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Yamaha YZ 250F Camshafts REMOVAL AND INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 30-12-2011

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Remove the 4 bolts that hold the exhaust cam cap in place, lift the cam cap off. It may be necessary to pry very lightly on the cap to lift it off its dowel pins. Do not use the cam lobes as the pry point. Be careful not to drop the dowels and also be careful to not lose the half moon shaped retainer for the bearing under the cam cap. Remove the 6 bolts that hold the intake camshaft cap and lift the cam cap off the camshaft, again, be careful to not drop the retainer or dowels. Lift the intake camshaft out of its pocket in the cylinder head casting. Remove the cam chain from the sprocket, set the stock camshaft aside. Lift the exhaust cam out of its pocket in the cylinder head casting and remove the chain from the sprocket. Do not drop the cam chain, dangle it over the side of the engine while keeping slight upward pressure on the chain to maintain its position on the drive sprocket on the crankshaft. Fit the half moon shaped retainers in the grooves of the Hot Cams camshaft bearings to ensure good fit, set retainers aside for the time. Using assembly lube, lube the shim buckets, bearing surfaces for the camshafts in the cylinder head, and pack some in the camshaft bearings. Set the exhaust cam into the cylinder head casting while at the same time fitting the cam chain over the sprocket. Make sure that you keep all the cam chain slack to the back of the engine. The cam chain pulls the camshaft sprockets in a counter clockwise direction and the slack of the chain must be kept on the cam chain tensioner side of the engine. The exhaust cam has two timing marks on it. When correctly installed one mark will be at the 9 o’clock position and the other mark will be at the 12 o’clock position. When correctly timed the mark at 9 o’clock will be aligned with the valve cover gasket surface. Repeat the above process for the intake camshaft. Again, make sure you keep the chain slack to the cam chain tensioner side of the engine. Check to be sure the crankshaft is still at TDC. The intake cam has two timing marks also. One at 12 o’clock and the other at 3 o’clock. When both cams are installed correctly, the valve cover gasket surface will form a straight line through the exhaust timing mark at 9 o’clock and the intake timing mark at 3 o’clock

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HARLEY DAVIDSON HYBRID CAM PLATE AND HIGH FLOW OIL PUMP KIT REMOVAL AND INSTALLATION INSTRUCTIONS

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Filed Under (Harley Davidson) by admin on 07-02-2011

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REMOVAL To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect battery cables (negative (-) cable first) before proceeding. (00307a) Disconnect negative (-) battery cable first. If positive (+) cable should contact ground with negative (-) cable connected, the resulting sparks can cause a battery explosion, which could result in death or serious injury. (00049a) 1. Refer to the service manual and follow the instructions to remove the seat and disconnect the battery cables, negative (-) cable first. Retain all seat mounting hardware. Gasoline can drain from the carburetor fuel line when disconnected from fuel valve fitting. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. Wipe up spilled fuel immediately and dispose of rags in a suitable manner. (00256a) NOTES Installing this kit requires removal and installation of the cam support plate. Refer to the service manual for instructions with the following exception pertaining to cam compartment compo- nents: The crank and primary cam sprocket flange bolts are specially hardened, and the flat washers are of a special diameter and have ground surfaces. Use ONLY the parts provided in the Drive Gear Retention Kit (H-D Part Number 25533-99A, sold separately) when installing this kit. -J04804 1 of 7
The cr ank sprocket flange bolts and pr imary cam sproc ket flange bolts ARE NOT interchangeable. 2. Refer to the service manual to remove and discard the crank sprocket flange bolts and primary cam sprocket flange bolts and washers. 3. For 1999 models only: Refer to the service manual to remove and discard the currently installed cam drive sprocket. 4. Refer to the service manual to remove and disassemble the cams from the support plate and oil pump. Discard the support plate and oil pump. 5. For 1999 – 2000 Dyna, 2000 Softail, 1999 – 2000 Touring, and 2001 EFI Touring models only: Inspect the cams, chain, sprockets and chain tensioners for wear, and replace as needed. Refer to the service manual for inspection and replacement procedures. For 2001 – 2005 Dyna, 2001 – 2006 Softail, 2002 – 2006 Touring, and 2001 carbureted Touring models only: Inspect the cams and secondary cam chain for wear, and replace as needed. Refer to the service manual for inspection and replacement procedures. The primary cam chain, primary sprockets and both tensioners will be replaced by new components from the kit. For ALL models and years: Discard the guide, as it will not be used. INSTALLATION 1. ALL models: See Figure 1. Obtain the new Rear Cam Roller Bearing Kit (H-D Part Number 8983) from inside the Cam Service Kit (H-D Part Number 17045-99C, purchased separately), and install as indicated in Step 2. NOTE See Figure 2. If not enough of the splined shaft is exposed to install the sprocket, omit the spacer (4) and proceed to Step 2e. When the bearing inner race is started onto the machined area, remove the flange bolt (5), flat washer (6) and sprocket, then assemble using the spacer (4). Repeat Step 2e to fully install bearing inner race. To center thrust washer, be sure o-ring is installed in relief groove. Damage to bearing cage and engine can occur if thrust washer is not centered. (00473b) 2. See Figure 1. Install the O-ring (5), thrust washer (4) and bearing inner race (3) onto the rear camshaft as follows: a. See Figure 2. To properly locate the thrust washer (2), install the O-ring (3) in the grinding relief groove on the splined end of the rear camshaft between the machined area and the secondary cam sprocket.

