preparing a chinese carburetor for installation

You search Auto repair manual PDF preparing a chinese carburetor for installation, if there are search results will appear below. If search results do not exist, please search by others keyword.



  preparing a chinese carburetor for installation Direct Download speed 5282 Kb/s

  preparing a chinese carburetor for installation Full Version speed 6162 Kb/s



HSR Carburetor Total Kits Installation Instructions

0

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

download
Intake Manifold: 1. Install MAP sensor in Mikuni manifold (Twin Cam only). 2. Attach the Mikuni manifold to the engine. Align the manifold before tightening the bolts. The flange surface of the Mikuni manifold should be parallel with the front of the engine’s cam cover. Use a level or angle meter to check this. Tighten the manifold bolts. 3. Attach the rubber flange to the Mikuni manifold with the furnished 5/16″x3/4″ bolts and washers. Choke Cables: Mikuni & Harley-Davidson Route the cable with largest radius bends possible. Check the cable for free-play after installation. If there is no free-play, the engine may run rich and deliver poor performance or low fuel mileage. Harley Cable (Twin Cam Kits: 42-19, 45-4) : 1. Remove the Harley choke cable from the stock carb. 2. Remove the spring and plunger from the cable. 3. Remove the spring and plunger from the Mikuni. 5. Install the Mikuni spring and plunger onto the Harley choke cable. Change nothing else; be sure to use the Harley plastic nut, not the Mikuni nut (See Figure 1). Total Kit Installation Instructions The HSR series carburetors are precise yet durable instruments; however, like any other piece of fine equipment, they require correct installation and reasonable care to assure optimum performance and long life. Extra time spent during installation will pay off in both short and long term performance and reliability. This Mikuni HSR carburetor kit is designed to be a bolt-on application, and as such, is set-up and jetted properly for most applications. However, since Harley-Davidson motors are often highly modified, alternate tuning settings may be required. The Mikuni Tuning Manual helps make jetting alterations and adjustments an easy matter. NOTE: Carburetor Kits not designated as C.A.R.B. exempt, are not legal for motor vehicles operated on public highways in the state of California, or in any other states and countries where similar laws apply. WARNING NOTE: NOTE: WARNING CAUTION NOTE: NOTE: TK-2 6. Install the new assembly into the Mikuni carburetor. Be careful to only gently tighten the plastic nut. 7. Loosen the knurled plastic friction nut behind the choke knob and check for free-play (see Figure 2). Figure 1: Harley nut with Mikuni spring & plunger Figure 2: Choke cable adjustments Mikuni Cable (Evo Kits: 42-8, 45-2 & 45-3) : 1. Remove nut, spring and plunger from the Mikuni. 2. Install the nut, spring and plunger onto the cable. 3. Install the assembly into the Mikuni HSR carburetor. Be careful to only gently tighten the plastic nut. 4. Check for free-play. Adjust the cable as necessary. An optional choke cable mounting bracket is included in the Evo kits for custom installations. Carburetor Installation: 1. Insert the carb fully into the rubber flange, align with engine and tighten the clamp. 2. Slip the fuel hose onto the carburetor’s fuel fitting and secure with the enclosed hose clamp. NOTE: Some Twin Cam installations may require removal of a small amount of fin material from the cylinders to clear the float bowl. Throttle Cables The HSR carburetor uses stock 1990 and later Harley- Davidson cables. However, if your Harley is fitted with some other carburetor, you may need to purchase a set of cables. See your dealer for the correct cable set. 1. Route the throttle cables with large radius curves and so they do not interfere with other components. 2. Screw the cable adjusters together to make them as short as possible. 3. Connect the “close” cable first (see Figure 3). 4. Install the “open” cable next (see Figure 3). 5. Adjust the opening cable until the slide can be opened fully. Snug the adjuster lock nut. 6. Turn the handlebar to the right and adjust the throttle free-play with the closing cable adjuster to approximately 1/8″ (see Figure 4)

Incoming search terms:

HARLEY DAVIDSON BIG TWIN SPIGET MOUNT CARBURETOR INSTALLATION MANUAL

0

Filed Under (Harley Davidson) by admin on 26-03-2012

download
A. BEFORE INSTALLATION OF YOUR NEW ZENITH CARBURETOR, NSPECT THE RUBBER MANIFOLD SEAL FOR NICKS,CRACKS, OR DEBRIS. APPLYING A LIGHT FILM OF PETROLEUM BASED LUBRICANT AROUND THE INSIDE LIP OF THE RUBBER SEAL WILL ALLOW THE CARBURETOR TO SLIP INTO PLACE EASIER. B. BEFORE ACTUAL INSTALLATION OF UNIT INTO MANIFOLD, THROTTLE CABLES SHOULD BE HOOKED TO THETHROTTLEWHEEL.MAKESURETHATTHE PULL CABLE IS LOCATEDPROPERLY TO OPEN THE THROTTLE PLATE (IN SOME APPLICATIONS THROTTLE CABLE SLACK MAY NEED TO BE ADJUSTED FOR PROPER HOOKUP AND OPERATION) SEE FIG. #1 C. AFTER THROTTLE CABLES ARE PROPERLY HOOKED UP,UNITCAN BE INSERTED INTO MANIFOLD. MAKE SURE THAT UNIT IS FULLY SEATED. WITH CARBURETOR SEATED INTO MANIFOLD AND FUEL LINE HOOKED UP TO FUEL INLET, INSTALL CHOKE CABLE AND HOOK TO CHOKE LEVER. PLACE AIR INTAKE GASKET ON END OF CARBURETOR, NEXT PLACE INTAKE ADAPTOR OVER INTAKE GASKET. SEE FIG#2 ZENITH MOD.16P12 SPIGET MOUNT CARBURETOR -HARLEY DAVIDSON ™ BIG TWIN INSTALLATION INSTRUCTIONS FIG. # 1 FIG. # 2 D. WITH ADAPTOR IN PLACE, LOCATE THE STOCK AIR BOX OVER THE ADAPTOR, UTILIZING THE STOCK AIR BOX GASKET (THERESHOULDBENO GAPS BETWEEN ADAPTOR, AIRBOX OR CARBURETOR WHEN PROPERLY INSTALLED) STAND-OFF SPACERS PROVIDED ARE TOBEPLACEDBETWEENAIR BOX& ENGINE HEADS BEFORE INSTALLING THE VENT/RETAINING BOLTS. FOR EVALUATION ENGINES STOCK VENT BOLTS CAN BE USED WITH LARGERI.D. SPACER PROVIDED. SEE FIG#3 E. WITH AIR BOXSECURELY IN PLACE, INSTALL THE AIR FILTER COVER RETAINING BRACKET AND FILTER USING THE STOCKBOLTS, AND REPLACE AIR FILTER COVER AND SECURE WITH STOCK BOLT. SEE FIG#4 F. AFTER INSTALLATION IS COMPLETE AND FUEL FLOW HAS BEEN RE-ESTABLISHED, CHECK FOR ANY LEAKS BEFORE STARTING ENGINE. H. AFTER STARTING ENGINE, SOME ADJUSTMENTS OF IDLE AND MAIN JET MAYBE REQUIRED FOR PROPER OPERATION. AFTER ADJUSTMENTS HAVE BEEN MADE AND WITH ENGINEAT IDLE, TURN WHEEL FULLYTOLEFTANDRIGHT.ANYCHANGEIN IDLE SPEED INDICATES THROTTLE CABLES ARE TOO TIGHT AND MORE SLACK MUST BE PROVIDED.

Incoming search terms:

HSR Carburetor Total Kits Installation And Tuning Manual

0

Filed Under (Tips and Review) by admin on 31-10-2010

download
1. Disconnect the battery ground wire from the battery. 2. Turn the fuel petcock to the “OFF” position. 3. Elevate the rear of the fuel tank for better access to the carburetor area. 4. Remove the coil, horn or other devices on the left hand side of the engine to allow free access to the intake manifold bolts. 5. Remove the complete air cleaner assembly, including the backing plate. 6. Disconnect any vacuum hoses and the fuel hose from the stock carburetor. 7. Disconnect the choke cable from the frame. 8. Remove the stock carburetor. 9. Evo: remove the stock manifold. 10. Twin Cam: unplug MAP sensor, remove manifold and then remove the MAP sensor from the manifold. Installation: Intake Manifold: Twin Cam only: Install MAP sensor in Mikuni manifold. 1. Attach the Mikuni manifold to the engine. Align the manifold before tightening the bolts. The flange surface of the Mikuni manifold should be parallel with the front of the engine’s cam cover. Use a level or angle meter to check this. Tighten the manifold bolts. 2. Attach the rubber flange to the Mikuni manifold with the 5/16″x3/4″ bolts and washers. To ease installation, use liqiud detergent to lubricate the manifold seals. Choke: Evo: We recommend that you use the Mikuni choke cable that is furnished with the carburetor. However, you can use the stock Harley cable (’90-’99 models only) if you follow the Twin Cam choke cable instructions. Twin Cam: 1. Remove the Harley choke cable from the stock carb. 2. Remove the Harley spring and plunger from the Harley choke cable. 3. Remove the Mikuni spring and plunger from the Mikuni carburetor. 5. Install the Mikuni spring and plunger onto the Harley choke cable. Change nothing else; be sure to use the Harley plastic nut, not the Mikuni nut. 6. Install the new assembly into the Mikuni. Be careful to only gently tighten the plastic nut.

Incoming search terms:

HOVELHEAD & IRONHEADXL 42mm Mikuni Carburetor And Manifold Kit INSTALLATION Instructions

0

Filed Under (Tips and Review) by admin on 31-10-2010

download
THROTTLE CABLE ADJUSTMENT A) Rotate the throttle grip to the full open position, look into the throttle bore and see if the throttle valve (slide) opens completely. If the throttle valve does not open completely unscrew the adjuster on the opening cable until it does. This adjustment should be made carefully to assure maximum carburetor performance. After adjustment tighten the adjuster jam nut. B) After adjusting the open cable, adjust throttle freeplay with the closing (idle) cable to approximately 1/8″ an indicated in the following illustration. note It is very important to adjust the cables in the preceding described manner to ensure that the idle cable operates correctly for safety. It must close the throttle completely 2 PLEASE NOTE USE CAUTION PLEASE NOTE SAFETY WARNING pull open cable pull close cable SHOVELHEAD/IRONHEAD XL Installation Instructions Check and make sure that the throttle cables are routed properly by rechecking the throttle play as the handlebars are turned from side-to-side; the amount play should remain consistent. C) After the throttle cables have been adjusted, make sure that all the lock nuts are securely tightened. 5. AIR CLEANER A) The air filter bracket is attached to the crankcase with 1 long bolt, and a bracket-spacer. Removed the crankcase nut located between the tappet blocks & replace it with the enclosed bracket spacer; tighten the spacer securely. B) Remove the stud protectors from the K&N filter and place the two backing plates on the studs. Now slip the the filter onto the carburetor. C) Attach the 2 long brackets to the air filter studs with the enclosed nuts & flat washers, and to the bracket spacer with the enclosed bolt using the lock washers, and flat washers. When the carburetor and air cleaner are properly aligned, securely tighten all of the mounting hardware including the intake manifold clamps. In some cases it may be necessary to bend the brackets slightly to arrive at the correct fit. D) Use the enclosed hose clamps to secure the fuel hose to the petcock, and the HSR carburetor. The screw clamp goes on the petcock end and the spring clamp attaches to the carburetor end. E) Attach the chrome air filter cover with the enclosed socket head screw. 7. CHOKE CABLE INSTALLATION A) Attach the Mikuni choke cable bracket to the original choke cable bracket on the air cleaner stud with the enclose hardware as illustrated

Dellorto Motorcycle Carburetor Tuning Guide and INSTALLATION

0

Filed Under (Tips and Review) by admin on 04-02-2012

download
Installation angles The tapered-needle-type Carburetor s with concentric, central float chambers have a horizontal main barrel and can be mounted up to a maximum inclination of 40 degrees from the horizontal (figure 3) . For
applications on motocross and trials engines, etc, this inclination should be 30 degrees or less. fig. 3 2.4 Engine connections The Carburetor is usually connected to the engine with one of the following : Male clamp fixing : the male clamp connection used for the flexible fixing of the Carburetor to the engine is usually recommended on motorcycles for motocross, trials, etc or fitted to engines which run to high rpm or those which produce strong vibrations. fig. 4 Female clamp : the female clip connection and the flange connection, with a rigid fitting to the engine, are usable on road motorcycles or fitted to engines which do not generate very strong vibrations

Incoming search terms:

HARLEY DAVIDSON 80-SPOKE REAR WHEEL KIT INSTALLATION MANUAL

0

Filed Under (Harley Davidson) by admin on 31-03-2011

download
Additional Parts Required This kit includes the custom wheel only. Proper installation of this kit requires the separate purchase of the following parts which are available at a Harley-Davidson dealer: •Wheel Bearing Remover and Installer (HD-44060) •Wheel Installation Kit (See Service Parts Tables for part number) The following Harley-Davidson Genuine Motor Accessories are recommended for proper maintenance and cleaning: •Harley® Bright™ Chrome Cleaner (94683-99) •Harley® Glaze™ Polish and Sealant (99701-84) •Harley®Wheel and Spoke Brush (43078-99) •Harley-Davidson®Wheel and Tire Cleaner (94658-98) The rider’s safety depends upon the correct installation of this kit. Use the appropriate service manual procedures. If the procedure is not within your capabilities or you do not have the correct tools, have a Harley-Davidson dealer perform the installation. Improper installation of this kit could result in death or serious injury. (00333a) NOTE This instruction sheet references Service Manual information. A Service Manual for your model motorcycle is required for this installation and is available from a Harley-Davidson Dealer. Kit Contents See the Service Parts section for kit contents. INSTALLATION 1. Remove existing rear wheel assembly. Save axle, axle nut, brake disc and wheel spacers for kit installation. NOTE Remove the rear brake caliper before removing the wheel. Do not re-use sprocket mounting screws. Re-using sprocket mounting screws can result in torque loss and damage to the sprocket and/or belt assembly. (00480b) 2. Install the tube and tire on wheel. Refer to REAR WHEEL in the Service manual. Do not re-use brake disc screws. Re-using disc screws can result in torque loss and damage to rotor and/or brake assembly. (00319b) NOTES Install the primary bearing first using appropriate Service Manual and WHEEL BEARING REMOVER/INSTALLER. 3. Assemble wheel installation kit components and brake disc(s) to wheel, using the appropriate service parts table. Refer to REAR WHEEL in Service Manual. 4. Install rear wheel (1), stock axle and stock axle nut. Refer to REAR WHEEL in Service Manual

Incoming search terms:

KTM 60 SX / 65 SX REPAIR MANUAL ENGINE

0

Filed Under (KTM) by admin on 12-11-2010

download
Carburetor adjustment Basic information about the original carburetor setting The original carburetor setting was adapted for an altitude of approx. 500 meters (1600 ft.) above sea level, and the ambient temperature of approx. 20°C (68°F), mainly for off-road use and central European premium-grade fuel (ROZ 95). Mixing ratio 2-stroke motor oil : super fuel 1:40 . Basic information of changing the carburetor setting Always start out from the original carburetor setting. Essential requirements are a clean air filter system, air-tight exhaust system and an intact carburetor. Experience has shown that adjusting the main jet, the idling jet and the jet needle is sufficient and that changes of other parts of the carburetor will not greatly affect engine performance. RULE OF THUMB: high altitude or high temperatures  choose leaner carburetor adjustment low altitude or low temperatures  choose richer carburetor adjustment * WARNING * -ONLYUSE PREMIUM – GRADE GASOLINE ROZ 95 MIXED WITH HIGH – GRADE TWO – STROKE ENGINE OIL . OTHER TYPES OF GASOLINE CAN CAUSE ENGINE FAILURE , AND USE OF SAME WILL VOID YOUR WARRANTY . -ONLYUSE HIGH – GRADE 2- STROKE ENGINE OIL OF KNOWN BRANDS ( I . E .SHELL ADVANCE RACING X). -NOTENOUGH OIL OR LOW – GRADE OILCAN CAUSE EROSION OF THE PISTON . USING TOO MUCH OIL , THE ENGINE CAN START SMOKING AND FOUL THE SPARKPLUG . -INTHE CASE OFA LEANER ADJUSTMENT OF THE CARBURETOR PROCEED CAUTIOUSLY . ALWAYSREDUCETHEJETSIZEINSTEPSOFONENUMBERTOAVOID OVERHEATING AND PISTON SEIZURE . NOTE: If despite a changed adjustment the engine does not run properly, look for mechanical faults and check the ignition system. Basic information on carburetor wear As a result of engine vibrations, throttle valve, jet needle, and needle jet are subjected to increased wear. This wear may cause carburetor malfunction (e.g., overly rich mixture). Therefore, these parts should be replaced after 1000 hours of using. Idling range – A Operation with closed throttle valve. This range is influenced by the idle adjusting screw 1 . Only make adjustments when the engine is hot. The idling speed can be changed by turning the idle adjusting screw. Turning it clockwise produces a higher idling speed and turning the screw counterclockwise produces a lower idling speed. Opening up – B Engine behavior when the throttle opens. The idle jet and the shape of the throttle valve influences this range. If, despite good idling-speed and part-throttle setting, the engine sputters and smokes when the throttle is fully opened and develops its full power not smoothly but suddenly at high engine speeds, the mixture to the carburetor will be too rich, the fuel level too high or the float needle is leaking. Part-throttle range – C Operation with partly open throttle valve. This range is only influenced by the jet needle (shape and position). The optimum part-throttle setting is controlled by the idling setting in the lower range and by the main jet in the upper range. If the engine runs on a four-stroke cycle or with reduced power when it is accelerated with the throttle partly open, the jet needle must be lowered by one notch. If then the engine pings, especially when accelerating under full power at maximum engine revs, the jet needle should be raised. If these faults should occur at the lower end of the part throttle range at a four-stroke running, make the idling range leaner; if the engine pings, adjust the idling range richer

