4-speed N1 Instructons
Contents
1. Factory Service Manual 2 Remove the 12 screws securing the top cover to the transmission 2 of these screws are about 2 in length located next to the ratchet assembly NOTICE THAT THE SCREW NEAREST TO THE DOWEL PIN ON THE RIGHT SIDE OF THE TRANSMISSION IS VENTED THIS SCREW MUST BE INSTALLED IN THE SAME POSITION DURING ASSEMBLY IF NOT TRANSMISSION OIL MAY BE FORCED OUT INTO THE CLUTCH THE VENTED SCREW RELIEVES GEAR BOX PRESSURE DURING HEAT EXPANSION FIGURE 2 CAM FOLLOWER 3 Disassemble the top cover per your Factory Service Manual 4 Clean all parts except shift shaft shifter gear and drum using grease solvent or equivalent You will not be reusing the old shaft gear and drum Polish both sides of the detent cam follower with a scotch bright pad or equivalent and a hand held drill cordless preferred see Figure 2 this will aid in smooth shifting 5 Inspect fitment of new Ratchet Shaft pn 160N1 4 in the top cover bushing per your Factory Service Manual replace bushing if necessary reference Figure 3 6 Inspect all components per your Factory Service Manual and replace worn or out of specification parts if necessary inn 8 FIGURE 4 SHAFT GEAR ALIGNMENT INSTALLATION IT IS NECESSARY TO TIME THE RATCHET SHAFT TO THE RATCHET GEAR AND THE RATCHET GEAR TO THE SHIFT DRUM IF THIS IS NOT DONE CORRECTLY YOU WILL NOT BE ABLE TO SHIFT INTO ALL GEARS 1 Re using the ratchet gear spring install2. T e 1952 79 4 Speed Ratchet Style Top Covers TOOLS REQUIRED e Torque Wrench reads both in lbs and ft lbs e Common Hand Tools Allen Wrenches Sockets Snap Ring Pliers Etc e Fork Shifter Gauge o H D P N 96384 39 o JIMS P N 16 0641 SPECIFICATIONS e TRANSMISSION FLUID CAPACITY 20 22 fluid oz BAKER Recommends spectro Heavy Duty Platinum 6 Speed Transmission Oil P N BD 75140 e SHIFT DRUM END PLAY 0005 0065 e 1 AND 2 GEAR SHIFT FORK DOG TOOTH GAP CLEARANCE 080 090 Both Sides e 3 AND 4 GEAR SHIFT FORK DOG TOOTH GAP CLEARANCE 100 110 Both Sides PAGE 2 OVERVIEW SPECIFICATIONS V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT TABLE OF CONTENTS 2 Overview 3 Table Of Contents 4 Included Parts Breakdown Figure 1 and Legend 5 Prep and Installation 6 Installation Continued 7 Terms 8 Disclaimer PAGE 3 TABLE OF CONTENTS V2 21010 4 SPEED N1 SHIFT DRUM KIT DETAIL VIEW FIGURE 1 ITEM OTY P N DESCRIPTION 1 2 PAPZO606P10 Teflon Bushings Shift Drum 2 1 127SN1 4 N1 4 Speed Shift Drum 3 1 156 4GAS Gasket Top Cover 4 1 9R100PCOOP Cotter Pin 3 32 x 1 000 5 1 138N1 4 N1 Ratchet Gear 6 1 155 4GAS Gasket Backing Plate 7 1 160N1 4 N1 Ratchet Shaft 8 1 158 4GAS Gasket Ratchet Cover PAGE 4 EXPLODED VIEW LEGEND V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT PREPARATION 1 Remove the transmission from the motorcycle chassis per your
3. V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT PN 4 155N1 K N1 Shift Drum Kit For Ratchet Style Top Covers DRIVETRAIN PREMIUM DRIVETRAIN INNOVATIONS FOR AMERICAN MOTORCYCLES PAGE 1 COVER V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT OVERVIEW FEATURES Tired of stalling your jockey shift bike while trying to find neutral Just imagine as you roll up to the stoplight you tap all the way forward with your left hand and you are guaranteed neutral because it is the last stop on the shift pattern Little Suzie notices your skill in negotiating your bike to a seamless stop and decides to hop on and leave her boyfriend The BAKER N1 Shift Drum Kit was designed for the jockey shifter in mind The kit comes with everything you would need to change your stock shifting 4 Speed into a jockey hand shift bike does not come with a jockey shift lever SHIFT PATTERN N1 Drums were originally developed to prevent miss shifts between 1st and 2 by positioning neutral at the bottom under 1st This drag racer trick also eliminates all room for error in finding neutral on a jockey shift bike The N1 Shift Drum Pattern is N 1 2 3 4 with neutral being in the most forward position when using a hand shift lever If you are using this kit on forward controls bottom pull FL models the shift pattern would be reversed reverse shift pattern 4 3 2 1 N All the way up on the shift lever would be neutral and all the way down would be 4 gear FITMEN
4. deemed necessary for BAKER to make an evaluation to determine whether the transmission assembly or transmission kit is defective the entire transmission assembly whether originally purchased as an assembly or kit must be properly packaged and returned prepaid to BAKER with a copy of the original invoice of purchase If after an evaluation has been made by BAKER and a defect in materials and or workmanship is found BAKER will at BAKER option repair or replace the defective part of the assembly Warranty card must be returned within 45 days of purchase to be valid ADDITIONAL WARRANTY PROVISIONS This limited warranty does not cover labor or other costs or expenses incidental to the repair and or replacement of BAKER products This warranty does not apply if one or more of the following situations is judged by BAKER to be relevant improper installation accident modification including but not limited to use of unauthorized parts racing high performance application mishandling misapplication neglect including but not limited to improper maintenance or improper repair BAKER shall not be liable for any consequential or incidental damages arising out of or in connection with a BAKER transmission assembly transmission kit swingarm fender component or part Consequential damages shall include without limitation loss of use income or profit or losses sustained as the result of injury including death to any per