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Yamaha YZ400/426F Camshafts REMOVAL AND INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 01-01-2012

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Cleanliness is always a good place to start. Make sure the motorcycle is cleaned thoroughly before you start. It would be advisable to use an engine degreaser on the frame and the engine. This will ensure a clean engine during the assembly process and less of a chance of thread damage and/or dirt contamination in the engine during reassembly. And as always, replace any fiber-based gasket that was moved in any way, i.e.: cam chain tensioner. You will need basic hand tools and a torque wrench, machine towels (rags), some cleaning solvent, and a cam chain tensioner gasket. And the Hot Cams’ Degree Wheel Kit if you so desire. We will start by removing the tank and seat, top engine mount, and the cam cover. Remove the crankshaft cap and timing hole cap on the left engine case cover. Remove the spark plug. Rotate the engine in a counter clockwise (CCW) direction. Position the engine on top dead center (TDC) using the mark on the flywheel or better yet a degree wheel using a positive stop. Be sure to notice that the intake valves were the last to move, this will ensure the engine of being on “true” TDC. True top dead center occurs when both the intake and exhaust valve are closed when the piston is at TDC. This is technically the end of the compression stroke and the Page 1
beginning of the power stroke. The “artificial” TDC is during the overlap when both the intake and exhaust valves would be open. Note the positioning of the cam lobes (their included angle will be close to 170 degrees), this will help during the installation of your new Hot Cams camshafts Remove the cap bolt on the end of the cam chain tensioner block, be aware of the copper washer. Release the spring tension on the cam chain tensioner by turning the flat blade screw slot inside the adjuster block in a clockwise (CW) direction; it will lock in the retracted position. Remove the two 8mm headed bolts that hold the cam chain tensioner to the cylinder block. Remove and discard the gasket. Remove the 4 bolts that hold the exhaust cam cap in place, lift the cam cap off. It may be necessary to pry very lightly on the cap to lift it off its dowel pins. Do not use the cam lobes as the pry point. Be careful not to drop the dowels and also be careful to not lose the half moon shaped retainer for the bearing under the cam cap. Remove the 6 bolts that secure the intake cam cap and lift the cam cap off the camshaft, again, be careful to not drop the retainer or dowels. Lift the intake camshaft out of its pocket in the cylinder head casting. Remove the cam chain from the sprocket, set the stock camshaft aside. Lift the exhaust camshaft out of its pocket in the cylinder head casting and remove the chain from the sprocket. Do not drop the cam chain, dangle it over the side of the engine while keeping slight upward pressure on the chain to maintain its position on the drive sprocket on the crankshaft

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Harley-Davidson Twin Cam Engines Cam Chain Drive System Installation and removal MANUAL

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Filed Under (Harley Davidson) by admin on 27-03-2012