Incoming search terms:

HONDA ATV Carburetor Repair Kits Installation

0

Filed Under (Honda) by admin on 21-12-2011

download
ATV Carburetor Repair Kits Complete kits to rebuild one OEM carburetor. Each kit contains necessary gaskets/o-rings, needle valve or needle valve set, and jets. Made in Japan. Note: Check all parts before installation. Honda Model Year Order No AT C70 78-85 025-001 AT C90 70-71 025-003 ATC90K1/K2/K3 72-75 025-003 AT C90 76-78 025-003 TRX90 Fourtrax 90 93-98 025-084 ATC110 79-83 025-005 ATC110 84-85 025-061 ATC125M 84-85 025-062 TRX125 Fourtrax 85-86 025-050 TRX125 Fourtrax 87-88 025-063 ATC185 1980 025-009 ATC185S 81-83 025-009 AT C200 81-82 025-008 AT C200 1983 025-009 ATC200E Big Red 82-83 025-064 ATC200ES Big Red 1984 025-064 AT C200M 84-85 025-064 AT C200S 84-86 025-065 AT C200X 83-85 025-012 AT C200X 86-87 025-014 TRX200 Fourtrax 200 90-91 025-066 TRX200D Fourtrax 200 Type II 1991 025-066 TRX200D Fourtrax 200 Type II 92-93 025-067 TRX200D Fourtrax 200 Type II 94-97 025-068 TRX200SX Fourtrax 87-88 025-069 ATC250R 81-82 025-017 ATC250R 83-84 025-018 AT C250R 1985 025-019 ATC250ES Big Red 85-87 025-029 AT C250SX 1985 025-070 TRX250 Fourtrax 250 1985 025-071 TRX250 Fourtrax 250 86-87 025-072 TRX250EX Sportrax 250EX 01-04 025-085 TRX250R Fourtrax 250R 86-87 025-060 TRX250R Fourtrax 250R 1988 025-073 TRX250X 91-92 025-074 TRX300 Fourtrax 300 1988 025-075 TRX300 Fourtrax 300 91-92 025-076 TRX300 Fourtrax 300 93-95 025-078 Honda Model Year Order No TRX300EX Fourtrax 300EX 93-98 025-081 TRX300FW Fourtrax 300 4×4 1988 025-075 TRX300FW Fourtrax 300 4×4 91-92 025-076 TRX300FW Fourtrax 300 4×4 93-95 025-078 AT C350X 1985 025-035 TRX350 Fourtrax 4×4 86-87 025-079 TRX350FE Fourtrax Rancher 4×4 ES 00-03 025-082 TRX350FM Fourtrax Rancher 4×4 00-03 025-082 TRX350TE Fourtrax Rancher ES 00-03 025-082 TRX350TM Fourtrax Rancher 00-03 025-082 TRX350D Fourtrax Foreman 4×4 87-89 025-079 TRX400FW Fourtrax Foreman 95-00 025-080 TRX450ES Fourtrax Foreman ES 98-01 025-083 TRX450FE Fourtrax Foreman ES 02-03 025-083 TRX450FM Fourtrax Foreman S 02-03 025-083 TRX450S Fourtrax Foreman S 98-01 025-083 TRX500FAFourtrax Rubicon 01-04 025-086

