Yamaha MZ175 Owner'S Manual Download Page 45 | Manualshive

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2

1

Fuel tank filter (For models equipped with a

Yamaha fuel tank)

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 insert it.

4. Install the fuel tank cap.

WARNING

Be sure the fuel tank cap is tightened securely.

779-041

1

2

Fuse replacement

(For electric starting model)

WARNING

Be sure to use specified fuse. A wrong fuse will
cause electrical system damage and A FIRE
HAZARD.

NOTICE

Be sure the engine switch is turned to “

5

” (STOP)

to prevent accidental short circuiting.

1. Remove the screws and then remove the cover.

1

Screw

2

Cover

7VB-F8199-11_E0.indd 40

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Summary of Contents for MZ175

Page 1: ... 19626 02 05 7VB F8199 11 PRINTED IN CHINA 2013 11 1 E MZ175 MZ200 MZ250 MZ300 MZ360 OWNER S MANUAL Read this manual carefully before operating this machine 7VB F8199 11_hyoshi indd 1 2 2013 11 27 15 04 17 ...

Page 2: ...Read this manual carefully before operating this machine This manual should stay with this machine if it is sold 7VB F8199 11_hyoshi indd 3 4 2013 11 27 15 04 17 ...

Page 3: ...ny questions regarding the operation or maintenance of your machine please consult a Yamaha dealer MZ175 MZ200 MZ250 MZ300 MZ360 OWNER S MANUAL 2013 by Yamaha Motor Corporation U S A 1st Edition November 2013 All rights reserved Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation U S A is expressly prohibited Printed in China P N LIT 19626 02 05 ...

Page 4: ... TIP A TIP provides key information to make procedures easier or clearer WARNING PLEASE READ AND UNDERSTAND THIS MANUAL COMPLETELY BEFORE OPERATING THE MACHINE TIP 9 Yamaha continually seeks advance ments in product design and quality Therefore while this manual contains the most current product information available at the time of printing there may be minor discrepancies between your machine and...

Page 5: ...els equipped with electric starter 21 PRE OPERATION CHECK 22 Pre operation check 22 OPERATION 23 Starting the engine 24 Stopping the engine 27 High altitude operation 29 PERIODIC MAINTENANCE 30 Maintenance chart 30 Spark plug inspection 32 Carburetor adjustment 33 Engine oil replacement 33 Air filter 35 Spark arrester 36 Fuel cock 39 Fuel tank filter For models equipped with a Yamaha fuel tank 40 ...

Page 6: ...ison you cannot see or smell 9 NEVER use inside a home or garage EVEN IF doors and windows are open 9 Only use OUTSIDE and far away from windows doors and vents 9 Do not place any obstacles on the multi purpose engine Fuel is highly flammable and poisonous 9 Always turn off the engine when refuelling 9 Never refuel while smoking or in the vicinity of an open flame 9 Take care not to spill any fuel...

Page 7: ...ay leak from the carburetor or fuel tank 9 When refueling do not place the fuel tank cap near the muffler 9 Take care not to spill fuel 9 Do not leave the multi purpose engine inside the vehicle or in the trunk 9 If you swallow any fuel inhale fuel vapor or allow any to get in your eye s see your doctor immedi ately If any fuel spills on your skin or clothing immediately wash with soap and water a...

Page 8: ...ering it 9 When covering the multi purpose engine be sure to do so only after the engine and muffler have completely cooled down 9 In order to prevent overheating be sure the equip ment in which the multi purpose engine is mount ed allows adequate ventilation and keep the equipment at least 1m 3 ft from objects or other equipment 9 Avoid placing any flammable materials near the exhaust outlet duri...

Page 9: ... 4 ...

Page 10: ...place safety and instruction labels as necessary without fuel tank model MZ175 1 2 4 2 3 1 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 with fuel tank model ...

Page 11: ... 6 4 3 7CN F4162 50 ...

Page 12: ... 7 1 2 4 3 1 with fuel tank model without fuel tank model MZ200 ...

Page 13: ...k 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 3 7CN F4162 50 ...

Page 14: ... 9 1 2 4 3 MZ250 MZ300 7VB 1 with fuel tank model without fuel tank model ...

Page 15: ...50 4 2 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 ...

Page 16: ...CS MZ360 1 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 with fuel tank model ...

Page 17: ... 12 4 3 7CN F4162 50 ...

Page 18: ... 13 0 7 4 2 8 1 5 6 9 3 0 7 4 2 8 1 3 5 6 9 DESCRIPTION MZ175 MZ200 MZ360 MZ250 MZ300 7VB ...

Page 19: ...a Yamaha 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 tank filter On models equipped with a Yamaha fuel tank r y t w q e MZ300 7CS ...

Page 20: ...Electric starting model If the engine stalls or does not start turn the engine switch to 6 START If the oil warning light comes on the engine oil is insufficient Add oil and restart CONTROL FUNCTION Engine switch The engine switch controls the ignition system 1 ON 7 ON Ignition circuit is switched on The engine can be started 2 OFF 5 STOP Ignition circuit is switched off The engine will not run 3 ...

Page 21: ... to this position when the engine is not running Recoil starter handle Used to start the engine 1 Recoil starter handle NOTICE 9 Pull the recoil starter handle straight 9 Return the recoil starter handle slowly 9 Do not touch the recoil starter handle while the multi purpose engine is operating TIP Pull the recoil starter handle after turning the engine switch to ON Fuel tank cap For models equipp...

Page 22: ...ke lever A B C Functions and specification differs depending on the models Throttle lever Throttle lever controls the engine speed 1 Lever position to idle the engine Decrease engine speed 2 Increase engine speed A B Functions and specification differs depending on the models 1 A 1 701 025c B 701 033b 1 C 1 2 A 1 2 B ...

Page 23: ...tened securely NOTICE Immediately wipe off spilled fuel with a clean dry soft cloth since fuel may deteriorate painted sur faces or plastic parts 1 Red line 1 Stop the engine 2 Place the engine on a level surface 3 Remove the fuel tank cap 4 Check the fuel level 5 If low fill the tank with fuel Do not fill past the red line as fuel may mix with the activated charcoal in the fuel tank cap and overf...

Page 24: ...al 1 21 Imp gal MZ300 5 5 L 1 45 US gal 1 21 Imp gal MZ360 6 1 L 1 61 US gal 1 34 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 NOTICE Use only unleaded gasoline The use of leaded gasoline will cause severe damage to internal engine parts ...

Page 25: ...t 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 specified amount of the recommended engine oil 1 4 Check the oil level of the oil filler hole 2 Correct level 5 Install the oil filler cap ...

Page 26: ...qt 0 53 Imp qt MZ250 1 0 L 1 06 US qt 0 88 Imp qt MZ300 7VB 1 0 L 1 06 US qt 0 88 Imp qt MZ300 7CS 1 1 L 1 16 US qt 0 97 Imp qt MZ360 1 1 L 1 16 US qt 0 97 Imp qt 764 004 1 2 Connecting the battery For models equipped with electric starter Recommended battery capacity is 12 V 26 Ah or more Use battery lead wires with cross section of at least 8 mm 0 31 in square 1 Connect the battery positive term...

Page 27: ... unused TIP Pre operation checks should be made each time the multi purpose engine is used Pre operation check Fuel See page 18 for Yamaha fuel tank instructions 9 Check fuel level in fuel tank 9 Refuel if necessary Fuel line 9 Check fuel hose for cracks or damage 9 Replace if necessary Engine oil See page 20 9 Check oil level in engine 9 If necessary add recommended oil to correct level 9 Check m...

Page 28: ...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 the sufficient engine oil ...

Page 29: ...1 ON 2 Pull the choke lever fully out A Turn the choke lever to 1 B C 2 Choke lever A B C Functions and specification differs depending on the models TIP The choke is not required to start a warm engine When starting the warm engine put the choke lever to the original position A B C ...

Page 30: ...l B Electric starting model 4 763 127h 4 3 3 3 Move the throttle lever slightly to right 3 Throttle lever A B Functions and specification differs depending on the models 5 Manual starting model Pull the recoil starter slowly until it is engaged then pull it briskly A B A B ...