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Removing the Cam Chain Drive System. NOTES Changing camshafts and cam drives in the 2006-up Harley-Davidson® Twin Cam 88® engines is different than in pervious engines. Procedures require use • of some special tools. Installation should be done by an experienced mechanic with access to factory service manual and required tools. Tighten all fasteners to the correct specifications and in order described. Always use an accurate torque wench. • Incorrect installation can cause engine damage not covered under warranty. CAUTION Failure to install components correctly can result in sudden engine seizure. Engine seizure may result in serous injury to motorcycle operator, passenger, or others. A- Disconnect the battery ground cable to eliminate potential sparks and inadvertently engagement of the starter while working on the motorcycle. B- Remove spark plugs and pushrod cover clips. Collapse the pushrod covers to expose the pushrods. C- Safely elevate and stabilize the rear of the motorcycle. Place the transmission in high gear. Turn the rear wheel to rotate the engine until both lifters and pushrods for either cylinder are at the lowest point on the camshaft (TDC of compression stroke). Both intake and exhaust pushrods for that cylinder will be under pressure from the valve springs and will rotate with light finger pressure. NOTE: 510G camshafts may use stock style non-adjustable pushrods instead of adjustable pushrods. If installing non-adjustable pushrods, disassemble and assemble rocker boxes per H-D® instructions. All other S&S® gear driven cams require installing adjustable pushrods. As a time-saving measure, the stock pushrods can be removed with bolt cutters. Be sure to head caution and warnings of these instructions. D- Cut the pushrods for the cylinder that is at TDC with the bolt cutter and remove the pushrod covers from the engine. Rotate the engine to place the pushrods for the other cylinder at their lowest point. Cut and remove the remaining pushrods. WARNING CAUTION Cutting pushrods with a saw or cutoff wheel may result in debris entering the engine, causing engine damage not covered under warranty. WARNING Cutting pushrods without releasing spring pressure, by rotating the engine until tappets are at the lowest point of travel can result in bodily injury. E- Remove the pushrod covers and lifters form the crankcase. F- Remove engine cam cover and gasket. Secure lifers with a tool made from a large binder clip

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HARLEY DAVIDSON SCREAMIN' EAGLE BILLET CAM SUPPORT PLATE REMOVAL AND INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 01-03-2011

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REMOVAL NOTE For removal, refer to the appropriate sections of the applicable Service Manual for detailed information on the following generalized steps. To prevent accidental vehicle start-up, which could cause death or serious injury, remove main fuse before proceeding. (00251b) 1. Remove the Maxi® fuse. 2. Remove the cam cover and gasket. 3. Remove and discard the crank and primary cam sprocket flange bolts and washers. 4. Release the oil pump, and remove the cam support plate and cams. Disassemble the cams from the support plate and discard the support plate. 5. Inspect cams, chain, sprockets, oil pump, chain tensioners and guide for wear and replace as needed. Refer to the Service Manual for inspection and replacement proce- dures. -J04503 INSTALLATION NOTES For installation, refer to the appropriate sections of the applicable Service Manual for detailed information on the following generalized steps. See Figure 1. When installing Screamin’ Eagle camshaft kits, install the O-ring included in this kit over the splined shaft of the rear camshaft as shown. 1. Using the Camshaft Assembly Tool (HD-47956) and assemble the camshafts, chains and tensioners to the billet cam support plate. 2. Install the cam support plate assembly into the crankcase. 3. Using the Crankshaft/Camshaft Locking Tool (HD-47941), install cam sprockets, chain and tensioner. 4. Install cam cover and gasket. 5. Install Maxi fuse.

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Harley-Davidson feuling Adjustable Pushrods Installation Instructions

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Filed Under (Harley Davidson) by admin on 22-04-2012

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1. Refer to the proper factory service manual for your model and year of engine, for removal of existing pushrods. 2. The Feuling pushrods are designed with a small adjustment parameter for rigidity creating maximum lift – These are not quick install pushrods and may require the removal of the lifter blocks and or loosing of the breathers/rocker arms supports. When loosening the rocker arm supports always remove the breather bolts first. 3. Clean and inspect each new Feuling pushrod including center oil hole 4. Feuling pushrods are marked Intake and Exhaust. The shorter pushrods are Intake and the longer pushrods Exhaust 5. Feuling recommends using new O-rings and gaskets where applicable to prevent oil leaks
6. Always pump up hydraulic lifters before installing them. Use an oil squirt can to fill the lifter with oil through the feed hole on the side of the lifter, push oil through the feed hole until the air bubbles are gone. If needed work the oil back and forth through the feed hole and pushrod seat with the squirt can. Light weight oil can be helpful. 7. Assemble and adjust one cylinder at a time, the servicing cylinder needs to be on TDC of compression stroke so the cam lobes are at their lowest point 8. Install pushrods into proper locations with the adjusting side of the pushrod down, towards the lifter. Slide the pushrods through the pushrod covers up into the rocker housing and set the pushrod on the seat of the lifter. We recommend filling the pushrods with oil then maneuver the pushrod up into the rocker arm seat. 9. Torque rocker arm housings and breathers to factory torque spec’s 10. See the instructions for your lifters for the proper adjustment. All Feuling hydraulic lifters run best at . 090″ – . 100″ of crush.

