(Ȧ*ȡ1ȝ(Ȥ(ț7Ȫ,ț6 SPARK PLUGS HELMETS & AUDIO 30761 E3 DIAMONDFIRE SPARK PLUGS SEAT EXHAUST ELECTRIC & LIGHT ENGINE ELECTRICS INTAKE ENGINE Fits 1971-1985 Sportster XL, XLCH & XLS 1000 757641 E3.32 spark plug, each (OEM 31629-78) Fits 1983-1985 XR 1000, 1975-1984 Shovelhead, 1984-2000 Evolution Big Twin, Ironhead Sportster and S&S SH Series, S&S P-Series, S&S KN-Series, S&S 3 5/8" bore and S&S 4" bore engines 757642 E3.34 spark plug, each (OEM 32342-04) Fits Buell 1995-2002 Thunderbolt, 1997-2002 Cyclone M2, 2006-2010 Lightning, 2006-2010 Ulysess, 2008-2010 1125R, 1986-2022 Evolution Sportster XL and XR, 1999-2017 Twin Cam, 2002-2017 V-Rod, S&S X-Wedge, S&S 4 1/8" bore engines 757643 E3.36 spark plug, each (OEM 32362-04) Fits 2015-2022 XG500 & XG750 Street, 2017 to present Milwaukee Eight Touring & Trike and 2018 to present Milwaukee Eight Softail 757644 E3.39 spark plug, each (OEM 31600012) 1399 AIR COOLED SPARK PLUGS FOR VINTAGE HARLEYS PRIMARY & CLUTCH TRANSMISSION GASKET & SEALS FINAL DRIVE WHEELS & TIRES BRAKE HANDLEBAR, HAND CONTROLS & MIRRORS CONTROL CABLES & HYDRAULIC LINES FOOT CONTROLS FRONT FORKS The E3 unique ground electrode incorporates the combined benefits of several known performance plug types as well as new science based upon years of spark plug research. The three main performance components that determine how the E3 DiamondFIRE configuration works are: • Open Ground Electrode Design This mimics surface gap spark plugs like the type used in rotary engines which directs the flame kernel to the piston more directly than traditional J-wire designs. This design reduces the travel time from the spark zone to the chamber containing the compressed gases. The opened section at the top of the electrode avoids the creation of the doughnut shaped flame kernel known from standard plugs. Given the short amount of time available to get combustion started, the faster you can direct the flame to the area above the piston, the better the burn. • Forward Projection into Spark Zone With retracted plug designs, the generated spark lies against the top of the combustion chamber surface. The E3 ground electrode is designed to project farther forward into the combustion chamber. This brings the spark zone closer to areas of probable good air-fuel mixture. The outward projection also creates beneficial "micro-aerodynamics" within the spark zone. Since the initial combustion wave leaves the spark area at supersonic speeds, the elevated edge of the E3 electrode provides somewhat of a chimney effect as the next air-fuel mixture enters the spark zone. • Edge-to-Edge Spark Discharge The strongest part of the E3 electrode design is the forced Edge-to-Edge spark discharge, which was proven to be the best way to direct a spark as it leaves the electrode's surface. Since the spark itself occurs only when an avalanche of electrons migrates from the two electrodes (cathode to anode), sharp edges are better at initiating migrations, and accelerated electrons collide inside the spark zone. M18x1.5 sparkplugs, fits all Harley singles 1926-1934, all 45CI models, all Sidevalve Big Twin and Knucklehead. Beck spark plugs show the Beck logo and the heat range "3", Globe style plugs have no markings except the heat range "3". Plugs must be gapped to 0.025" (0.635mm) 780009 Set of 2 sparkplugs "Beck No.3", Samwel (OEM 37-09C, 32302-09, 32303-47) 789603 Set of 2 sparkplugs "Globe No.3", V-Twin Mfg. (OEM 37-09C, 32302-09, 32303-47) FRAME & REAR SUSPENSION FENDER & STRUTS GAS & OIL TANK GAUGES & DASHES OIL, OIL FILTERS & OIL COOLERS HARDWARE WINDSHIELD LUGGAGE Harley Standard 03-apr 4R5 5A6A 5R6A 5RL 6R7 6R12 10R12A - - RG6HCC - TOOLS & CHEMICALS Harley Gold - 4R5G - 5R6AG - - 6R12G 10R12AG - - - - Harley Platinum - XL10S - 5R6APP - - - 10R12APP - - - - Screamin' Eagle - 2413 - EVS13S - - EX12S - - - - - Accel Standard 2401 - 2403A 2410A 2417 - 2418 - - - - - Accel Platinum - - 2403P 2410P 2417P - 2418P - - - - - Champion Standard - RL82YC RN13LYC RN12YC RN12YC RN7YC RA8HC RAX94YC - RA6HC RG6HCC RN11YC4 Brisk Standard - NR14YC - LR17YC-1 LR17YC-1 LR14YC BR15YC - - BR14YC - LR17YC-1 Brisk Silver - - - LR17YS LR17YS - B12S - LR14YS - - LR17YS Nology Silver B2S - L7YS L7YS L7YS - B2S - L4YS - - L7YS E3 Diamond FIRE - E3.32 E3.34 E3.34 E3.34 E3.34 E3.36 - - E3.36 E3.39 - TECH TIPS & CROSS REF OEM>ZPN ALPHABETICAL INDEX 05-076
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