Page 31: ...ding on the models 763 120a 5 6 Electric starting model Turn the engine switch to 6 START Take your hand off the switch immediately after the engine starts 5 6 START NOTICE If the engine fails to start release the switch wait a few seconds then try again Each attempt should be as short as possible to preserve the battery Do not crank the engine more than 5 sec onds on any one attempt 6 A 6 701 025...

Page 32: ...fers depending on the models 2 Turn the engine switch to OFF 5 STOP 2 OFF 5 STOP A Manual starting model B Electric starting model 8 Set the throttle lever in desired position 7 Decrease engine speed 8 Increase engine speed A B Functions and specification differs depending on the models 8 7 A 7 8 B A 2 A 763 120b 2 B 1 B ...

Page 33: ... 28 3 3 3 Turn the fuel cock lever to OFF 3 OFF ...

Page 34: ...meters If you operate your engine at altitudes above 4000 ft 1219 meters consistently have your local Yamaha dealer perform the necessary carburetor modification This engine should be operated in its original config uration below 4000 ft 1219 meters as damage may occur if high altitude carburetor kit is installed and operated below 4000 ft 1219 meters ...

Page 35: ...nance work NOTICE Use only Yamaha specified genuine parts for replacement Ask an authorized Yamaha dealer for further information 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 Spark plug Check condition 1 Clean and replace if necessary Fuel Check fuel level and leakage 1 Fuel hose Check fuel hose for cracks or damage 1 ...

Page 36: ...ly if necessary Valve clearance Check and adjust when engine is cold Idle speed Check and adjust idle speed Recoil starter Check recoil starter for damage Fittings fasteners Check all fittings and fasteners Correct if necessary The point where abnormality was recognized by use 1 1 The air filter element needs to be cleaned more frequently when using in unusually wet or dusty areas Since these item...

Page 37: ...type and gap a Spark plug gap Standard spark plug BPR4ES NGK Spark plug gap 0 7 0 8 mm 0 028 0 031 in TIP The spark plug gap should be measured with a wire thickness gauge and if necessary adjusted to specifi cation 4 Install the spark plug and then tighten it Spark plug tightening torque 20 Nm 2 0 m kgf 14 ft lbf TIP If a torque wrench is not available when installing a spark plug a good estimate...

Page 38: ...ngine on a level surface and warm up the engine for several minutes Then stop the engine and turn the fuel cock lever to OFF 2 Remove the oil filler cap 1 Oil filler cap 3 Place an oil pan under the engine Remove the oil drain bolt and gasket so that the oil can be com pletely drained 2 Oil drain bolt 3 Gasket 4 Check the oil drain bolt oil filler cap and O ring Replace them if damaged 4 O ring 5 ...

Page 39: ...d engine oil AYAMALUBE 4 10W 40 SAE 10W 30 or 10W 40 BSAE 30 CSAE 20 DSAE 10W Recommended engine oil grade API Service SE type or higher Engine oil quantity MZ175 0 6 L 0 63 US qt 0 53 Imp qt MZ200 0 6 L 0 63 US qt 0 53 Imp qt MZ250 1 0 L 1 06 US qt 0 88 Imp qt MZ300 7VB 1 0 L 1 06 US qt 0 88 Imp qt MZ300 7CS 1 1 L 1 16 US qt 0 97 Imp qt MZ360 1 1 L 1 16 US qt 0 97 Imp qt 7 Install the oil filler ...

Page 40: ... wet but not dripping Recommended oil Foam air filter oil or engine oil See page 34 NOTICE Do not wring out the foam element when squeez ing it This could cause it to tear 5 Insert the foam element into the air filter case TIP Be sure the foam element sealing surface matches the air filter case so there is no air leak NOTICE The engine should never run without the foam ele ment excessive piston an...

Page 41: ...When cleaning use the wire brush lightly to avoid damaging or scratching of the spark arrester 5 Check the spark arrester Replace it if damaged Spark arrester WARNING The engine and muffler will be very hot after the engine has been run Avoid touching the engine and muffler while they are still hot with any part of your body or clothing during inspection or repair For MZ250 MZ300 7VB 1 Remove the ...

