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- Yamaha
- Outboard Motor
- RAPTOR 50
- Owner's Manual
Yamaha RAPTOR 50 Owner's Manual
Summary of RAPTOR 50
Page 1
50 owner’s manual 63b-28199-1f u.S.A.Edition lit-18626-06-94 63b-9-1f hyoshi 06.2.16 9:21 ページ 1.
Page 2
Emu25060 zmu01690 read this owner’s manual carefully before operating your outboard motor. 63b-9-1f hyoshi 06.2.16 9:21 ページ 2.
Page 3: Important Manual Information
Important manual information emu31280 to the owner thank you for choosing a yamaha outboard motor. This owner’s manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you ob- tain maximum enjoyment from your ...
Page 4: Table of Contents
Table of contents general information .......................... 1 identification numbers record .......... 1 outboard motor serial number .......... 1 key number....................................... 1 emission control information ........... 1 north american models..................... 1 safety i...
Page 5: Table of Contents
Table of contents models .......................................... 33 shifting .......................................... 33 forward (tiller handle and remote control models) ............................. 33 reverse (automatic reverse lock and power trim and tilt models)..... 34 stopping engine ......
Page 6: General Information
1 general information emu25170 identification numbers record emu25183 outboard motor serial number the outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare ...
Page 7: General Information
General information 2 emu25262 manufactured date label this label is attached to the clamp bracket or the swivel bracket. Emu25362 safety information ● before mounting or operating the outboard motor, read this entire manual. Reading it should give you an understanding of the motor and its operation...
Page 8: General Information
General information 3 clude nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilat- ed. Avoid blocking exhaust outlets. ● check throttle, shift, and steering for prop- er operation before starting the engine. ● attach the engine stop switch lanyard cord to a secure place on yo...
Page 9: General Information
General information 4 emu25401 label warning ewm01260 ● be sure shift control is in neutral before starting engine. (except 2hp) ● do not touch or remove electrical parts when starting or during operation. ● keep hands, hair, and clothes away from flywheel and other rotating parts while engine is ru...
Page 10: General Information
General information 5 sel head-on) crossing: (you are traveling across the oth- er vessel’s path) overtaking: (you are passing or being passed by another vessel) in the following illustration, your boat is in the center. You should give the right-of-way to any vessels shown in white area (you are th...
Page 11: General Information
General information 6 bend that may obstruct the view of other wa- ter vessels, the operator should sound a pro- longed blast on the whistle (4 to 6 seconds). If another vessel is around the bend, it too should sound the whistle. Even if no reply is heard, however, the vessel should still pro- ceed ...
Page 12: General Information
General information 7 emu25540 fueling instructions warning ewm00010 gasoline and its vapors are high- ly flammable and explosive! ● do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. ● stop engine before refueling. ● refuel in a well-ventilated area. Refue...
Page 13: General Information
General information 8 dry rags. ● do not overfill the fuel tank. ● tighten the filler cap securely after re- fueling. ● if you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention. ● if any gasoline spills onto your skin, im- med...
Page 14: General Information
General information 9 speed is too high or too low for good engine performance, this will have an adverse effect on the engine. Yamaha outboard motors are fitted with pro- pellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch woul...
Page 15: Basic Components
10 basic components emu25799 main components note: * may not be exactly as shown; also may not be included as standard equipment on all mod- els. 50 emu25802 fuel tank if your model was equipped with a portable fuel tank, its function is as follows. Warning ewm00020 the fuel tank supplied with this ...
Page 16: Basic Components
Basic components 11 tions. Emu25830 fuel joint this joint is used to connect the fuel line. Emu25841 fuel gauge this gauge is located on either the fuel tank cap or on the fuel joint base. It shows the ap- proximate amount of fuel remaining in the tank. Emu25850 fuel tank cap this cap seals the fuel...
Page 17: Basic Components
Basic components 12 emu26201 neutral interlock trigger to shift out of neutral, first pull the neutral in- terlock trigger up. Emu26211 neutral throttle lever to open the throttle without shifting into ei- ther forward or reverse, put the remote con- trol lever in the neutral position and lift the n...
Page 18: Basic Components
Basic components 13 emu25941 throttle grip the throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed. Emu25961 throttle indicator the fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each...
Page 19: Basic Components
Basic components 14 when constant speed is desired, tighten the adjuster to maintain the desired throttle set- ting. Emu25990 engine stop lanyard switch the lock plate must be attached to the en- gine stop switch for the engine to run. The lanyard should be attached to a secure place on the operator...
Page 20: Basic Components
Basic components 15 emu26090 main switch the main switch controls the ignition system; its operation is described below. ● “ ” (off) with the main switch in the “ ” (off) posi- tion, the electrical circuits are off, and the key can be removed. ● “ ” (on) with the main switch in the “ ” (on) posi- ti...
Page 21: Basic Components
Basic components 16 emu26151 power trim and tilt switch on bottom engine cowling the power trim and tilt switch is located on the side of the bottom engine cowling. Press- ing the switch “ ” (up) trims the outboard motor up, then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor d...
Page 22: Basic Components
Basic components 17 emu26261 trim rod (tilt pin) the position of the trim rod determines the minimum trim angle of the outboard motor in relation to the transom. Emu26340 tilt support lever for power trim and tilt or hydro tilt model to keep the outboard motor in the tilted up position, lock the til...
Page 23: Basic Components
Basic components 18 emu26470 tachometer this gauge shows the engine speed and has the following functions. Emu26491 digital tachometer the tachometer shows the engine speed and has the following functions. Note: all segments of the display will light momen- tarily after the main switch is turned on ...
Page 24: Basic Components
Basic components 19 rious engine damage will occur. Emu26581 overheat warning indicator (digital type) if the engine temperature rises too high, the warning indicator will start to blink. For fur- ther information on reading the indicator, see page 20. Caution: ecm00050 do not continue to run the en...
Page 25: Basic Components
Basic components 20 engine has been run. It can be set to show the total number of hours or the number of hours for the current trip. The display can also be turned on and off. ● changing the display format ● pressing the “ ” (mode) button chang- es the display format in the following pat- tern: ● t...
Page 26: Basic Components
Basic components 21 emu26846 oil level warning and oil filter clogging warning oil injection models this engine has an oil level warning system. If the oil level falls below the lower limit, the warning system will activate. Activation of warning device ● engine speed will automatically decrease to ...
Page 27: Basic Components
Basic components 22 and finally oil filter clogging. 1. Oil filter zmu03366 1.
Page 28: Operation
23 operation emu26901 installation caution: ecm00110 incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising. Severe engin...
Page 29: Operation
Operation 24 motor greatly affects the water resistance. If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the en- gine to overheat. If the mounting height is too low, th...
Page 30: Operation
Operation 25 board (if packed). For details, consult your yamaha dealer. Warning ewm00650 avoid using bolts, nuts or washers other than those contained in the engine pack- aging. If used, they must be of at least the same quality of material and strength and must be tightened securely. After tighten...
Page 31: Operation
Operation 26 cool. 4. Remaining seven hours: run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time. 5. After the first 10 hours: operate the engine normally. Use only straight gasoline in the fuel tank. The yamaha oil injection system provides prope...
Page 32: Operation
Operation 27 caution: ecm00130 be sure to take the above steps when op- erating the engine after a long period of storage. Otherwise engine seizure could occur. Emu27233 filling fuel and engine oil emu27242 filling fuel for portable tank warning ewm00060 gasoline and its vapors are highly flam- mabl...
Page 33: Operation
Operation 28 emu27311 filling oil for electric start models warning ewm00530 do not add gasoline into the oil tank. Fire or explosion could result. This engine uses the yamaha oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operat- ing conditions. N...
Page 34: Operation
Operation 29 emu27321 oil level indicator operation the various functions of the oil level system are as follows: emu27350 electric start models emu27450 operating engine emu27461 feeding fuel (portable tank) warning ewm00420 ● before starting the engine, make sure that the boat is tightly moored an...
Page 35: Operation
Operation 30 tank cap, loosen it 2 or 3 turns. 2. If there is a fuel joint on the motor, firmly connect the fuel line to the joint. Then firmly connect the other end of the fuel line to the joint on the fuel tank. 3. If a steering friction adjuster is provided on your outboard motor, securely attach...
Page 36: Operation
Operation 31 gine stop switch. Warning ewm00120 ● attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg while operating. ● do not attach the lanyard to clothing that could tear loose. Do not route the lanyard where it could become entan- gled, preventing it fro...
Page 37: Operation
Operation 32 emu27662 electric start and remote control models 1. Place the remote control lever in neutral. Note: the start-in-gear protection device prevents the engine from starting except when in neu- tral. 2. Attach the engine stop switch lanyard to a secure place on your clothing, or your arm ...
Page 38: Operation
Operation 33 again. Note: ● when the engine is cold, it needs to be warmed up. For further information, see page 33. ● if the engine is warm and fails to start, open the throttle slightly and try to start the engine again. If the engine still fails to start, see page 60. Emu27670 warming up engine e...
Page 39: Operation
Operation 34 firmly from neutral to forward. Remote control models 1. Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to forward. Emu27785 reverse (automatic reverse lock and power trim and tilt models) warning ewm00190 when opera...
Page 40: Operation
Operation 35 ping the engine immediately after operating at high speed is not recommended. Emu27844 procedure 1. Push and hold the engine stop button or turn the main switch to “ ” (off). 2. After stopping the engine, disconnect the fuel line if there is a fuel joint on the outboard motor. 3. Tighte...
Page 41: Operation
Operation 36 emu27882 adjusting trim angle power trim and tilt models warning ewm00751 ● be sure all people are clear of the out- board motor when adjusting the tilt an- gle, also be careful not to pinch any body parts between the drive unit and clamp bracket. ● use caution when trying a trim positi...
Page 42: Operation
Operation 37 “ ” (down). Make test runs with the trim set to different angles to find the position that works best for your boat and operating conditions. Emu27911 adjusting boat trim when the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency. This is gener...
Page 43: Operation
Operation 38 salt corrosion. Warning ewm00220 be sure all people are clear of the out- board motor when tilting up and down, also be careful not to pinch any body parts between the drive unit and engine bracket. Warning ewm00250 leaking fuel is a fire hazard. If there is a fuel joint on the outboard...
Page 44: Operation
Operation 39 4. Push the tilt support knob into the clamp bracket or pull the tilt support lever to- ward you to support the engine. Warning ewm00260 after tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever. Otherwise the outboard motor could fall back...
Page 45: Operation
Operation 40 emu28060 cruising in shallow water the outboard motor can be tilted up partially to allow operation in shallow water. Emu28090 power trim and tilt models / power tilt models the outboard motor can be tilted up partially to allow operation in shallow water. Warning ewm00660 ● place the g...
Page 46: Operation
Operation 41 2. Slightly tilt the outboard motor up to the desired position using the power trim and tilt switch / power tilt switch. 3. To return the outboard motor to the nor- mal running position, press the power trim and tilt switch / power tilt switch and slowly tilt the outboard motor down. Em...
Page 47: Maintenance
42 maintenance emu31480 specifications note: “(al)” stated in the specification data below represents the numerical value for the alumi- num propeller installed. Likewise, “(sus)” represents the value for stainless steel propeller installed and “(pl)” for plastic propeller installed. Emu28218 dimens...
Page 48: Maintenance
Maintenance 43 gear oil quantity: 430.0 cm 3 (14.54 us oz) (15.17 imp.Oz) tightening torque for engine: spark plug: 25.0 nm (18.4 ft-lb) (2.55 kgf-m) propeller nut: 35.0 nm (25.8 ft-lb) (3.57 kgf-m) emu28222 transporting and storing outboard motor warning ewm00690 ● leaking fuel is a fire hazard. Wh...
Page 49: Maintenance
Maintenance 44 water may enter the cylinder through the exhaust port and cause engine trou- ble. ● store the outboard motor in a dry, well- ventilated place, not in direct sunlight. Emu28302 procedure emu28372 flushing in a test tank 1. Wash the outboard motor body using fresh water. For further inf...
Page 50: Maintenance
Maintenance 45 9. Remove the outboard motor from the test tank. 10. Drain the cooling water completely out of the motor. Clean the body thoroughly. 11. Install the silencer cover/cap and top cowling. Emu28410 lubrication (oil injection models) 1. Grease the spark plug threads and in- stall the spark...
Page 51: Maintenance
Maintenance 46 fill each cell to the upper level with dis- tilled water. 3. Store the battery on a level surface in a cool, dry, well-ventilated place out of di- rect sunlight. 4. Once a month, check the specific gravity of the electrolyte and recharge as re- quired to prolong battery life. Emu28450...
Page 52: Maintenance
Maintenance 47 emu28522 maintenance chart frequency of maintenance operations may be adjusted according to the operating condi- tions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. Note: when operating in salt ...
Page 53: Maintenance
Maintenance 48 water pump inspection / replace- ment oil pump inspection / adjustment oil tank water drain inspection / cleaning spark plug(s) cleaning / adjustment / replacement item actions initial every 10 hours (1 month) 50 hours (3 months) 100 hours (6 months) 200 hours (1 year).
Page 54: Maintenance
Maintenance 49 emu28931 greasing yamaha marine grease (water resistant grease) 50 emu28952 cleaning and adjusting spark plug warning ewm00560 when removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosi...
Page 55: Maintenance
Maintenance 50 yamaha dealer. You should periodically re- move and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should re- place the spark plug wit...
Page 56: Maintenance
Maintenance 51 checkpoints ● fuel system parts leakage ● fuel line joint leakage ● fuel line cracks or other damage ● fuel connector leakage emu28980 inspecting fuel filter warning ewm00310 gasoline is highly flammable, and its va- pors are flammable and explosive. ● if you have any question about p...
Page 57: Maintenance
Maintenance 52 4. Reinstall the filter element in the cup. Make sure the o-ring is in position in the cup. Firmly screw the cup onto the filter housing. 5. Attach the filter assembly to the bracket so that the fuel hoses are attached to the filter assembly. 6. Run the engine and check the filter and...
Page 58: Maintenance
Maintenance 53 curely. Emu29120 exhaust leakage start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head, and body cylinder. Emu29130 water leakage start the engine and check that no water leaks from the joints between the exhaust cover, cylinder head...
Page 59: Maintenance
Maintenance 54 the battery cut-off switch if your boat has one. ● do not use your hand to hold the pro- peller when loosening or tightening the propeller nut. Put a wood block be- tween the anti-cavitation plate and the propeller to prevent the propeller from turning. Checkpoints ● check each of the...
Page 60: Maintenance
Maintenance 55 3. Remove the propeller and thrust wash- er. Emu30670 installing the propeller emu29231 spline models caution: ecm00340 ● be sure to install the thrust washer be- fore installing the propeller, otherwise the lower case and propeller boss could be damaged. ● be sure to use a new cotter...
Page 61: Maintenance
Maintenance 56 equipped, remove all metal particles from the screw before installing it. ● always use new gaskets. Do not reuse the removed gaskets. 4. Remove the oil level plug and gasket to allow the oil to drain completely. Caution: ecm00710 inspect the used oil after it has been drained. If the ...
Page 62: Maintenance
Maintenance 57 4. Clean the filter (located on the end of the suction pipe) in a suitable cleaning sol- vent. Allow the filter to dry. 5. Replace the gasket with a new one. Re- install the fuel joint assembly and tighten the screws firmly. Emu29312 inspecting and replacing anode(s) yamaha outboard m...
Page 63: Maintenance
Maintenance 58 fluid as it can cause severe burns or permanent eye injury. ● wear protective eye gear when han- dling or working near batteries. Antidote (external): ● skin - flush with water. ● eyes - flush with water for 15 minutes and get immediate medical attention. Antidote (internal): ● drink ...
Page 64: Maintenance
Maintenance 59 when installing the battery and discon- nect the black battery cable first when removing it. Otherwise, the electrical parts can be damaged. ● the electrical contacts of the battery and cables must be clean and properly connected, or the battery will not start the engine. Connect the ...
Page 65: Trouble Recovery
60 trouble recovery emu29424 troubleshooting a problem in the fuel, compression, or igni- tion systems can cause poor starting, loss of power, or other problems. This section de- scribes basic checks and possible remedies, and covers all yamaha outboard motors. Therefore some items may not apply to ...
Page 66: Trouble Recovery
Trouble recovery 61 q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have servic...
Page 67: Trouble Recovery
Trouble recovery 62 a. Have serviced by a yamaha dealer. Q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane. Q. Is water pump or thermostat faulty? A. Have serviced by a yamaha dealer. Q. Is there excess water in fuel filter cup? A. Drain filter cup. Engine ...
Page 68: Trouble Recovery
Trouble recovery 63 q. Is fuel joint connection incorrect? A. Connect correctly. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with rec- ommended type. Q. Is high pressure fuel pump drive belt bro- ken? A. Have serviced by a yamaha dealer. Q. Is engine not responding...
Page 69: Trouble Recovery
Trouble recovery 64 note: consult your yamaha dealer if the new fuse immediately blows again. Emu29522 power trim and tilt / power tilt will not operate if the engine cannot be tilted up or down with the power trim and tilt / the power tilt because of a discharged battery or a failure with the power...
Page 70: Trouble Recovery
Trouble recovery 65 other objects away when starting the engine. Use the emergency starter rope only as instructed. Do not touch the fly- wheel or other moving parts when the engine is running. Do not install the starter mechanism or top cowling after the engine is running. ● do not touch the igniti...
Page 71: Trouble Recovery
Trouble recovery 66 note: when the engine does not start with this pro- cedure, see page 66. Emu29670 engine fails to operate emu29704 cold engine fails to start if the engine fails to start when it is cold, use the following procedure. Warning ewm00410 when starting or operating the engine, do not ...
Page 72: Trouble Recovery
Trouble recovery 67 6. Turn the main switch to “ ” (start). Caution: ecm00191 ● never turn the main switch to “ ” (start) while the engine is running. ● do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery wil...
Page 73: Trouble Recovery
Trouble recovery 68 3. Drain the fuel from the carburetor, fuel filter, and fuel line. 4. Feed fogging oil or engine oil through the carburetor(s) and spark plug holes while cranking with the manual starter or emergency starter rope. 5. Take the outboard motor to a yamaha dealer as soon as possible....
Page 74: Consumer Information
69 consumer information emu29811 important warranty information for u.S.A. And canada.
Page 75: Consumer Information
Consumer information 70
Page 76: Consumer Information
Consumer information 71 emu29820 yamaha motor corporation, u.S.A. Outboard motor two year limited warranty.
Page 77: Consumer Information
Consumer information 72.
Page 78: Consumer Information
Consumer information 73.
Page 79: Consumer Information
Consumer information 74 emu29841 important warranty information if you use your yamaha outside the usa or canada.
Page 80
63b-9-1f hyoshi 06.2.16 9:21 ページ 3.
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63b-9-1f hyoshi 06.2.16 9:21 ページ 3.
Page 82
Printed in japan april 2006–0.8 × 1 ! Printed on recycled paper 63b-9-1f hyoshi 06.2.16 9:21 ページ 4.
Page 83
Yamaha motor co., ltd. Made in japan pays d'origine japon outboard motor warranty registration enregistrement de la garantie du moteur hors-bord please complete and mail this card. This information is necessary to accurately register your unit for warranty. Veuillez signer ci-dessous pour attester q...
Page 84: Attn: Warranty Department
Place postage here attn: warranty department warranty card-04 2/17/03 2:41 pm page 2.