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DuroMax Customer Service
info@duromaxpower.com
or call 844-DUROMAX Monday - Friday 7am to 5:00pm. PST
Product Support
support@duromaxpower.com
or call 844-DUROMAX Monday - Friday 7am to 5:00pm. PST
This manual provides information regarding the operation and maintenance of these products.
We have made every effort to ensure the accuracy of the information in this manual.
We reserve the right to change this product at any time without prior notice.
Please keep this manual available to all users during the entire life of the engine.
Gasoline Engine
Owner's Manual
(Product: information, application, service info & warranty questions)
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Summary of Contents for DUROMAX XP7HPE
- Page 1 Gasoline Engine Owner’s Manual DuroMax Customer Service info@duromaxpower.com or call 844-DUROMAX Monday - Friday 7am to 5:00pm. PST Product Support (Product: information, application, service info & warranty questions) support@duromaxpower.com or call 844-DUROMAX Monday - Friday 7am to 5:00pm. PST This manual provides information regarding the operation and maintenance of these products.
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Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ............................2 PARTS DESCRIPTIONS .............................. 3 BATTERY CONNECTION (electric-start type)......................4 PRE-OPERATION INSPECTION..........................4 ENGINE OIL................................4 FUEL AND FUEL TANK............................6 STARTING THE ENGINE ............................7 RUNNING THE ENGINE.............................. 8 LOW OIL SENSOR..............................8 OPERATING AT HIGH ALTITUDE........................9 SHUTTING DOWN................................. -
Page 3: Safety Precautions
SAFETY PRECAUTIONS WARNING: Before operating the engine, be sure to read and familiar with the manual carefully, otherwise personal injury or equipment damage may produce. Please pay special attention to the following: 1. Running the engine in a well-ventilated place, keep it at least one meter away from building walls or other equipments, keep away from inflammables such as gasoline, matches and so on to avoid possibility of fire. -
Page 4: Parts Descriptions
PARTS DESCRIPTION The main parts of engine are located as follows... -
Page 5: Battery Connection (Electric-Start Type)
BATTERY CONNECTION (electric-start type) In the case that the specifications of the battery are 12V and more than 18A.h connect its positive lead to the electromagnetic coil while connect its negative lead to engine mount strew, base screw or any place capable of grounding with the engine well. Make sure the battery leads are connected tightly and no corrosion is found. - Page 6 selected in accordance with our recommendation. Check 1. Ensure that the engine is stopped on a level ground. 2. Remove the dipstick and clean it. 3. Reinsert the dipstick into the oil filler without screwing it, and check oil level. 4.
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Page 7: Fuel And Fuel Tank
Dismantle the air cleaner housing and check its filter element, make sure it is clean and intact, otherwise clean or replace. IV. Oil-bath type 1. Dismantle the air cleaner housing and check its core, make sure it is clean and intact, otherwise clean or replace. -
Page 8: Starting The Engine
Check 1. Remove the fuel filler cap and check fuel level. 2. If the fuel level is too low, refuel the tank. Remember adding fuel not over the fuel filler shoulder. WARNING: ● Gasoline is extremely flammable and is explosive under certain conditions. -
Page 9: Running The Engine
up until feeling anti-action, and then make a rapid pull. CAUTION: Releasing the handle suddenly may make it hitting the engine. Release the handle slowly conforming to its recoiling force. b) Electric starter Push the engine switch to “START”and remain there until the engine starts. -
Page 10: Operating At High Altitude
crankcase is too low, the engine oil alarm will stall the engine automatically to make it free of damage while the engine switch is still at “ON”. CAUTION: If cannot restart the engine, check the engine oil level first before go to other check items. BREAKER (Electric-start type) The breaker will cut off automatically to protect the charging circuit of the battery in the case that short circuit or incorrect connection of the battery poles occurs. -
Page 11: Maintenance
smoke while carbon monoxide is toxic, so exhaust control of them is very important. The company decreases the exhaust emissions by introducing poor-fuel carburetors and other devices into the engine to solve the problem. To keep the exhaust of your engine with in the standard exhaust emission, pay attention to the following: 1. -
Page 12: Changing The Engine Oil
√ Air cleaner Check √① √②* Clean √** Replace √ Deposit cup Clean √ Spark plug Clean, adjust √ Replace √ Spark eliminator Clean √② Idling Check-adjust √② Valve clearance Check-adjust Fuel tank & fuel √② Clean filter Fuel supply line Check Every two years (do a replacement if necessary) CAUTION:... -
Page 13: Cleaning The Air Cleaner
1. Turn off the oil filler cap and drain plug to drain engine oil thoroughly. Reinstall the drain plug and screw in securely. 2. Fill the specified engine oil up to the upper level mark. 3. Reinstall the oil filler cap. Engine oil capacity in the reduction gear box is 0.3 0.5 liters, engine oil capacity in the crankcase is 0.6(1.1) liters. -
Page 14: Cleaning The Deposit Cup
clean engine oil until saturated. Squeeze out excess oil, otherwise, the engine will discharge smoke in starting stage. b) Paper filter element: knock the core against a solid plane to got rid of accumulated dust or blow out dust from inside to outside with high-pressure air flow (not more than 30psi). Never clean with a brush, as brushing may force the dust into the core fiber. -
Page 15: Carburetor Idle Adjustment
Proper spark plug clearance ensures the engine’s normal running under no deposit around the spark plug. Warning Be careful not to touch the muffler during or just after running the engine. 1. Remove the spark plug cap. 2. Clear away dirt around the spark plug base. 3. -
Page 16: Transport, Storage And Removal From Storage
TRANSPORT, STORAGE AND REMOVAL FROM STORAGE TRANSPORT Transport with the fuel cock turned off. Transport or store the engine when it is cool so as to avoid getting burns or fire. CAUTION: Do not incline the engine so as to avoid fuel’s spill. Spilled fuel or fuel vapor may ignite to cause fire. -
Page 17: Removal From Storage
REMOVAL FROM STORAGE Before reusing, service the engine in accordance with the instruction of the table STORAGE TIME SERVICE ITEM Within one month Drain out original fuel of the fuel tank and One ~ tow months refuel Drain out original fuel of the fuel tank and Two month ~ one refuel;... -
Page 18: Specifications
SPECIFCAIONS MAIN SPECIFICATIONS Model XP7HP XP7HPE XP16HP XP16HPE Items Engine type 4-strok, OHV,25°,single-cylinder, force air-cooled bore×stroke(㎜) 70×54 90×66 90×66 Rated 4.2/3600 8.5/3600 8.5/3600 power(kW/rpm) Max. 13.2/2500 28.5/2500 28.5/2500 torque(N·m/rpm) Displacement(ml) Starting type Electric Electric Electric recoil recoil recoil start start... - Page 19 supply. Needle valve Dismantle needle valve and repair, clean, closed properly or start blow to get through. hole is clogged. Float damaged Repair float sticking. 1. Normal cylinder Fuel is too filthy or Replace compression. deteriorated 2. Normal spark plug There is water in fuel Replace spark.
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Page 20: Ii. Low Gasoline Engine Power Output
● Make sure there is no spilled fuel outside the engine and that the spark plug isn’t dipped with fuel. ● To prevent fire, keep sparks far away from the spark plug mount hole. 2. By using starting motor ITEM CAUSE REMEDY Check battery connection... -
Page 21: Stops Suddenly When Running
Roller bearing for crankshaft main Replace roller bearing shaft is worn Engine is too hot Shoot trouble much carbon deposit Clear away Abnormal combustion combustion chamber Improper gasoline brand Replace with qualified gasoline quality gasoline There is water in float chamber Clean Improper spark... -
Page 22: There Is Abnormal Noise When Engine Running
Dirt or something like this fill up Clear away dirt or something like among air cooling fins this Cooling fan is loosen, losing Reinstall well function The rod deformation makes Replace tie rod piston and cylinder bushing side wear Cylinder or piston or piston ring Replace the worn is worn, resulting in air flow between cylinder and crankcase... -
Page 23: Wiring Diagram
WIRING DIAGRAM... - Page 24 Note: The diagram for other types may be different with the exception of electric-start type.
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Page 25: Exploded View And Parts List(7Hp)
EXPLODED VIEW AND PARTS LIST (7HP) - Page 26 Part Description Part Description DJ170F-11100-C Crank case assy. GBT5789-86 Flange bolt M6×12 GB276-89-6205 Radial ball bearing (6025) DJ168F-11300-B Cover assembly DJ168F-15100-A Speed Regulating Gear DJ168F-11011-A cover assembly DJ168F-15100-A centrifugal assy. DJ168F-13204-A Lock Nut DJ168F-13100-B Camshaft assy. DJ168F-13203-A Adjusting Nut DJ168F-12100-QT Crankshaft Assembly DJ168F-13201-A Arm, valve rocker...
- Page 27 DJ168F-15005-A Lock Bolt DJ170F-12302-A Piston Ring B Side Ring GBT6177-N-6 Flange nut M6 DJ170F-12304-A DJ170F-12303-A Wave Ring DJ170F-15007-B Back Spring B DJ170F-12304-A Side Ring DJ168F-15006-A Pulling Rod DJ170F-12300-A Scraper Ring Set, Piston DJ170F-15008-A Fine Regulating Spring C DJ168F-12003-A Clip, piston pin DJ1P65F-14008-A Tube clip DJ170F-12002-A...
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Page 28: Exploded View And Parts List(16Hp)
EXPLODED VIEW AND PARTS LIST (16HP) - Page 29 Part Description Part Description GBT5787-B6-8 Bolt Flange M6×8 DJ188F-13006-A Rotator, valve DJ190N-16122-A recoil starter DJ188F-13300-A Plate, push rod guide GBT5787-B6-12 Bolt Flange M6×12 DJ188F-13202-A Bolt, pivot DJ190N-16121-A Starter comp, recoil DJ188F-13201-A Arm, valve rocker GBT6177-N-14 Flange nut M14 DJ168F-13203-A Nut, Arm, valve rocker DJ188F-16001-A Pulley, starter DJ168F-13204-A...
- Page 30 DJ190N-14300-A fule filler DJ188F-13005-A Retainer, EX. Valve spring DJ1P65F-11038-A Tube Cock DJ188F-13004-A Retainer, IN. Valve spring DJ190N-1400-A Outlet pipeφ6×φ10×320 DJ170N-18400-A Choke Switch GBT5787-B8-20 Flange bolt M8×20 GBT5787-B8-35 Flange bolt M8×35 GBT93-LW-8 spring washer GBT-W-8 flat washer DJ188F-13002-A EX. Valve DJ190N-14001-B Bolt head, 8×120 DJ188F-11017-A Clip, wire...
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