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Kawasaki KFX KLX 400 Camshafts Installation Instructions

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Filed Under (Kawasaki) by admin on 25-10-2010

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Remove the plug bolt from the back of the cam chain tensioner assembly. It is under pressure from the spring. Remove the spring and pin. Remove the bolts and tensioner assembly from the cylinder. Release the lock on the tensioner assembly and push the tensioner rod into the assembly so that it is fully retracted. Remove the eight 5mm Allen headed bolts that hold the cam caps in place. Remove the cam caps; be aware of the locating dowels in the caps to keep them from falling into the engine. It may be necessary to pry very lightly on the caps to lift them off their dowel pins. Do not use the cam lobe as the pry point. Lift the intake camshaft out of its pocket in the cylinder head casting. Remove the cam chain from the sprocket, set the stock camshaft aside. Lift the exhaust cam out of its pocket in the cylinder head casting and remove the chain from the sprocket. Do not drop the cam chain; dangle it over the side of the engine while keeping slight upward pressure on the chain to maintain its position on the drive sprocket on the crankshaft. Using assembly lube, lube the shim buckets and bearing surfaces for the camshafts in the cylinder head. Set the exhaust camshaft into the cylinder head casting while at the same time fitting the cam chain over the sprocket. Make sure that you keep all the cam chain slack to the back of the engine. Repeat the above process for the intake camshaft. Again, make sure you keep the chain slack to the cam chain tensioner side of the engine. Check to be sure the crankshaft is still at TDC. Check the location of the cam lobes. The camshafts are marked, and preset to 108-degree centers. If the lobes are not where they should be, adjust the positioning of the camshaft by rotating the sprocket one tooth on the chain. Do this until it is in the correct position as before you removed the camshafts. Check the positioning of the crankshaft for the TDC mark

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2007 KTM 250 XC-F, XCF-W, EXC-F 400 XC-W, EXC RACING 450 XC, XC-W, EXC RACING 525 XC, XC-W, EXC RACING 525 XC DESERT RACING INSTALLATION MANUAL

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Filed Under (KTM) by admin on 05-02-2012

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Headlamp switch (XC-W) In this model the headlamp is switched on with the pull switch [1] . Flasher switch The flasher switch is a separate unit and is mounted on the left portion of the handlebar. The wire harness is designed in a way that whenever you want to use your bike off-road, you can dismount the entire turn indicator system without affecting the function of the remaining electrical system. Flasher left Flasher right Starter button Pushing the black starter button [2] will actuate the E-starter. Indicator lamps The green control lamp [5] flashes in the same rhythm as the flashing indicator when the indicator is working. The blue control lamp [6] lights up when the high beam is on. ENGLISH 7 2 Emergency OFF switch (EXC Australia) The red emergency-OFF switch [3] is arranged adjacent to the throttle grip. In this position, the E-starter is operational and the engine can be started. In this position, the E-starter and ignition circuits are interrupted.The E-starter cannot be actuated, and the engine will not start, not even if you attempt to start it with the kickstarter. Pushing the black starter button [4] will actuate the E-starter. 3 4 5 6 1 OPERATION INSTRUMENTS » ENGLISH 8 TEST All of the display segments briefly light up for the display function test. WS (wheel size) The display changes and the circumference of the front wheel is briefly displayed in millimeters (2205 mm corresponds to a front wheel circumference of 21″ with production tires). Afterwards the display will return to the previous display mode

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Harley-Davidson Twin Cam Engines Performer RPM Gear Drive Camshaft Kit INSTALLATION PROCEDURE

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Filed Under (Harley Davidson) by admin on 03-03-2012

