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- Portable Generator
- MZ300
- Owner's Manual
Yamaha MZ300 Owner's Manual
Summary of MZ300
Page 1
Multi-purpose engine lit-19626-01-80 7vb-f8199-10 printed in china 2012.08 × 1 ! (e) mz300 owner’s manual read this manual carefully before operating this machine. 7vb-f-10_hyoshi.Indd 1-2 2012/08/10 14:05:45.
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Read this manual carefully before operating this machine. This manual should stay with this machine if it is sold. 7vb-f-10_hyoshi.Indd 3-4 2012/08/10 14:05:45.
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Introduction congratulations on your purchase of your new yamaha. This manual will provide you with a good basic understanding of the operation and maintenance of this machine. If you have any questions regarding the operation or maintenance of your machine, please consult a yamaha dealer. Mz300 own...
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Particularly important information is distin- guished in this manual by the following notations. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety mes- sages that follow this symbol to avoid possible injury or death. Warning a warning indi...
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Safety information ....................... 1 exhaust fumes are poisonous ............ 1 fuel is highly flammable and poisonous ............................................ 1 engine and muffler may be hot ........... 2 electric shock prevention .................... 3 location of important labels .......
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– 1 – safety information 9 do not allow children to operate the multi-purpose engine. Exhaust fumes are poisonous 9 never operate the engine in a closed area or it may cause unconsciousness and death within a short time. Operate the engine in a well ventilated area. 9 do not place any obstacles on t...
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– 2 – a 9 keep the machine at least 1 m (3 ft) from build- ings or other equipment, or the engine may over- heat. A 1 m (3 ft) engine and muffler may be hot 9 place the machine in a place where pedestrians or children are not likely to touch the machine. 9 avoid placing any flammable materials near ...
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– 3 – electric shock prevention 9 never operate the engine in rain or snow. 9 never touch the machine with wet hands or elec- trical shock will occur. 9 do not operate the engine with a dust cover or other objects covering it. 9 when covering the multi-purpose engine, be sure to do so only after the...
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– 4 – location of important labels please read the following labels carefully before oper- ating this machine. Tip maintain or replace safety and instruction labels, as necessary. 1 mz300a 7cn-f4162-40 1 2 3 4 2 mz300a 7vb-f-10_e0.Indd 4 2012/08/10 14:04:57.
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– 5 – 4 3 this spark ignition system meets all re- ce système d'allumage respecte toutes les exigences sur le matériel brouilleur du canada. 7cc-h2377-50 quirements of the canadian interference causing equipment regulations. 2 mz300k 7vb-f-10_e0.Indd 5 2012/08/10 14:04:57.
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– 6 – 0 7 4 2 8 1 3 5 6 9 description 1 fuel tank cap 2 fuel tank 3 throttle lever 4 recoil starter handle 5 fuel cock lever 6 fuel cock cup 7 air filter case cover 8 choke lever 9 spark plug 0 muffler q oil warning light (red) w engine switch e oil filler cap r oil drain bolt t carburetor y fuel ta...
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– 7 – 1 2 oil warning light (red) when the oil level falls below the lower level, the oil warning light comes on and then the engine stops automatically. Unless you refill with oil, the engine will not start again. Tip if the engine stalls or does not start, turn the engine switch to “on” and then p...
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– 8 – 1 2 2 1 1 fuel cock lever the fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has two positions. 1 on with the lever in this position, fuel flows to the carbu- retor. Normal using is done with the lever in this posi- tion. 2 off with the lever in this position, fuel...
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– 9 – 1 2 throttle lever throttle lever controls the engine speed. 1 “ ” lever position to idle the engine. Decrease engine speed. 2 “ ” increase engine speed. 7vb-f-10_e0.Indd 9 2012/08/10 14:04:59.
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– 10 – 1 preparation fuel warning 9 fuel is highly flammable and poisonous. Check “safety information” (see page 1) carefully before filling. 9 do not fill the fuel above the red line, other- wise it may overflow when the fuel warms up and expands. 9 after fill the fuel, make sure the fuel tank cap ...
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– 11 – recommended fuel: unleaded gasoline fuel tank capacity: total: 5.5 l (1.45 us gal, 1.21 imp gal) your yamaha engine has been designed to use regu- lar unleaded gasoline with a pump octane number ((r + m)/2) of 86 or higher, or research octane number of 91 or higher. 7vb-f-10_e0.Indd 11 2012/0...
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– 12 – 700-006 700-103 2 engine oil notice the multi-purpose engine has been shipped with- out engine oil. Do not start the engine until you have filled it with the sufficient engine oil. 1. Place the multi-purpose engine on a level surface. 2. Remove the oil filler cap. 1 oil filler cap 3. Fill the...
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– 13 – pre-operation check warning if any item in the pre-operation check is not work- ing properly, have it inspected and repaired before operating the multi-purpose engine. The condition of a multi-purpose engine is the owner’s responsibility. Vital components can start to deteriorate quickly and ...
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– 14 – operation warning never operate the engine in a closed area or it may cause unconsciousness and death within a short time. Operate the engine in a well ventilated area. Notice the multi-purpose engine has been shipped with- out engine oil. Do not start the engine until you have filled it with...
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– 15 – 6 5 4 4. Turn the engine switch to “on”. 3 “on” 6. After the engine starts, warm up the engine enough so that the engine does not stop when the choke lever is returned to the original position. 4 original position 7. Set the throttle lever in desired position. 5 “ ” : decrease engine speed 6 ...
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– 16 – 1 2 2 stopping the engine 1. Move the throttle lever fully to “ ” . 2. Turn the engine switch to “off”. 1 “off” 3. Turn the fuel cock lever to off. 2 off 7vb-f-10_e0.Indd 16 2012/08/10 14:05:01.
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– 17 – periodic maintenance safety is an obligation of the owner. Periodic inspection, adjustment and lubrication will keep your multi-purpose engine in the safest and most efficient condition possible. The most important points of multi-purpose engine inspection, adjustment, and lubrication are exp...
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– 18 – item routine pre- operation check initial every 1 month or 20 hrs 3 months or 50 hrs 6 months or 100 hrs 12 months or 300 hrs crankcase breather hose • check breather hose for cracks or damage. 1 • replace if necessary. Cylinder head • decarbonize cylinder head. • more frequently if necessary...
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– 19 – a spark plug inspection the spark plug is an important engine component, which should be checked periodically. 1. Remove the spark plug cap and the spark plug. 2. Check for discoloration and remove the carbon. The porcelain insulator around the center elec- trode of spark plug should be a med...
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– 20 – carburetor adjustment the carburetor is a vital part of the engine. Adjusting should be left to a yamaha dealer with the professional knowledge, specialized data, and equipment to do so properly. Engine oil replacement warning avoid draining the engine oil immediately after stopping the engin...
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– 21 – 700-006a 5 6. Add engine oil to the correct level. 5 correct level notice be sure no foreign material enters the crankcase. 0˚c a yamalube 4 (10w-40) d sae 10w c sae #20 b sae #30 32˚f 25˚c 80˚f recommended engine oil: a yamalube 4 (10w-40), sae 10w-30 or 10w-40 b sae #30 c sae #20 d sae 10w ...
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– 22 – 2 1 3 air filter 1. Remove the screws, and then remove the air filter case cover. 1 screw 2 air filter case cover 2. Remove the foam element. 3 foam element 3. Wash the foam element in solvent and dry it. Warning never use solvent while smoking or in the vicinity of an open flame. 4. Oil the ...
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– 23 – 2. Use a flathead screw driver to pry the spark arrester out from the muffler. 711-003a 2 3. Remove the spark arrester. 2 spark arrester 4. Remove the carbon deposits on the spark arrester using a wire brush. Notice when cleaning, use the wire brush lightly to avoid damaging or scratching of ...
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– 24 – 3 4 6. Install the spark arrester. Tip align the spark arrester lump with the hole in the muf- fler pipe. 3 spark arrester lump 4 hole 7. Install the screw, and then tighten the screw. 7vb-f-10_e0.Indd 24 2012/08/10 14:05:03.
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– 25 – fuel cock warning never use the gasoline while smoking or in the vicinity of an open flame. 1. Stop the engine. 2. Turn the fuel cock lever to off. 1 off 3. Remove the fuel cock cup, gasket and fuel strain- er. 2 fuel cock cup 3 gasket 4 fuel strainer 4. Clean the cup and fuel strainer with g...
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– 26 – 2 1 fuel tank filter warning never use the gasoline while smoking or in the vicinity of an open flame. 1. Remove the fuel tank cap and fuel tank filter. 1 fuel tank cap 2 fuel tank filter 2. Clean the fuel tank filter with gasoline. Replace it if damaged. 3. Wipe the fuel tank filter and inse...
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– 27 – 2 1 storage long term storage of your machine will require some preventive procedures to guard against deterioration. Drain the fuel 1. Turn the engine switch to “off”. 1 “off” 2. Remove the fuel tank cap and fuel tank filter. Extract the fuel from the fuel tank into an approved gasoline cont...
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– 28 – 4 5. Start the engine and leave it run until it stops. The engine stops in approx. 20 mins. Time by run- ning out of fuel. Tip duration of the running engine depends on the amount of the fuel left in the tank. 6. Drain the fuel from the carburetor by loosening the drain screw on the carbureto...
