Instruction/ maintenance manual of the product Motorcycle Accessories S&S Cycle
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1 Instruction Sheet #51-1 160 04-28-04 Copyright®, 2003 by S&S Cycle, Inc. All rights reserved. Printed in the U.S.A. Because e v ery industry has a leader S&S T win Cam Style Engine Assembly and Installation Instructions S & S Cycle , I nc.
2 SAFE INST ALLA TION AND OPERA TION RULES: Before installing any S&S engine part, it is your responsibility to read and follow all instructions. The rules below are for your personal safety , and must be kept in mind at all times. ● Gasoline is extremely flammable and explosive under certain conditions, and toxic when inhaled.
S&S Basic T win Cam Style Engines for Evolution Style Chassis * Displacement Bore Stroke Fuel System Finish Assembled Part Number Natural 31-9340 124" 4 1 ⁄ 8 "4 5 ⁄ 8 " Carbure.
B. Additional Features: ● Greater overall strength than stock crankcases, especially in the front motor mount, an important consideration in high performance applications. ● All oil passages between the crankcase and cam support plate are o-ring sealed.
5 C. Modification Notes S&S Cycle cautions against modifying these crankcases due to the possibility of damaging or weakening them. Modifying S&S crankcases in any fashion voids all manufacturer warranties.
6 CAUTION - Improper alignment of engine and frame mounts may cause abnormal stresses resulting in damage to crankcases or other parts. 2. T est-fit instructions for T win Cam style cases with Evo Style motor mounts. 1. Assemble case halves using case bolts.
CAUTION - Failure to observe the above may result in engine damage not covered under warranty . 1. Crankcase preparation before assembly . NOTES - S&S crankcases are sold in matched sets only .
3. Coat right main bearing and race with assembly lube. , then join left and right crankcase halves. 4. T ighten 5⁄16" case bolts to 18 ft-lbs, tighten 1⁄4" center bolt to 120 in-lbs. in the sequence shown. See Figure 1. 5. Install drive sprocket spacer and sprocket shaft oil seal in main bearing race of left case.
9 Use tool to guide bearing rollers onto inner race Picture E9 Picture E12 Picture E10 Picture E13 Picture E1 1 Figure 1 Picture E7 1 2 3 4 5 6 7 8 9 Picture E8.
10 2. Inspect pistons, especially areas around machined surfaces such as ring grooves and wristpin holes. De-burr as necessary , taking care to remove particles that could become dislodged inside engine. 3. Measure ring end gaps and adjust as necessary .
11 5. Install cylinder heads 1. Place head gasket on top of cylinder . Locate on dowels installed in cylinder . NOTE - Head gaskets should be installed clean and dry . 2. Before installing heads spin each head bolt down on its respective stud to be sure threads are clean and free of contamination.
9. Compression releases and rocker cover installation. Refer to the included instructions to install the compression releases and rocker covers NOTES: ● If S&S compression releases will be installed, it is much easier to install them before the rocker covers are installed and the engine is installed in the frame.
H. Fuel system installation and tuning NOTES - S&S Engine assemblies are available with either carbureted or fuel injected systems. Assembled Engines are shipped with the carburetor or fuel injection system installed. Refer to the included instructions for operation and tuning .
NOTE - S&S oil line, oil tank fittings, and oil conduit block fittings have a larger diameter than OEM components. CAUTION - Do not use the existing OEM oil tank fittings with S&S oil line #50-8157. The OEM fittings are not large enough diameter for the S&S oil line.
NOTES: ● If oil fails to appear at oil sender hole within 30 seconds of starter operation, allow the starter to cool. verify that oil line routing is correct and that the oil tank is full to the proper level ● Oil pressure indicator lamp should light when ignition is turned on.
2. Engine break-in 1. Closely monitor engine for excessive heat build-up. Do not allow the engine to idle for long periods of time. Be especially watchful when air temperatures exceed 90 degrees. Slow speed operation in urban areas during the summertime is especially hard on engines.
17 Displacement Bore Stroke Compression Ratio 124” 4-1⁄8” 4-5⁄8” 10.8:1 Cylinder Heads Specification V alve guide in head (tight) .0015”-.003” V alve seat in head (tight) .005”-.0075” V alves Specification Service (Fit in guide.) Wear Limit Intake .
18 S&S Recommended Regular Service Intervals Item Interval Engine Oil & Filter ...........................................Change at 50, 500, 2,500 miles, every 2,500 ........................................................................ miles thereafter .
19 1 2 6 4 5 33 31 18 14 12 11 16 17 12 14 10 7 19 25 27 24 26 13 15 30 29 28 20 25 32 21 23 22 3 9 8 7 1. Bolt, stator 10-24 x1" SHC - 4 required (HD#2720) (10 Pack) . ..................... 50-0194 2. Seal, sprocket shaft (HD#12068) ............
Because e v ery industry has a leader.
An important point after buying a device S&S Cycle Motorcycle Accessories (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought S&S Cycle Motorcycle Accessories yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data S&S Cycle Motorcycle Accessories - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, S&S Cycle Motorcycle Accessories you will learn all the available features of the product, as well as information on its operation. The information that you get S&S Cycle Motorcycle Accessories will certainly help you make a decision on the purchase.
If you already are a holder of S&S Cycle Motorcycle Accessories, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime S&S Cycle Motorcycle Accessories.
However, one of the most important roles played by the user manual is to help in solving problems with S&S Cycle Motorcycle Accessories. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device S&S Cycle Motorcycle Accessories along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