Incoming search terms:

Steering Stem Nut Installation Instructions & Owners Manual

0

Filed Under (Tips and Review) by admin on 26-11-2010

download
Sport Bike Damper Kit Installation Instructions DISCLAIMER: All GPR Sport Bike damper kits are manufactured to be used ONLY w/ the stock top triple clamp and frame. If either is modded, aftermarket or crash damaged, the kit will not install properly and GPR will not be held responsible for the consequences of improper installation due to this or any other improper mounting or modifying. The provided instructions must be followed precisely, as failure to do so can result in the GPR damper kit being installed incorrectly. An improper installation may lead to a variety of undesirable steering problems. Please take your time and carefully follow the installation instructions. As always, give us a call if you have any questions, we’re more than happy to assist you in getting the damper kit mounted on your bike properly 1. Remove the stock Steering Stem Nut (SSN) and washer from the stock top triple clamp steering stem. Carefully set the stock nut aside, as you may be using it later. Bikes requiring a specific GPR SSN to replace the stock SSN are listed at the end of this installation sheet. If your bike is on the chart, throw you stock SSN in the toolbox along w/ the washer, as you may need it at a later date if for any reason you need to remove the GPR kit from your bike. Stock SSN’s that are either ‘domed’ at the top or ‘flanged’ at the bottom will definitely NOT work, may lead to problems and should NOT be reinstalled during the baseplate installation. See #2 below for further instructions about both SSN/Steering stem and arm clearance issues 2. With the stock SSN and washer removed, place the GPR Baseplate over the steering stem on the top triple clamp and reinstall either the stock SSN or the GPR SSN provided. Torque SSN down to the recommended specs as per the owner’s manual for your particular bikes make and model. NEVER reinstall the stock washer that came on the bike! The baseplate is now your new washer. If you do accidentally use the stock washer, the arm on the stabilizer will most likely ‘rub’ on the nut. It will be too high, potentially locking the steering and handlebars, thus making your bike un steerable and unridable. DO NOT ride your bike until all installation steps have been completed and you can visually verify that there is clearance between the arm of the stabilizer and the steering stem and/or SSN. Once the installation is complete, at the #1 setting you

Incoming search terms:

Harley-Davidson MOBILE RADIO & CONTROL UNIT Installation Manual

0

Filed Under (Harley Davidson) by admin on 22-03-2012

download
Installation of the ORION mobile radio and control unit consists of: •Assembling and installing the weather resistant motorcycle case assembly, including the adapter bracket, case/antenna mounting bracket, and bottom case (previously assembled) to the motorcycle mounting bracket (user supplied). •Installing the radio in the radio mounting bracket located inside the weather-resistant case, •Installing the control unit, microphone, and speaker •Installing the antenna •Routing the power, control, and option cables •Connecting all cables including: power, control, and option cables. •Installing the Headset Option •Operational check All mounting hardware consists of stainless steel screws, locknuts, nuts, and lockwashers to resist corrosion. TOOLS REQUIRED •Socket wrench set U.S./metric with 3″ extender •Open end wrench, adjustable •Wire clippers •TORX BIT set, small metric 13
EQUIPMENT INSTALLATION Assembling & Installing The Weather Resistant Case As- sembly The motorcycle Weather Resistant Case Assembly may be installed on almost any motorcycle. Installation instructions provided here include information for the Harley-Davidson Dyna and Road King models and the Kawasaki K1000. Figure 5 illustrates installation on Harley-Davidson motorcycles while Figure 6 illustrates installation on a Kawasaki K1000. Refer to these diagrams during installation. Installation on other motorcycles is at the discretion of the installer. Harley-Davidson Installation 1. Unpack the weather resistant motorcycle case, remove the key taped to the top cover and open the case. 2. Refer to Figure 5 and verify that all components shown in the diagram are available. 3. Mount the adapter bracket onto the Dyna or Road King radio mounting bracket (user supplied) using the 1/4-20 x 5/8 screws provided

Incoming search terms: