Related Manuals for Yamaha 30DMH
Summary of Contents for Yamaha 30DMH
- Page 1 OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6J8-28199-2G-E0...
- Page 2 EMU25052 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.
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Page 3: Important Manual Information
Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer. -
Page 4: Table Of Contents
Table of contents Safety information......1 Fuel tank ......... 12 Fuel joint.......... 13 Outboard motor safety ....1 Fuel gauge ........13 Propeller..........1 Fuel tank cap........13 Rotating parts........1 Air vent screw........13 Hot parts ........... 1 Tiller handle........13 Electric shock ........ - Page 5 Table of contents Engine shut-off cord (lanyard)..25 Replacement parts ......43 Oil............ 26 Severe operating conditions.... 43 Engine ..........26 Maintenance chart 1......44 Install cowling........26 Maintenance chart 2......46 Filling fuel and engine oil....26 Greasing.......... 47 Filling fuel for portable tank .....
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Page 6: Safety Information
Safety information EMU33622 engine stops if the operator falls overboard Outboard motor safety or leaves the helm. This prevents the boat Observe these precautions at all times. from running away under power and leaving EMU36500 people stranded, or running over people or Propeller objects. -
Page 7: Modifications
Have an approved personal flotation device tions. Overloading or incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or whenever boating. -
Page 8: Weather
Safety information Operate defensively at safe speeds and keep a safe distance away from people, ob- jects, and other boats. Do not follow directly behind other boats or ● waterskiers. Avoid sharp turns or other maneuvers that ● make it hard for others to avoid you or un- derstand where you are going. -
Page 9: General Information
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for ZMU04912 reference in case your outboard motor is sto- 1. C-Tick label location len. -
Page 10: Read Manuals And Labels
Read any manuals supplied with the boat. ● Read all labels on the outboard motor and the boat. ● If you need any additional information, contact your Yamaha dealer. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. ZMU06197... - Page 11 General information ZMU05697 EMU33912 Contents of labels EWM01671 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. ● EWM01691 Wear an approved personal flotation ● WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ●...
- Page 12 General information EMU35132 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665...
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Page 13: Specifications And Requirements
Specifications and requirements Bore × stroke: EMU31480 Specifications 59.5 × 59.5 mm (2.34 × 2.34 in) TIP: Ignition system: “(AL)” stated in the specification data below Spark plug with resistor (NGK): represents the numerical value for the alumi- BR7HS-10 num propeller installed. Spark plug gap: Likewise, “(SUS)”... -
Page 14: Installation Requirements
Boat horsepower rating appropriate. EWM01560 Your Yamaha dealer can help you select the WARNING right propeller for your boating needs. Select Overpowering a boat can cause severe a propeller that will allow the engine to reach instability. -
Page 15: Start-In-Gear Protection
EMU25651 engine starting and running problems. Engine oil requirements Yamaha does not recommend gasohol con- taining methanol because it can cause fuel Recommended engine oil: system damage or engine performance YAMALUBE 2-stroke outboard motor problems. -
Page 16: Motor Disposal Requirements
(including metric sizes), and electrical tape. Waterproof flashlight with extra batteries. ● An extra engine shut-off cord (lanyard) ● with clip. Spare parts, such as an extra set of spark ● plugs. Consult your Yamaha dealer for details. -
Page 17: Components
Components EMU2579H Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. 30DMH ZMU04847 1. Top cowling 16. Rope attachment 2. Top cowling lock lever 17. Choke knob 3. -
Page 18: Fuel Joint
Components licensing or approval authority regula- tions. ZMU02846 EMU25922 Gear shift lever ZMU02284 Pulling the gear shift lever towards you puts 1. Fuel joint the engine in forward gear so that the boat 2. Fuel gauge moves ahead. Pushing the lever away from 3. -
Page 19: Throttle Indicator
Components To decrease resistance, turn the adjuster counterclockwise. ZMU02848 EMU25961 ZMU03688 Throttle indicator The fuel consumption curve on the throttle When constant speed is desired, tighten the indicator shows the relative amount of fuel adjuster to maintain the desired throttle set- consumed for each throttle position. -
Page 20: Engine Stop Button
Components ZMU03759 ZMU03761 EMU26070 1. Clip Manual starter handle 2. Cord To start the engine, first gently pull the han- 3. Engine shut-off switch dle out until resistance is felt. From that posi- EMU26001 tion, then pull the handle straight out quickly Engine stop button to crank the engine. -
Page 21: Trim Tab With Anode
Components the starboard side “B” in the figure. ECM00840 NOTICE The trim tab also serves as an anode to protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode. ZMU02908 To increase resistance, turn the adjuster clockwise. -
Page 22: Tilt Lock Mechanism
Components partially to provide more clearance when op- erating in shallow water. ZMU03766 ECM00660 ZMU03763 NOTICE Do not use the tilt support lever or knob EMU30530 Tilt lock mechanism when trailering the boat. The outboard The tilt lock mechanism is used to prevent motor could shake loose from the tilt sup- the outboard motor from lifting out of the wa- port and fall. -
Page 23: Alert Indicator
Components EMU26303 Alert indicator If the engine develops a condition which is cause for alert, the indicator lights up. For details on how to read the alert indicator, see page 20. ZMU04911... -
Page 24: Instruments And Indicators
Instruments and indicators EMU36013 Indicators EMU36032 Overheat-alert indicator If the engine temperature rises too high, this indicator will light up. For further information on reading the indicator, see page 20. ECM00052 NOTICE Do not continue to run the engine if the overheat-alert indicator is on. -
Page 25: Engine Control System
Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU2681A ZMU03026 Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate. -
Page 26: Installation
Installation EMU26902 Installation The information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination. Prop- er mounting depends in part on experience and the specific boat and motor combination. EWM01590 WARNING ZMU01760... -
Page 27: Clamping The Outboard Motor
Other- Test runs at different heights can help de- wise the engine could be completely lost termine the optimum mounting height. if it accidentally falls off the transom. Consult your Yamaha dealer or boat man-... - Page 28 Secure the clamp bracket to the transom using the bolts provided with the out- board (if packed). For details, consult your Yamaha dealer. WARNING! Avoid using bolts, nuts or washers other than those contained in the engine packaging. If used, they must be of at...
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Page 29: Operation
Operation EMU36380 plane, then immediately reduce the First-time operation throttle to 3000 r/min or less. EMU30174 Next two hours: Breaking in engine Accelerate at full throttle onto plane, Your new engine requires a period of break- then reduce engine speed to three-quar- in to allow mating surfaces of moving parts to ter throttle (approximately 4000 r/min). -
Page 30: Fuel Level
If any water is found in the fuel, or if a gine top cowling, release the lock lever and significant amount of debris is found, the fuel lift off the cowling. tank should be checked and cleaned by a Yamaha dealer. ZMU06092 ZMU06198 EMU36440 Fuel system... -
Page 31: Oil
2. Cord cowling by pushing it with both hands. If the 3. Engine shut-off switch top cowling is loose, have it repaired by your Yamaha dealer. EMU27120 Check to be sure you have plenty of oil for ● your trip. -
Page 32: Gasoline And Oil Mixing (100:1)
Operation on your skin, wash with soap and wa- EMU27406 Gasoline and oil mixing (100:1) ter. If gasoline spills on your clothing, ECM00811 change your clothes. NOTICE Stop the engine. Avoid using any oil other than the spec- ● Remove the portable tank from the boat. ified type. -
Page 33: Operating Engine
Operation the oil gradually as the gasoline is being add- ed to the tank. EMU27451 Operating engine EMU27464 Feeding fuel (portable tank) EWM00420 WARNING Before starting the engine, make sure ● that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you. -
Page 34: Starting Engine
Operation connect the fuel line to the joint. Then EMU27492 Starting engine firmly connect the other end of the fuel EWM01600 line to the joint on the fuel tank. WARNING Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. - Page 35 Operation TIP: The start-in-gear protection device prevents the engine from starting except when in neu- tral. Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg. Then install the clip on the other end of the cord into the engine shut-off switch.
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Page 36: Checks After Starting Engine
Operation blocked. Consult your Yamaha dealer if the problem cannot be located and cor- rected. ZMU02030 TIP: When the engine is cold, it needs to be ● ZMU02856 warmed up. For further information, see page 31. Check that no water leaks from the joints be- If the engine does not start on the first try, ●... -
Page 37: Shifting
Operation shut-off switch. EMU34550 Shifting EWM00180 WARNING Before shifting, make sure there are no swimmers or obstacles in the water near you. ECM01610 ZMU05678 NOTICE Warm up the engine before shifting into To shift from in gear (forward/reverse) to gear. Until the engine is warm, the idle neutral speed may be higher than normal. -
Page 38: Stopping Boat
Operation EMU31742 Stopping boat EWM01510 WARNING Do not use the reverse function to slow ● down or stop the boat as it could cause you to lose control, be ejected, or im- pact the steering wheel or other parts of the boat. -
Page 39: Trimming Outboard Motor
Operation clip from the engine shut-off switch. EMU27862 Trimming outboard motor EWM00740 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steering the boat more difficult. This in- creases the possibility of an accident. -
Page 40: Adjusting Boat Trim
Operation bow up, the boat may have a greater tenden- cy to steer to one side or the other. Compen- sate for this as you steer. The trim tab can also be adjusted to help offset this effect. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane. -
Page 41: Tilting Up And Down
Operation ating with excessive trim-in at higher speeds few minutes. Otherwise fuel may leak. also makes the boat unstable. Resistance at ECM00241 the bow is greatly increased, heightening the NOTICE danger of “bow steering” and making opera- Before tilting the outboard motor, stop ●... -
Page 42: Procedure For Tilting Down (Manual Tilt Models)
Operation support the engine. NOTICE: Do not use the tilt support lever or knob when trailering the boat. The out- board motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal run- ning position, use an additional sup- port device to secure it in the tilt position. -
Page 43: Cruising In Other Conditions
Also rinse the outside of the outboard motor with fresh wa- ter and, if possible, rinse the power head un- der the cowling. Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use... - Page 44 Operation the optional chromium-plated water pump kit (see page 10) if you use the outboard motor in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water. After operating in such water, flush the cool- ing passages with fresh water to prevent cor- rosion.
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Page 45: Maintenance
Consult your Yamaha ECM01411 NOTICE dealer for further details. -
Page 46: Procedure
Maintenance 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. EMU28303 Procedure EMU28334 Flushing in a test tank ZMU02051 ECM00300 NOTICE 1. -
Page 47: Lubrication
Yamaha dealer. Seal replacement should be performed EMU37072 Periodic maintenance by an authorized Yamaha dealer prior to use. EWM01981 WARNING Grease all grease fittings. For further de- tails, see page 47. -
Page 48: Replacement Parts
EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and passengers. -
Page 49: Maintenance Chart 1
The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Initial Every 20 hours Item... - Page 50 Inspection or replace- Thermostat ment as necessary Water inlet Inspection Main switch/stop Inspection or replace- switch/choke switch ment as necessary Wire harness connec- Inspection or replace- tions/Wire coupler con- ment as necessary nections Inspection and clean- (Yamaha) Fuel tank ing as necessary...
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Page 51: Maintenance Chart 2
Maintenance EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Guide exhaust/exhaust Inspection or replace- manifold ment as necessary... -
Page 52: Greasing
Maintenance EMU28941 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) 30DMH ZMU03793 EMU28955 ple, if the center electrode porcelain is very Cleaning and adjusting spark plug white, this could indicate an intake air leak or The spark plug is an important engine com- carburetion problem in that cylinder. -
Page 53: Checking Fuel Filter
For cleaning or replacement of the Be sure to use the specified spark plug, fuel filter, consult your Yamaha dealer. otherwise the engine may not operate properly. Before fitting the spark plug, measure the electrode gap with a wire thickness gauge;... -
Page 54: Checking Wiring And Connectors
Turn off the battery cut-off switch if quires adjustment, consult a Yamaha dealer your boat has one. or other qualified mechanic. Do not use your hand to hold the propeller... -
Page 55: Removing Propeller
Otherwise the propeller could come off during opera- ZMU03227 tion and be lost. Check the propeller shaft oil seal for dam- ● Apply Yamaha marine grease or a cor- age. rosion resistant grease to the propeller EMU30661 shaft. Removing propeller... -
Page 56: Changing Gear Oil
Consult a or knob is locked. Severe injury could Yamaha dealer for repair of the lower occur if the outboard motor accidental- unit seals. [ECM00711] ly falls. -
Page 57: Cleaning Fuel Tank
EMU29312 If you have any question about properly ● Inspecting and replacing anode(s) doing this procedure, consult your Yamaha outboard motors are protected from Yamaha dealer. corrosion by sacrificial anodes. Inspect the Keep away from sparks, cigarettes, ● external anodes periodically. Remove scales flames, or other sources of ignition from the surfaces of the anodes. - Page 58 Maintenance them ineffective. TIP: Inspect ground leads attached to external anodes on equipped models. Consult a Yamaha dealer for inspection and replace- ment of internal anodes attached to the pow- er unit. ZMU02924...
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Page 59: Trouble Recovery
Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble-alert indicator is flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer. - Page 60 Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? A.
- Page 61 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
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Page 62: Temporary Action In Emergency
A. Tighten bolt. er), the engine can be started with an emer- gency starter rope. Q. Is steering pivot loose or damaged? EWM01022 A. Tighten or have serviced by a Yamaha WARNING dealer. Use this procedure only in an emergen- ●... -
Page 63: Emergency Starting Engine
Trouble Recovery could result in an accident. Attach the engine shut-off cord to a se- ● cure place on your clothing, or your arm or leg while operating the boat. Do not attach the cord to clothing that ● could tear loose. Do not route the cord where it could become entangled, pre- venting it from functioning. -
Page 64: Treatment Of Submerged Motor
EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected. - Page 66 YAMAHA MOTOR CO., LTD. Printed in Japan April 2008–0.2 × 1 ! Printed on recycled paper...