honda cg 125 carb tuning mixture screw

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KAWASAKI 1500 CARB THUNDER Air Filter Kit Installation And removal Instruction

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

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1) Remove Seat 10mm KAW 1500 CARB ADPTOR QTY PARTS LIST 1 1500 CARB ADAPTOR 1 3″ PIECE OF HOSE 1 DOUBLE BARB 1 L-BARB 1 3/8″ RED PLUG 1 ¼” BLACK VACCUM PLUG 1 M6-1 NYLON INSERT LOCK NUT 3 M6-1 X 16 FLAT SOCKET HD CAP SCREW 1 170 MJ 1 INSTRUCTIONS 2) Remove Dash Plaque 8mm bottom Bolt only 3) Lift from bottom then Remove speedo cable 4) Disconnect Electric Plugs 5) Remove 12mm bolts holding tank 6) Turn petcock OFF – Pinch off fuel line. 7) Disconnect the electric Plug under speedo opening 8) Lift Tank at Rear – Disconnect two Vent Lines; Fuel gage Vent will Pull up – Remove. 9) Remove Chrome Air Cover. 10) Left side Remove two screws – 10mm bolt in side Air box. Pull hoses off Remove 1″ hose going to cross over Tube. 11) Remove two 8mm bolts on Bracket – Remove Bracket 12) Remove Screw on Top of air Box Snorkel 13) Remove both side covers 14) Remove air Backing plate right side (Crank Case Breather hose that connects to stock air box will connect to new) 15) Remove Bracket that holds Carb and holds Backing Plate 16) Take idle adjustable Knob loose – let hang loose 17) Take Choke Knob out of holding Bracket 18) Hose that went to cross over tube MAY BE PLUGGED OR VENTED your Choice (Fresh air unit) ** 98′S or any models with carb warmer should disconnect carb warmer by pinching off line on each side of connector that plugs into carb on bottom. Small bracket with one screw directly on the bottom of carb. 19) Loosen Clamp that holds Carb to intake Manifold, Carb will hang loose 20) Remove intake Manifold 5mm Allen- Remove crossover tube. 21) (- BE CAREFULL-) LINE IT UP RIGHT- Replace intake Manifold (YOU MAY TO SEAL THIS WITH A SEALER LIKE PERMATEX) ( BE SUPER CAREFUL TO KEEP INTAKE COVERED DURING EACH STEP. SCREWS CAN FALL ONTO INTAKE) 22) Drain Float Bowl 3mm allen – very bottom of carb 23) Remove Float Bowl 4 screws (#2 Phillips) let hang down 24) Remove main jet, if Emulsion tube comes out use 8mm and Flat tip to separate jet from Emulsion tube. 25) Install with new jet 26) CAREFULLY Reinstall Float Bowl Cover 27) If installing Needle Remove Top Cover of Carb, Carefully pull the slide out. ( BE CAREFUL WITH DIAPHRAM) Remove Spring + Needle Install new Needle (WE RECOMMEND THE 3RD CLIP FROM TOP WITH TWO WASHERS ON TOP. REINSTALL 28) Be sure to reseat diaphragm – BE CAREFUL Reinstall Cover. 29) Install Carb to Intake – reconnect carb warmer if applicable 30) Reattach idle adjustment 31) Reattach Choke 32) Reattach Bracket in front of Carb- 33) Take Center bolt mount Rubber Gromlet from Stock Air box Plate install in to new Air box Adapter use stock Bolt, Attach to Bracke

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How To Adjust the Accelerator Pump On the 40mm Mikuni Carburetor

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Filed Under (Yamaha) by admin on 21-01-2012

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1) The “blue” colored screw in the image is the duration adjustment screw. Underneath the head of the screw is a lock nut and the bracket arm that the screw is threaded into. To decrease the amount of fuel squirted the adjustment screw is turned “clockwise” or in. To increase the amount of fuel squirted the adjustment screw is turned “counter clockwise” or out. To get the max, amount of decrease remove the screw and take the lock nut off of the screw. Then replace the screw into the cam arm, then replace the lock nut underneath the arm on the screw. this gives you another 3/32″ of an inch in which the screw can be screwed in.
2) Turn the adjustment screw fully clockwise or IN. Start your engine, Blip your throttle open, if the engine stutters, (hesitates), it is not getting enough fuel so turn the screw counter clockwise to increase the amount of fuel squirted from the accelerator pump into the carburetor. Keep blipping the throttle and adjusting the screw till the carburetor starts to cough. Stop here and turn the screw back in till the coughing stops. Tighten down the lock nut. This should give you the best throttle response with the least amount of coughing and backfiring out the carburetor. Timing Adjustment Screw This is the “Green” colored screw just above the Blue duration adjustment screw. The” Mucker” said it best,,,,, This upper screw adjusts the “timing” of the squirt. By altering it’s setting, you can advance or delay the onset of the fuel squirt. But probably, it won’t have to be touched