Page 42: ...ole 7 Install the screw and then tighten the screw 3 Remove the spark arrester 4 Spark arrester 4 For MZ175 MZ200 MZ360 1 Loosen the muffler cap bolt and then remove the muffler cap and muffler screen 1 Muffler cap bolt 2 Muffler cap 3 Muffler screen 1 2 3 2 Use a flathead screw driver to pry the spark arrester out from the muffler ...

Page 43: ...5 6 2 3 2 7 8 6 Install the spark arrester TIP Align the spark arrester lump with the hole in the muf fler pipe 5 Spark arrester lump 6 Hole TIP Install the muffler cap until it contacts with the projec tion on the muffler 7 Projection 8 Install the muffler band then tighten the muffler cap bolt 8 Muffler band Muffler cap bolt tightening torque 3 5 Nm 0 35 m kgf 2 5 ft lbf 7 Install the muffler sc...

Page 44: ...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 gasoline and wipe it off 5 Check the gasket Replace it if damaged 6 Install the fuel strainer gasket and fuel cock cup WARNING Be sure the fuel cock cup is tightened securely 4 1 1 3 2 ...

Page 45: ...soline Replace it if damaged 3 Wipe the fuel tank filter and insert it 4 Install the fuel tank cap WARNING Be sure the fuel tank cap is tightened securely 779 041 1 2 Fuse replacement For electric starting model WARNING Be sure to use specified fuse A wrong fuse will cause electrical system damage and A FIRE HAZARD NOTICE Be sure the engine switch is turned to 5 STOP to prevent accidental short ci...

Page 46: ...1 779 042 3 2 Replace the blown fuse with one of proper amper age Specified fuse 10 A TIP If the fuse immediately blows again consult a Yamaha dealer 3 Fuse 3 Install the cover and then tighten the screws ...

Page 47: ... from the fuel tank into an approved gasoline container using a commercially available hand siphon Then install the fuel tank filter and fuel tank cap WARNING Fuel is highly flammable and poisonous Check SAFETY INFORMATION See page 1 carefully NOTICE Immediately wipe off spilled fuel with a clean dry soft cloth since fuel may deteriorate painted sur faces or plastic parts 3 Turn the engine switch ...

Page 48: ...tainer by loosening the drain screw on the car buretor float chamber Pour the drained fuel into the same approved gasoline container as the fuel from the fuel tank 4 Drain Screw 7 Turn the engine switch to OFF 5 STOP 8 Turn the fuel cock lever to OFF 9 Tighten the drain screw 10 Tighten further if any screws bolts and nuts are loose 11 Store the multi purpose engine in a dry well ven tilated place...

Page 49: ...ng over several times with igni tion off to coat the cylinder walls with oil 2 Pull the recoil starter until you feel compression Then stop pulling This prevents the cylinder and valves from rusting 3 Clean exterior of the multi purpose engine and apply a rust inhibitor 4 Store the multi purpose engine in a dry well ven tilated place with the cover placed over it 5 The multi purpose engine must re...

Page 50: ...2 Oil level is low Add engine oil 3 Electrical systems 2 Manual starting model Engine switch to ON and pull the recoil starter 2 ON 2 763 120a 2 2 Electric starting model Engine switch to 6 START 2 6 START 2 Fuel in tank Fuel cock lever to ON 1 ON 2 Clogged fuel line Clean fuel line 2 Foreign matter in fuel cock Clean fuel cock 2 Clogged carburetor Clean carburetor ...

Page 51: ... 46 Poor spark 2 Spark plug dirty with carbon or wet Remove carbon or wipe spark plug dry 2 Faulty ignition system Consult a Yamaha deal er ...

Page 52: ...heck the following 9 Fuel line clogging 9 Air filter element clogging O Clogged P OK Q Clean or replace R OK S Engine does not start H Pull the recoil starter and check the spark plug for spark strength See WARNING WARNING 9 To prevent FIRE HAZARDS be sure fuel is not present in the spark plug area 9 To prevent FIRE HAZARDS be sure to place the spark plug as far away as possible from the spark plu...