5. e top cover and install the Adapter backing Plate per your Factory Service Manual 6 Time the Ratchet Shaft to the Backing Plate following your Factory Service Manual making sure that the timing mark notch on the backing plate aligns exactly between the two shifter teeth while in gear Figure 8 Tighten screw with washer to 6 9 ft lbs 100 110 in lbs 7 Following your Factory Service Manual reinstall all ratchet springs carrier pawls etc along with the supplied Ratchet Cover Gasket pn 158 4GAS Use Blue Loctite on all top cover screws tighten per your Factory Service Manual 8 Install dust cover shield and lever per your Factory Service Manual 9 Check the shift fork dog tooth gap by using the Fork Shifter Gauge H D P N 96384 39 or equivalent following your Factory Service Manual Shim shift forks if necessary to get proper dog tooth gaps following your Factory Service Manual YOU MUST CHECK SHIFT FORK DOG TOOTH Pa GAP BY USING THE FORK SHIFTER GAUGE FAILURE TO CHECK SHIM SHIFT FORKS TO GET PROPER TOOTH GAP COULD RESULT IN SEVERE CN wi INJURY OR EVEN DEATH FIGURE 8 BACKING PLATE TIMING m r F i d F 10 Reinstall your top cover assembly using the supplied top cover gasket pn 156 4GAS and using Blue Loctite on the top cover screws Install per your Factory Service Manual making sure that the Vented Screw removed 2 step under Prep is reinstalled in it original position 11 While the transmission i
6. s still on the bench do a shift check through all the gears to make sure that it is functioning properly 12 Reinstall your transmission assembly following your Factory Service Manual 13 Installation is complete make sure to add the proper fluids following your Factory Service Manual and check fluid levels after initial test ride PAGE 6 INSTALLATION V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT SPECIALORDERS A minimum 500 deposit is required with all special orders Special orders include unique case finishes unique side door requests i e wrinkle black door or no logo ALL OTHER ORDERS Orders can be pre paid using VISA MasterCard or American Express Prices shown are F O B Haslett MI BAKER provides free UPS ground shipping on all retail orders for complete transmissions or transmission kit UPS air shipment is available upon request Customer is responsible for air shipment premiums LIMITED WARRANTY BAKER TM Inc transmission accessories are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 2 years from the date of purchase or up to 24 000 miles whichever is sooner If the product is found by BAKER io be defective such products will at the option of BAKER be replaced or repaired at cost to BAKER In the event warranty service is required the original purchaser must call or write BAKER immediately with the problem If it is
7. son or loss of or damage to property BAKER transmissions transmission kits and Wide Tire Kits are designed exclusively for use in Harley Davidson motorcycles BAKER shall have no warranty or liability obligation if a BAKER part is used in any other application If it is determined that a BAKER transmission assembly has been disassembled during the warranty period for any reason this limited warranty will no longer apply PAGE 7 TERMS V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT The words Harley Davidson and H D are registered trademarks and are for reference only Use of H D model designations and part numbers are for reference only BAKER Drivetrain has no association with and makes no claim against these words trademarks or companies It is the sole responsibility of the user to determine the suitability of this product for his or her use and the user shall assume all legal personal injury risk and liability and all other as well as all other obligations duties and risks associated therewith CUSTOMER SUPPORT For any installation or service questions please contact our BAKER technical department toll free 1 877 640 2004 DRIVETRAIN PREMIUM DRIVETRAIN INNOVATIONS FOR AMERICAN MOTORCYCLES PAGE 8 DISCLAIMER
8. the new ratchet gear pn 138N1 4 and old spring into the top cover so that the Je counter bore of the gear is facing the backing plate gasket surface 2 2 Install the ratchet shaft pn 160N1 4 supplied in the kit by lining up the timing mark on the gear painted white with the edge of the shaft tooth as shown in figure 4 Using a screw driver hold the spring loaded gear toward the backing plate surface and install supplied cotter pin pn 9R100PCOOP and bend over Figure 5 Ss FIGURE 5 COTTER PIN INSTALL CONTINUED ON NEXT PAGE PAGE 5 PREP INSTALLATION V2 21010 BAKER 4 SPEED N1 SHIFT DRUM KIT 3 Install the N1 Shift Drum pn 127SN1 4 in the cover so the timing mark on the top of the tooth shorter tooth painted white lines up with the timing mark on the ratchet gear Figure 6 Apply some transmission oil to the drum rod O ring and rod install the rod so that the seal side is facing toward the detent end of the top cover Install the drum rod retaining screw per your Factory Service Manual Check to make sure shift drum spins freely with no binding 4 Install the cam follower making sure the end of the cam EN A Er follower lands into the detent of the shift drum Figure 7 and Zn install the neutral switch per your Factory Service Manual WE a 7 l FIGURE 6 DRUM TIMING 5 Position the top cover so that the Ratchet Shaft is facing upward Place the supplied gasket pn 155 4GAS onto th
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