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MIKUNI VM CARBURETOR SUPER TUNING

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Filed Under (Mikuni) by admin on 31-10-2010

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This manual is intended as a guide for users of Mikuni carburetors who want to learn the adjusting method to the best performance from our products. In motorcycles, special tuning of the engine is now considereda routine practice. The arrows that appear in the drawings in this text show the direction in which air, fuel and an air-fuel mixture flows, respectively. ¢JAir Fuel “Mixture Mounting angle fore and aft inclination of the carb should not exceed approx Function of a carburetor The function of a carburetor is to produce combustible air-fuel mixture, by breaking fuel into tiny particles (in the form of vapor) and by mixing the fuel with air in a proper ratio, and to deliver the mixture to the engine. A proper ratio (mixture ratio or air-fuel ratio) means an ideal air-fuel mixture that can burn without leaving an excess of fuel or air, Whether the proper mixture ratio is maintained or not holds the key to the efficient engine operation, 2. Air-fuel mixture required by the engine (Fig. 1) The ratio of a mixture of fuel and air is called the mixture ratio or the air-fuel ratio and is generally expressed by the weight proportion. Theoretically, the amount of air required for complete combustion of 1 gram of fuel under normal conditions is

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HW Prowler Carburetor Installation Instructions

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Filed Under (Mikuni) by admin on 31-10-2010

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1. Remove both seats and the plastic seat pans under the seats. 2. Remove the engine cover 3. Remove the air-box by removing the cross-bar support that runs under the air-box to the framing on each side by the seat framing and disconnect the air box from the carburetor and from the plastic intake in the rear. 4. Disconnect the engine breather hose from the bottom of the air box 5. Set the air-box to the side 6. Disconnect the plug going to the stock carburetor, this is the electronic choke. Wrap the end left on the vehicle with electrical tape. 7. Cut the fuel line just above the fitting on the passenger side of the carb 8. Remove the side cover off the drivers side of the carb where the throttle cable goes in, see fig. #1 9. Pull the throttle cable out and then remove the throttle cable end from the throttle plate See Fig. #2 10. Loosen the clamp on the rear of the carb holding the carb on 11. Pull the carb out of the intake boot 12. Set OE carb to the side. 13. Push the new Carb into the intake boot making sure the carb is perfectly vertical and then tighten the clamp back up. The new carb is slightly larger than the stock one so some additional pressure will be needed to get it in. 14. Route all the breather lines connected to the carb down under the carb. 15. Connect the throttle cable onto the new carb but putting the cable end in the bottom hole of the throttle plate on the passenger side of the carb allowing the cable to ride in the slot in the plate and then turn the throttle plate clock wise allowing the threaded end of the cable to fit into the lower round hole of the throttle cable connection plate. See Fig. #3 16. Make sure you have a nut on each side of the plate turn the nut on the outside of the plate to take up the slack in the throttle cable then tighten the nut on the inside of the plate. See Fig. #3 17. Push the fuel line onto the fuel inlet on the passenger side of the carb and install the supplied clamp to hold it on. The fuel line will be a little hard to push on. 18. DO NOT ATTEMPT TO INSTALL THE CHOKE CABLE PARTS SUPPLIED IN THE KIT UNTIL AFTER THE CHOKE CABLE ITSELF IS INSTALLED AND READY TO SCREW INTO THE CARBUETOR. 19. To install the supplied choke cable, drill a 3/8″ hole in the dash on the left side of the steering wheel in a location convenient to your left hand. 20. Remove the plastic nut from the bottom of the choke handle on the choke cable. 21. Push the choke cable thru the hole you drilled and then slide the nut over the cable to the inside of the dash and reinstall back on the back of the choke mechanism. Some dash screws maybe needed to be removed to accomplish this

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Honda CARBURETOR ADJUSTMENT TOOLS

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Filed Under (Honda) by admin on 17-12-2011

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K&L CARBURETOR ADJUSTMENT WRENCHES These tools use tough and accurate bevel gear actuation instead of cable for professional use. The aluminum handle includes index marks for accurate tuning. Sold each. Three types available: 35-9653 Slot-type Pilot Screw Adjustment Wrench for Kawasaki/Suzuki/Yamaha 35-9658 Slot-type Pilot Screw Adjustment Wrench with longer tip for Kawasaki/Suzuki/Yamaha 35-9650 D-type Keihin Pilot Screw Adjustment Wrench for Honda 90-DEGREE 1/4″ HEX DRIVER This gear driven, 1/4″ hex driver set is made of high-grade aluminum and stainless steel. Strongest tool of it’s type on the market. Designed for use on hard-to-reach pilot air screws on inline fours. Can be used with any 1/4″ or 6mm hex bits. 35-7820 90-Degree 1/4″ Hex Driver Set: Includes straight slot, phillips, d-shape pilot screw bit, 6mm hex jet bit & 1/4″ – hex – 1/4″ drive bit. FCR CARB TOOL Set includes three bits – 6mm hex for main jets, long reach straight slot for pilot jets and 3mm allen for float bowl removal. Longer bits make this set ideal for reaching into recessed cavities when adjusting Keihin FCR carburetors. Sold as a set. 35-7978 FCR Carb Tool 12″ DRILL BIT For removal of carburetor plug. (mixture screw plug) 1/8″ bit x 12 inch length. 35-1186 YM-33217-16 JET DRIVER 35-2270 Perfect for removal of jets from small recessed passages

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HARLEY DAVIDSON FLSTN SADDLEBAG GUARD KIT REMOVAL AND INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 06-03-2011

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REMOVAL All Models 1. If equipped with saddlebags, removal may ease installation. Follow the instructions in the appropriate Service Manual or Instruction Sheet. 2. See Figure 1. Remove and discard the forwardmost fender support bolt (1). Repeat for the other side. 3. See Figure 2. On the left side, remove the footrest support mounting bolt (1) and footrest support bracket assembly (2). Discard the mounting bolt. 2005 – 2006 Models 1. Loosen the exhaust shields as necessary following the instructions in the appropriate Service Manual. Move as necessary for access. 2. Loosen the exhaust header nuts following the instructions in the appropriate Service Manual. 3. See Figure 3. Remove bolt (1) connecting the exhaust system (2) to the support bracket (3). 4. See Figure 4. Remove the two rear muffler bracket bolts (1). 5. See Figure 5. Move mufflers enough to access the rear bolt attaching the exhaust mounting bracket to the frame. Remove bolt (1) and discard. 2007 – Later Models NOTE On 2007 – later models, the frame tab (4) has a plug instead of a bolt (see Figure 6, item 1). 1. Remove plug and discard. 1 is05313 1. Fender support bolt (discard) Figure 1. Remove Docking Hardware 1 2 is05320 1. Footrest support mounting bolt 2. Footrest support bracket assembly Figure 2. Footrest Support Bracket Assembl NSTALLATION Right Side See Figure 5 or Figure 6. 1. See Figure 7. Install upper screw (7) in the fender support. Tighten screw finger-tight. 2. Install the lower screw (4 or 5) with the saddlebag guard, washer (9) and locknut (6) inside the frame. Tighten screw finger-tight. 3. Tighten the upper screw to 30 ft-lbs (41 Nm) . 4. Tighten the lower screw to 40 ft-lbs (54 Nm) . Tighten nut to 30 ft-lbs (41 Nm) . 5. 2005 – 2006 Models: a. Loosely install the exhaust header bolts. b. See Figure 4. Loosely install two rear muffler bracket bolts (1). c. See Figure 3. Loosely install bolt securing exhaust system (2) to support bracket (3). d. Tighten exhaust header bolts following the instructions in the appropriate Service Manual. e. Tighten support bracket bolt and rear muffler bracket bolts following the instructions in the appropriate Service Manual. f. Tighten exhaust shields following the instructions in the appropriate Service Manual. 6. Install saddlebag (if removed) following the instructions in the appropriate Service Manual or Instruction Sheet. 1 2 3 4 is05333 1. Lower saddlebag guard screw 2. Upper saddlebag guard screw 3. Saddlebag guard 4. Exhaust support bracket Figure 5. Install Saddlebag Guard – Right Side Shown (2005 Models) -J04645 2 of 4
2 1 3 4 is05332 1. Lower saddlebag guard screw 2. Upper saddlebag guard screw 3. Saddlebag guard 4. Frame tab Figure 6. Install Saddlebag Guard – Right Side Shown (2007-Later Models) Left Side 1. Loosely install upper screw (7) through the saddlebag guard and the fender support. NOTE Spacer (8) must be installed with the chamfer facing out. 2. See Figure 7. For 2005-2006 Models: Install lower screw (3) through the saddlebag guard, saddlebag guard spacer (8), footpeg support and the frame. Tighten to 30 ft-lbs (41 Nm) . For 2007 and later Models: Install lower screw (10) through the saddlebag guard, footpeg support and the frame. Tighten to 30 ft-lbs (41 Nm) . 3. Tighten upper screw to 30 ft-lbs (41 Nm)

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BMW R1200RT Sport/ Touring 1100X Kit Installation Manual

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Filed Under (BMW) by admin on 17-12-2010

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Step 1 — Locate ‘mold circle’ indentation on each side fairing panel (Pic 1). With panel mounted on bike, this indentation is center, at rear inside panel edge, and faces inside. Temporarily install bracket as shown in (Pic 2), align bottom bracket hole over indentation and mark for hole. Remove brackets at this time. Step 2 — Remove fairing body side panels. Four screws per side required for removal, see owners manual. Drill a 3/8″ hole at mark. If harness kit has not been installed, do not re-install left side panel until finished unless you remove tank to install harness. Removal of the tank is the best option to route harness from battery area to front of the bike. Step 3 — As required, re-install fairing body side panels. Do not re-install the top factory inner panel Torx Screw yet, as you will re-use this screw to secure the top light bracket mounting hole to the fairing panel. Step 4 — Using 10/32×1/2 screws and black shoulder washers from Hardware package, secure lights to PIAA Ezy-Mount® brackets (See Pics 3 & 4). Right side bracket is stamped ‘EZY-MOUNT’. See note below for Powersports lights. Due to close proximity of the light body to fairing side panel, access to the vertical adjustment screw on the panel side of the light will not be possible after installation. To prepare for this; before installing bracket/light assembly to panel, make sure this screw is tightened so that you can barely move the light body. After bracket is installed, final vertical adjustment can be secured with the inside screw. Torque on this screw is adequate to hold vertical adjustment, and the screw that faces the panel will not come loose. NOTE: WHEN INSTALLING POWERSPORTS LIGHTS, YOU MUST INSERT THE SHOULDER ADAPTER WASHER INTO THE LIGHT FOOT, BEFORE INSERTING SCREW TO SECURE LIGHT FOOT TO BRACKET. THIS ADAPTER CENTERS LIGHT FOOT OVER PEMNUT (TIGHTEN THIS SCREW SECURELY). Step 5 — Insert well nut into previously drilled 3/8″ hole. Place bracket assembly against fairing, aligning top hole with the top fairing mounting position; re-install the factory Torx screw at this location. Adjust as necessary and install the second supplied SS 10/32 x 5/8 Torx screw thru the lower bracket mounting hole to the well nut. With constant pressure on the screw, tighten securely. Constant pressure ensures that the rear expandable section of the well nut captures the back of the plastic inner panel as you tighten the screw. Future removal of fairing panels is now possible with light assembly installed (utilizing the bottom bracket mounting screw), thus re-alignment of lights is not required after normal maintenance.

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Dellorto Motorcycle Carburetor Tuning Guide INSTALLATION

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Filed Under (Tips and Review) by admin on 01-02-2012

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The main Carburetor functions are: • To form a proper homogeneous inflammable mixture of fuel and air • To supply the engine with varying amounts of this mixture The fuel-air mixture is formed through vapourising and by uniformly spraying fuel into the airstream or at least by atomising it into very small droplets. Atomization takes place in this way: liquid fuel from the atomiser nozzle meets the flow of air which carries it, broken into very fine droplets, to the combustion chamber. We have spoken of a “proper” mixture because the mixture strength, defined as the amount of air in weight mixed with a fuel unit of weight, must have a precise value, ie it must be within the limits of inflammability so that the mixture can be easily ignited by the spark in the combustion chamber. lnflammmability limits for commercial petrol are: 7: 1 (rich limit ie. 7 kgs of air and 1 kg of petrol) , down to 20: 1 (lean limit ie. 20 kgs of air and 1 kg of petrol) . To obtain optimum combustion between these inflammability limits, a value very close to the so- called stoiciometric value is needed ie. about 14.5 – 15.0 kgs of air to 1 kg of petrol. A stoiciometric mixture ratio is one which ensures complete combustion of fuel with only the formation of water and carbon dioxide. The stoiciometric mixture ratio depends on the kind of fuel used, so if the fuel is changed, this fuel- air ratio will also change (see SECTION 5.1 ) .