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1. Disconnect the battery, and remove the fuel tank. 2. On engines with the oil tank above the engine, drain the engine oil. 3. Remove the front exhaust pipe to clear the Cam Housing Cover. 4. Remove the Rocker Covers and remove the four 5/16″ bolts and the two 1/4″ bolts holding the rocker arms in place. With the rocker arms removed, remove the stock pushrods. 5. Remove the push rod tube retaining clips and push rod tubes. 6. At this point, you may remove the lifter covers and take the lifters out, or you can make a lifter holding tool from a binder clip as shown in Figure 1 INSTALLATION PROCEDURE 1. Disconnect the battery, and remove the fuel tank. 2. On engines with the oil tank above the engine, drain the engine oil. 3. Remove the front exhaust pipe to clear the Cam Housing Cover. 4. Remove the Rocker Covers and remove the four 5/16″ bolts and the two 1/4″ bolts holding the rocker arms in place. With the rocker arms removed, remove the stock pushrods. 5. Remove the push rod tube retaining clips and push rod tubes. 6. At this point, you may remove the lifter covers and take the lifters out, or you can make a lifter holding tool from a binder clip as shown in Figure 1 . 7. On pre-2000 models with a cam position sensor, you may want to remove the inspection cover, unplug the wires, and remove the sensor at this time to ease installation later on. 8. Remove the cam housing cover keeping the bolts in a separate cup. ( Note: Oil will run out of the cam housing.) 9. Using the Chain Tensioner Unloader Tool, unload pressure on the outside chain tensioner, and pin it in place with the retaining pin (See Figure 2) .

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HARLEY DAVIDSON SCREAMIN' EAGLE TWIN CAM 103 (1690 CC) CONVERSION KIT INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 19-02-2011

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REMOVAL When servicing the fuel system, do not smoke or allow open flame or sparks in the vicinity. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. (00330a) 1. Remove maxi-fuse. Refer to MAXI-FUSE INSTALLATION in Service Manual. 2. Remove existing air cleaner assembly. Discard filter element, backplate, and air cleaner cover insert but save remaining parts. Refer to AIR CLEANER REMOVAL in Service Manual. 3. Remove existing exhaust system. Discard mufflers but save remaining parts for kit installation. Refer to EXHAUST SYSTEM REMOVAL in Service Manual. 4. Remove engine from chassis following the instructions in the Service Manual. 5. Remove induction module. Refer to appropriate FUEL INJECTION section in Service Manual. 6. See Figure 1. Remove and save screw (with pilot sleeve) to release fuel supply tube clamp. is03165 Figure 1. Fuel Supply Tube Clamp Screw 7. See Figure 2. Pull fuel supply tube (1) from fuel rail. -J03825 1 of 10 1 2 3 3 4 is03166 1. Fuel supply tube 2. Sealing washer 3. O-ring 4. Screw (with pilot sleeve) Figure 2. Fuel Supply Tube Assembly 8. Remove sealing washer (2) and O-ring (3) from fuel supply tube. Remove second O-ring (3) from fuel rail bore. Discard sealing washer and O-rings. 9. See Figure 3. Pull fuel injectors (1) with attached fuel rail from induction module. To overcome the resistance of the bottom O-ring (2) on both fuel injectors, gently rock assembly back and forth while pulling. 10. Remove spring clips (3) from fuel injectors. Pull fuel injectors from fuel rail. To overcome the resistance of the top O-ring (4) on both fuel injectors, gently rock assembly back and forth while pulling. 11. Disassemble engine top end, engine bottom end, crankcase, and crankshaft. Refer to appropriate ENGINE sections in Service Manual. 1 2 4 3 is03167 1. Fuel injector 2. O-ring, bottom 3. Clip, spring 4. O-ring, top Figure 3. Fuel Injector Assembly INSTALLATION Inspect Cam Clearance A clearance problem between the new cam lobe and crankcase housing may exist on certain older model engines. Failure to maintain proper clearance could result in severe engine damage. (00391b) 1. See Figure 4. Prior to starting assembly procedures, insert new cams from kit into inner needle bearings (1) located in the right side crankcase and check for a minimum of 0.030 in. clearance between highest lift point of cam lobes and crankcase housing (2) with feeler gauges. NOTE If inadequate clearance is detected, crankcase housing must be machined to provide 1.060 in. Radius clearance from center of each cam bearing bore. After machining, recheck for minimum of 0.030 in. clearance

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