Page 53: ... 48 ...

Page 54: ...e spark plug for spark strength See WARNING WARNING 9 To prevent FIRE HAZARDS be sure fuel is not present in the spark plug area 9 To prevent FIRE HAZARDS be sure to place the spark plug as far away as possible from the spark plug hole and carburetor area 9 To prevent ELECTRIC SHOCK do not hold spark plug lead with hand while testing M OK N Does not spark X Consult a Yamaha dealer Electric startin...

Page 55: ...evel low Consult a Yamaha dealer Add engine oil O Check the spark plug 9 Type BPR4ES 9 Gap 0 7 0 8 mm 0 028 0 031 in P Incorrect Q OK Replace or adjust gap Clean the spark plug E Faulty battery and or starter motor Consult a Yamaha dealer ...

Page 56: ...50 MZ300 MZ300 7KB 7VB 7VB Without fuel tank model With fuel tank model Without fuel tank model Overall length mm in 404 15 91 387 15 24 404 15 91 Overall width mm in 416 16 38 426 16 77 416 16 38 Overall height mm in 294 5 11 59 464 18 27 294 5 11 59 Dry weight kg lb 20 27 44 60 20 27 44 60 20 27 44 60 Unit MZ300 MZ360 MZ360 7CS 7CT 7CT Without fuel tank model With fuel tank model Without fuel ta...

Page 57: ...ype BPR4ES NGK BPR4ES NGK BPR4ES NGK Gap mm in 0 7 0 8 0 028 0 031 0 7 0 8 0 028 0 031 0 7 0 8 0 028 0 031 Unit MZ200 MZ200 MZ250 7DH 7DH 7KB With fuel tank model Without fuel tank model With fuel tank model Type Air cooled 4 stroke gasoline OHV Air cooled 4 stroke gasoline OHV Air cooled 4 stroke gasoline OHV Cylinder arrangement Inclined 1 cylinder Inclined 1 cylinder Inclined 1 cylinder Displac...

Page 58: ...BPR4ES NGK BPR4ES NGK BPR4ES NGK Gap mm in 0 7 0 8 0 028 0 031 0 7 0 8 0 028 0 031 0 7 0 8 0 028 0 031 Unit MZ300 MZ360 MZ360 7CS 7CT 7CT Without fuel tank model With fuel tank model Without fuel tank model Type Air cooled 4 stroke gasoline OHV Air cooled 4 stroke gasoline OHV Air cooled 4 stroke gasoline OHV Cylinder arrangement Inclined 1 cylinder Inclined 1 cylinder Inclined 1 cylinder Displace...

Page 59: ...clined 1 cylinder Inclined 1 cylinder Displacement cm3 357 357 Bore stroke mm in 85 0 63 0 3 35 2 48 85 0 63 0 3 35 2 48 Fuel Unleaded gasoline Unleaded gasoline Fuel tank capacity L US gal Imp gal Engine oil quantity L US qt Imp qt 1 1 1 16 0 97 1 1 1 16 0 97 Ignition system TCI TCI Spark plug Type BPR4ES NGK BPR4ES NGK Gap mm in 0 7 0 8 0 028 0 031 0 7 0 8 0 028 0 031 ...

Page 60: ...eparate place in case your machine is stolen PRI I D NUMBER PRI I D CODE SERIAL No MODEL CONSUMER INFORMATION Machine identification The machine serial number is stamped in the location as shown TIP The first three digits of these numbers are for model identification the remaining dig its are the unit production number Keep a record of these numbers for reference when ordering parts from a Yamaha ...

Page 61: ...T WIRE2 ARRESTER SPARK The above items and the corresponding acronyms are provided in accordance with U S EPA REGULATIONS FOR NEW NONROAD SPARK IGNITION NONHANDHELD ENGINES and the CALIFORNIA REGULATIONS FOR 1995 AND LATER SMALL OFF ROAD ENGINES The acronyms conform to the latest version of the SAE s recommended practice docu ment J1930 Diagnostic Acronyms Terms and Definitions For Electrical Elec...

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