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HONDA CR250R Owner’s Manual

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Filed Under (Honda) by admin on 24-04-2011

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l. CONTROLS( 1 ) Frontbralte tever (2) Throttle grip ( 3 ) Engine stop switch When shutting off engine, press in the  engine stop switch button. (4 ) Rear brake pedal ( 5 I Kickstarter pedal ( 6 } Clutch lever (1′) Fuel tank filler cap ( 8) Gear change pedal The transmission has S speeds. Depress the pedal to Shift into [st gear. Raise the pedal to shift into 2nd, 3rd, 4th and 5th. Neutral is located between 1st and 2nd.  9 ) Fuel mixture enrichment l-mob When starting a cold engne, raise the fuel mixture knob and fully depress the kickstarter pedal. (10) Fuel valve When the fuel valve is turned to "OFF", fuel cannot Flow from the fuel tank to the carburetor. When the fuel valve is turned to “ON”, fuel will flow from the tank to the carburetor. (1 1] Rear shock absorber adjuster The rear shock absorber springs have three settings for precise adjustment of the rear suspension to suit riding conditions and differences in rider weight. Page 6 2 l. OPERATING – Fig. l—2 (1) Fuel tank -  2. FUEL The Honda CRZSUR ELSINORE has a two-stroke engine that requires a gasoline-oil mixture. The capacity of the “fuel tank is 8.59 (2.2 US gal. 1.9 Imp. gal). I Any automotive gasoline with :1 pump octane number of 86 or higher. or research octane number of9i or higher‘ may he used. If “l ofgasoline or a higher octane grade. USE HONDA 2-STROKE INJECTOR OIL OR EQUIVALENT. I Premix gasoline and oil in a ratio of   20:1 Prepare the fuel mixture in a clean container, and shake until thoroughly mixed before Flling the fuel tank. i Too much oil will muse excessive smoking and spark plug fouling. Too little oil will cause engine damage or premature wear. Mix fuel in a ratio of 20 parts gasoline to 1 part oil. I Vegetable oils separate from gasoline more easily than mineral oils, especially in cold weather. It is advisable to use mineral oil when ambient temperatures of below 0°C (32°F) are expected. I If the gasoline-oil mixture is left standing in a container for a long period of time, lubricity will deteriorate. Use the mixture within 24 hours. I Once an oil container is opened, the oil must be used within one month, since oxidation may occur. Do not mix vegetable and mineral oils. Gasoline is flammable and explosive under certain conditions. Always stop the engine and do not smoke or allow open flames or sparks near the motorcycle when refueling

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KTM 125/ 200/ 250/ 300 SX, MXC, EXC SERVICE MANUAL

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Filed Under (KTM) by admin on 28-11-2010

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Compression damping of shock absorber (MXC, EXC) The compression damping (during compression) can be adjusted for the MXC and EXC shock absorbers (Mono Compression Control). The degree of damping can be adjusted by turning adjusting screw 1 with a screwdriver. Turning in a clockwise direction will increase the damping, turning in a counterclockwise direction will decrease the damping. STANDARD ADJUSTMENT: -Turn the adjusting screw clockwise to the stop. -Then turn the adjusting screw counterclockwise, counting the number of clicks that corresponds to the respective type of shock absorber. Type White Power 1218X757…………..17 clicks Type White Power 1218X759…………..17 clicks * WARNING * THE DAMPING UNIT OF THE SHOCK ABSORBER IS FILLED WITH HIGH – COMPRESSION NITROGEN . NEVER TRY TO TAKE THE SHOCK ABSORBER APART OR TO DO ANY MAINTEN – ANCE WORK YOURSELF . SEVERE INJURIES COULD BE THE RESULT . NEVER UNSCREW THE BLACK SCREW 2 CONNECTION (24 MM ). Rebound damping of shock absorber (SX, MXC, EXC) By using the adjusting screw 3 , the degree of damping of the rebound can be adjusted. Turn the knob to the right side to increase damping, turn it to the left side to reduce damping during rebounding. STANDARD ADJUSTMENT: -Turn the adjusting screw clockwise to the stop. -Then turn the adjusting screw counterclockwise, counting the number of clicks that corresponds to the respective type of shock absorber. Type White Power 1218X756…………..28 clicks Type White Power 1218X757…………..28 clicks Type White Power 1218X759…………..26 clicks * WARNING * THE DAMPING UNIT OF THE SHOCK ABSORBER IS FILLED WITH HIGH – COMPRESSION NITROGEN . N EVERTRYTOTAKETHESHOCKABSORBERAPARTORTODOANYMAINTE – NANCE WORK YOURSELF . SEVERE INJURIES COULD BE THE RESULT . NEVER UNSCREW THE BLACK SCREW 4 CONNECTION (15 MM )

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