Yamaha YSR-50 Racing Clutch Kit PDF Installation Instruction

Installation Instructions:
First you must remove the lower fairing from the bike, and drain all of the transmission oil, via the drain plug on the bottom of the engine, into a pan. Next, remove the kick starter lever. Then you can remove all of the Phillips screws holding the clutch cover on, with a #3 Phillips screwdriver. Position the drain pan under the clutch cover, as some residual oil will flow out as this cover is removed. You may have to lightly tap the cover with a soft hammer to loosen it.

Be careful to not rip or otherwise damage the clutch cover gasket. (If in doubt as to the status of the gasket, throw it away and use a new one) Once the cover is off, you will see 4 bolts on the clutch hub. Remove these 4 bolts and pull off the outer pressure plate. Now you can remove the 2 old friction plates and the 1 steel plate (If the steel plate is warped or blue, replace it too). Also, be sure to remove the rubber o-rings from the inner clutch hub as they are not needed in the racing clutch. Apply some fresh transmission oil to the new friction plates, (both sides) then place one new friction plate in the clutch, then the steel plate, then the other friction plate. Replace the outer pressure plate and, with the new springs, replace the 4 bolts.

Be very careful in tightening these bolts as the aluminum bosses they thread into are very soft and stripping is very likely. If in doubt as to the quality of the threads, have them repaired using “HELI-COILS”. Replace the drain oil bolt, (preferably with one of our Magnetic Drain Plugs, Part No. 15-4037) Replace the cover (using a new gasket, if yours was damaged) tighten all the cover bolts evenly and in a criss-cross pattern. Replace the kick starter, and refill the transmission with 600cc of good oil, like Castrol 20/50 GTX To adjust the new clutch, remove the ignition cover on the left side, (If your screw heads are buggerd, we have a nice Allen Bolt Kit that replaces every bolt on both engine covers for only $12.95 Part No. 50-3000). You will notice the clutch release mechanism to the rear of the ignition rotor. Just above the release mechanism is the clutch cable adjuster.

Loosen this adjuster all the way. Now, loosen the 10mm nut in the center of the clutch release mechanism, and back out the center screw a couple of turns. Now screw it back in paying close attention to the feel of it coming into contact with the clutch push rod inside the engine. Turn it in a little to take all play out of the system. The object here is to take all play out of the system with out having any pressure on the clutch push rod in the engine. Once you feel you are at that point, back out the screw about a quarter turn and lock down the 10mm nut that surrounds the screw.

If you can, hold the screw with the screwdriver and tighten the nut with a box wrench so you will be sure the adjustment has not changed by tightening the 10mm nut. You should now have a little play in the system. If not, you WILL burn-up the clutch right away! Now you can adjust the lever play with the cable adjuster. 3/8 to 1/2 inch is what you are looking for at the lever tip. Replace the ignition cover and the fairing and you are ready to go!

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Yamaha Seca 650 Turbo PDF Manual Review

One that is lightweight and possesses good handling, is fuel efficient and gives up none of the mid displacement virtues, yet upon command will deliver the performance of an engine with almost twice the displacement size? Yamaha Turbo falls short of these On paper the expectations, but only slightly. Charts, graphs and drag strip timing slips do not necessarily make a motorcycle. Nor do they tell the whole story.

What does make this motorcycle is the straight-forward thinking behind it. Unfortunately, first impressions are usually lasting impressions, and one look at the new and far out styling carried by the Seca Turbo and its computerized check panel leaves one with the initial impression of, “Boy, there must be a lot of complicated hardware lurking behind those body panels.” This is a natural assumption in as much as the
Yamaha Seca Turbo follows closely on the heels of a very much similarly-appearing turbo entry from Japan—Honda’s very complex “statement” of engi-Honda CX500 Turbo. But neering excellence, the like my daddy always says, “don’t assume nothing!” Yamaha 650 Seca Turbo is as simple as the The Honda CX500 Turbo is complex.

Once the “Megaforce” appearing body panels are removed (which only takes about two minutes for the main body section removal, and another five minutes to remove the engine shroud panels) what XJ650 Eurobike you have appears to be Yamaha’s with a bank of four very conventional carburetors. Fact is, except for the exposed fuel tank (the real one which looks like it belongs on a desert racer Seca 650 rather than on a sleek turbobike) the appears to be your ordinary, garden-variety Turbo type mid-displacement motorcycle that is powered by a very conventional, normally-aspirated engine. Seca And in a sense, it is. Because when the Turbo is ridden in a conventional manner, it performs exactly the way a normally-aspirated motorcycle would perform.

And when called upon to perform like a turbocharged engine, it does because it is. The “best of both worlds” is usually clouded with a gray area called “compromise.” In the world of turbocharging, this gray area is referred to as “turbo lag.” This much talked about turbo lag is a condition that occurs, in varying degrees, in all turbocharged engines. The severity of turbo lag is relative to numerous factors, from engine design to properly matching the turbocharger to the engine’s size and number of cylinders. Yamaha has done this—and more—and executed it with simplistic brilliance. XJ650LJ Seca Turbo is based on the The XJ650 Eurobike, an existing shaft-driven…

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Yamaha XVS650AK Service PDF Manual

Repairs attempted by anyone without this knowledge are the driving unsafe and unfit for use. This model is designed and manufactured to perform within certain specifications relating to the performance and emissions. Good service with the tools necessary to ensure that the vehicle will operate as designed.

If there is a question about a service procedure, it is imperative that you contact a Yamaha dealer for service information changes that apply to this model. This policy aims to provide clients with the most satisfying of his motorcycle and meet federal environmental objectives. This guide is prepared by the Yamaha Motor Company primarily for use by Yamaha dealers and their qualified mechanics. It is not possible for all knowledge of a mechanic in a manual, it is assumed that everyone who uses this book to perform maintenance and repairs on engines Yamaha has a basic knowledge of the mechanical ideas and the procedures of motorcycle repair .

Yamaha Motor Company, Ltd continuously strives to improve all its models. Changes and major changes in the specifications or procedures will be sent to all authorized Yamaha dealers and will appear in future editions of this manual as applicable.

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Yamaha YZF-R6S/YZF-R6SC Supplementary Service PDF Manual

Additional services this manual has been prepared to introduce new services and data YZF-R6S/YZF-R6SC. For complete service information procedures it is necessary to use this additional service manual with the following guidelines.

This guide is intended as a convenient and easy to read guide to the engineer. Detailed explanations of all installation, removal, disassembly, assembly, repair and inspection procedures set out in individual steps in sequential order.

1. The handbook is divided into chapters. An abbreviation and symbol in the upper right corner of each page indicates the current chapter. Refer to “Character”.
2. Each chapter is divided into sections. This section title is shown at the top of every page, with the exception of Chapter 3 ( “Periodic checks and adjustments), where sub-section title (s) AP-pears.
3. Sub-section titles appear in smaller print than the section title.
4. To identify parts and clarify procedure steps have exploded diagrams at the beginning of each removal and disassembly section.
5. Numbers are listed in order of jobs in the volume chart. A circled number indicates disassembly step.
6. Signs indicate parts to be broken, or replaced. Refer to “Character”.
7. A working Chart instructions accompanied exploded diagram, providing the order of jobs, names of parts, notes in jobs, etc.
8. Jobs requiring more information (such as special tools and technical data) are described consistently.

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