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– 29 – engine perform the following steps to protect the cylinder, pis- ton ring, etc. From corrosion. 1. Remove the spark plug, pour about one table- spoon of sae 10w-30 or 20w-40 motor oil into the spark plug hole and reinstall the spark plug. Recoil start the engine by turning over several times ...
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– 30 – 1 700-006 troubleshooting engine won’t start 1. Fuel systems no fuel supplied to combustion chamber. 2 no fuel in tank .... Supply fuel. 2. Engine oil system insufficient 2 oil level is low .... Add engine oil. 3. Electrical systems 2 engine switch to “on” and pull the recoil starter. 2 “on” ...
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– 31 – a engine does not start b turn the engine switch to “on”, then pull the recoil starter and check if the oil warning light flickers. C does not flicker d flickers e check engine oil level. F ok g level low consult a yamaha dealer. Add engine oil. K check the spark plug. 9 type: bpr4es 9 gap: 0...
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– 32 – specifications dimensions unit mz300a mz300k overall length mm (in) 387 (15.24) 404 (15.91) overall width mm (in) 426 (16.77) 416 (16.38) overall height mm (in) 464 (18.27) 294.5 (11.59) dry weight kg (lb) 26 (57) 21 (46) engine unit mz300a mz300k type air cooled 4-stroke gasoline ohv air coo...
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– 33 – identification number records record your primary i.D., and serial num- bers in the spaces provided, to assist you in ordering spare parts from a yamaha dealer. Also record and keep these i.D. Numbers in a separate place in case your machine is stolen. Pri-i.D. Number: pri-i.D. Code serial no...
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– 34 – exhaust emission control system and components item acronym 9 carb. Assy., lh. & jt., .......................Carb (carburetor) carburetor2 9 t.C.I. Magneto assy. & .....................Ei (electronic ignition) plug, spark 9 crankcase1 & head, .......................Pcv (positive crankcase cyl...
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– 35 – yamaha motor corporation usa, spark ignited small off-road equipment (sore) limited and epa emissions warranty yamaha motor corporation, usa, hereby warrants that new yamaha spark ignited small off road engines, hereafter called sore engines, purchased from an authorized yamaha sore engine de...
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– 36 – an approved yamaha sore engine repair station may be found by phoning 1-866-788- 7398 (usa citizen) 1-866-788-7397 (canadian citizen) warranty transfer: to transfer the warranty from the original purchaser to any subsequent purchaser(s), please contact 1-866-788-7398 (usa citizen) 1-866-788-7...
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– 37 – yamaha outdoor power equipment california evaporative emission control warranty statement your warranty rights and oblligations the california air resources board and yamaha motor corporation, usa are pleased to explain the evaporative emission control system’s warranty on your 2006 or later ...
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– 38 – yamaha motor corporation, u.S.A. Small off road engines california emission control warranty your warranty rights and obligations the california air resources board and yamaha motor corporation, u.S.A. Are pleased to explain the emission control system warranty on your 2008 and later small of...
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– 39 – 1. Designed, built, and equipped so as to conform, at the time of sale, with all applicable regulations adopted by the california air resources board, and 2. All warranted parts are free from defects in material and workmanship for the warranty period of the sore engine or the period prior to...
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– 40 – (8) throughout the emissions warranty period defined in subsection (b)(2), the manufacturer must maintain a supply of warranted parts sufficient to meet the expected demand for such parts. (9) any replacement part may be used in the performance of any warranty maintenance or repairs and must ...
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– 41 – 7. Particulate controls traps, filters, precipitators, and any other device used to capture particulate emissions 8. Miscellaneous items used in above systems vacuum, temperature, and time sensitive valves and switches electronic controls hoses, belts, connectors, and assemblies 9. Engine com...
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– 42 – exclusions: no warranty coverage will be allowed if the part(s) failure was caused by owner/operator abuse, neglect, tampering, improper adjustment unless performed by a dealer during warranty repair work, modification, misuse, alteration, or improper maintenance (see your owner’s manual). Us...
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7vb-f-10_e0.Indd 43 2012/08/10 14:05:05.
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Read this manual carefully before operating this machine. This manual should stay with this machine if it is sold. 7vb-f-10_hyoshi.Indd 3-4 2012/08/10 14:05:45.
Page 50: Multi-Purpose Engine
Multi-purpose engine lit-19626-01-80 7vb-f8199-10 printed in china 2012.08 × 1 ! (e) mz300 owner’s manual read this manual carefully before operating this machine. 7vb-f-10_hyoshi.Indd 1-2 2012/08/10 14:05:45.