step. Real tuneability for Fuel Injected Engines! For many years, riders with carburet‑ ed engines have had the luxury of easy fine‑tuning. By changing carburetor jets they could "dial in" their engines to achieve maximum performance and to compensate for engine modifications. Fuel injection however, has presented a tuning obstacle for riders who wished to make performance modifications to their engines. With the stock fuel injection module, even a minor change like a differ‑ ent exhaust system can cause an engine to run erratically and could potentially cause engine damage. The S&S Variable Fuel Injection (VFI) module provides the abil‑ ity to tune the fuel injection and ignition systems to maximize the performance of any fuel injected engine. While the S&S VFI system will give excellent results on stock engines, its tuning flexibility is es‑ sential when engine modifications have been made. Changes to the engine such as cams, exhaust pipes, headwork, increased displacement, or all of the above, neces‑ sitate changes in the fuel injection maps. The S&S VFI fuel injection module allows the tuner to realize the full benefits of engine modifications through correct tun‑ ing. Re‑tuning the system with the S&S VFI module will result in improved start‑ ing, better driveability, and more power. • Unlimited Programmability – The Pro‑ Tune II software allows the creation of maps for Custom engine configurations for which S&S has not supplied a map • Dual closed loop capability when used with stock O2 sensors or the S&S Closed Loop sensor kit • Engine overheat protection • Manual tuning requires ProTune II software in conjunction with an eddy current or other steady state capable dy‑ namometer and an exhaust gas analyzer or air/fuel ratio meter for manual tuning Note : Due to the extreme range of con‑ trol offered by the S&S VFI modules, they are only available from S&S Certified VFI Tuning Centers. Check the dealer locator on the Zodiac website at www.zodiac.nl to find a Tuning Center near you. 750859 VFI module for 2001‑2010 Softail, 2004‑2011 Dyna and 2002‑2007 Touring Upgrade kits All current S&S VFI modules are closed loop compatible and with these S&S VFI Closed Loop Sensor Kits, all VFI models, also pre 2006, can benefit from closed loop tuning. 740459 Fits 1999 thru 2000 models 740460 Fits 2001 thru 2005 models Note: If you plan to use another programmable fuel injection module, it is best to consult the manufacturer to be certain that it is compatible with the S&S single bore system and has enough tuning capability for your engine configuration. 750859 VFI module for 2001‑2010 Softail, 2004‑2011 Dyna and 2002‑2007 Touring STEP 2. SELECT A THROTTLE BODY KIT Select the correct S&S Single Bore throttle body kit based on your existing stock fuel injection system or the system you plan to use in a custom application. STEP 3. SELECT A MANIFOLD Select the correct manifold to fit your engine from the manifold chart. Note: Manifolds fit both 52mm and 58mm throttle bodies. 2006 thru 2017 Twin Cam with cable throttle and Stock or S&S heads 751567 88, 95, 96, 103 & 106CI, cylinder length 4.937" 751568 124CI HSU Kit, except 2008‑up Touring models, cylinder length 5.013" 2008 thru 2016 Touring Models with S&S heads 751567 124CI Hot Set Up Kit, cylinder length 5.013" 1999 thru 2005 Big Twins with Stock or S&S heads 751569 88, 95, 103 & 106CI, cylinder length 4.937" 751568 124CI Hot Set Up Kit, cylinder length 5.013" 1995 thru 1999 Big Twins 751569 80, 89 & 96CI, cylinder length 5.550" 751570 S&S V107T, cylinder length 4.763" S&S 4 1/8" bore V‑Series and T‑Series Engines 751570 111CI, cylinder length 4.763" 751568 124CI, cylinder length 5.013" S&S Variable Fuel Injection (VFI) Module Features: • Easy Installation – Module replaces stock unit and plugs into the stock wir‑ ing harness • Easy Programming – Existing maps sup‑ plied by S&S can be loaded by anyone with a PC • Flexible – Maps may be easily optimized to accommodate variations in individual engines. Easy Tune software is included with the module • Altitude Compensated – Automatically adjusts for altitude variations • Live Tuning – Make changes to maps while the engine is running • Self Diagnostics and Actuator test func‑ tions • Engine light can be programmed to function as a shift light Note: Not compatible with 1995‑1997 cruise control system. S&S 52mm Single Bore EFI Throttle Body/Fuel Rail Kits 751562 Fits 2002 thru Big Twin and 2001 Softail Models 751563 Fits 2006 to present Big Twin except 2008‑up Touring models S&S 58mm Single Bore EFI Throttle Body/Fuel Rail Kits 751565 Fits 2002 thru Big Twin and 2001 Softail Models 751566 Fits 2006 to present Big Twin except 2008‑up Touring models www.zodiac.nl 06-027
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