XP35HPE HORIZONTAL SHAFT ENGINE User Manual REV: XP35HPE_rev06212021 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. 5800 Ontario Mills Pkwy Ontario, CA 91764 USA www.DuroMaxPower.
CONTENTS 1. Introduction Introduction ..................................................................................................................... 4 General Safety Procedures ............................................................................................ 6 Package Contents............................................................................................................ 7 2. Engine Setup Adding Oil.............................................................................
INTRODUCTION DuroMax has cemented its reputation as one of the markets leading power equipment companies who are headquartered in the US. All of our products are manufactured to the strictest guidelines and go through countless testing in all phases of production. Evolving our strong engine line, DuroMax has complemented its offerings to include Pressure Washers, Water Pumps, Engines and now offering V-Twin engines.
GENERAL SAFETY PROCEDURES SAFETY ALERT SYMBOL The safety alert symbol is used with one of the safety words (DANGER, CAUTION, or WARNING) to alert you of hazards. Please pay attention to these hazard notices both in this manual and on the Engine. Please familiarize yourself with the following safety symbols and words: ● DANGER: Indicates a hazard that will result in serious injury or death if instructions are not followed.
GENERAL SAFETY PROCEDURES WARNING: This Engine may emit highly flammable and explosive gasoline vapors, which can cause severe burns or even death. A nearby open flame can lead to an explosion even if not directly in contact with gas. ● Do not operate near an open flame. ● Do not smoke near Engine. ● Always operate on a firm, level surface. ● Always turn Engine off before refueling. ● Allow Engine to cool for at least 2 minutes before removing fuel cap. Loosen cap slowly to relieve pressure in tank.
PACKAGE CONTENTS Your Engine comes with the items listed below. Please check to see that all of the following items are included with your Engine. Spark Plug Wrench Oil Funnel Used in spark plug maintenance, inspection, and installation. Used to add oil to the Engine without messy spills. ● Note: Actual tools may differ in appearance or design from image shown.
ENGINE SETUP Proper setup of your Engine will get you going as soon as possible while making sure you and your equipment are safe and cared for.
ENGINE SETUP Adding Oil The Engine requires engine oil to operate properly. The Engine, when new from the package contains no oil in the crankcase*. You must add the proper amount of oil before operating the Engine for the first time. This amount is equal to the oil capacity of the engine crankcase: Model Number XP35HPE Engine Oil Capacity 2.54 qt. (2.4L) WARNING: Do not apply engine oils with additives or 2-stroke gasoline engine oils.
High Altitude Use At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emissions. The fuel system on this engine/equipment may be influenced by operation at higher altitudes.
MAINTENANCE AND CARE Proper maintenance and storage of your Engine is essential to ensure trouble free use of your Engine when you need it. By following the maintenance and care requirements, you can keep your Engine running smooth and efficient for years to come.
MAINTENANCE AND CARE Proper routine maintenance of your Engine is essential for safe, economical, and trouble-free operation. It will also help reduce air pollution. WARNING: Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in which you can be seriously injured or killed. Always follow the inspection and maintenance recommendations and schedules in this instruction manual. ● Make sure the engine is off before you begin any maintenance or repairs.
MAINTENANCE LOG Date Engine Hours Maintenance Performed 15
MAINTENANCE AND CARE (CONTINUED) Checking the oil 1. Check the oil The Engine is equipped with an automatic shutoff to protect it from damage due to low oil. Nonetheless, you should check the oil level of the engine before each use to ensure that the engine crankcase has a sufficient amount. To check the oil level: a. Make sure the Engine is on a level surface. b. Remove dipstick. c. With a dry cloth, wipe the oil off of the stick. d.
Changing the oil Worn out or dirty oil does not cool the Engine properly and can lead to catastrophic engine damage. In addition to regular oil changes, it is necessary to drain the oil from the crankcase if it has become contaminated with water or dirt. 1. Remove drain plug Using a 12 mm hex wrench, unscrew the oil drain plug, which is located on the crankcase underneath the oil filler/dipstick cap. Allow all the oil to drain from the Engine. 2.
MAINTENANCE AND CARE (CONTINUED) Cleaning the air filter Routine maintenance of the air cleaner helps maintain proper airflow to the carburetor. Check that the air cleaner is free of excessive dirt after every use. Note: Improper maintenance may cause less air to enter the engine or dirty air to enter the engine causing overheating and engine wear. 1. Unclip filter cover Unhinge the clasps of the air filter cover. There is one clip on each side of the cover. 2.
4. Replace new filter Insert the filter, paper side down into the air filter compartment on top of the engine. 5. Replace filter cover Slide the filter cover back in place between the frame and the engine. 6. Secure filter cover Fasten the filter cover to the engine with the clips found on each side of the cover.
MAINTENANCE AND CARE (CONTINUED) Spark Plug Maintenance The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits, and properly gapped. The V-Twin engine in this Engine has two spark plugs, one on each side. Both plugs are located just underneath the OHV covers. Improper maintenance may cause reduced fuel economy, misfires, trouble starting, or damage to the spark plug threads. 1. Remove spark plug cap Pull on the spark plug cap to remove it. 2.
4. Measure plug gap Measure the plug gap with a gauge. The gap should be 0.7-0.8 mm (0.028-0.031 in). 5. Clean and re-gap If you are re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base and then re-gap the spark plug. 6. Replace spark plug Screw the spark plug back into its place on the Engine using the spark plug wrench. 7. Replace spark plug cap Replace the spark plug cap.
MAINTENANCE AND CARE (CONTINUED) Storage and Transportation CAUTION: Never place any type of storage cover on the Engine while it is still hot. When transporting your Engine: ● Empty the gas tank ● Disconnect the spark plug. ● Do not obstruct any ventilation openings & keep the Engine in a cool dry area. Storage Period Storage Preparation If you plan on starting the same day. 1. 2. Turn off the engine. Store. If you plan on starting the unit again within 30 days. 1. 2. 3. 4. 5.
SPECIFICATIONS 255 28.5 560 383 515 30º 30º 16 16 Ø166 Ø146-0.
SPECIFICATIONS (CONTINUED) 560 255 383 28.5 155.58±0.1 270 93 500.2 4xØ10.3 16 30º 16 Ø166 232 116 Ø146-0.
2 116 Ø146-0.065 12 90 103 SAE 5/8-18 UNF-2B Shaft Dimensions 38 Ø36.5 +0.025 0 117.5 112 Z1X0310 89 9.5 +0.05 0 31 +0.115 -0.
Specifications Displacement Dimensions Dry Weight Maximum Torque Maximum RPM Compression Ratio Bore X Stroke Fuel Type Engine Oil Capacity Bearing Type PTO Shaft Diameter PTO Shaft Length PTO Shaft Height PTO Shaft Keyway Shaft End Tapped Shaft Rotation 26 999cc 19.7”x20.3”x22” (500x515x560mm) 110.23 lbs (50kg) 58 ft-lbs (78 N.m.)@ 2500RPM 4000 RPM 8.6:1 90mm x 78.5mm 87+ Octane Gasoline 2.6 qt (2.4 L) Stainless Steel Needle Bearing 1.4” (36.5mm) 4.6” (117.5mm) 6.1” (155.6mm) 3/8” x 3.5” (9.
WARRANTY This section of the manual is to help you understand your warranty.
WARRANTY 3-year Warranty All DuroMax Power Equipment warrant the original purchasers to a 3-year Parts Warranty (Residential Use ONLY: Unusually heavy or commercial use is covered for a period of 1-year) in the event of failure due to defects in electrical or mechanical components. Freight on any items submitted for replacement or repair under the Warranty are the responsibility of the equipment owner. This warranty is non-transferable and only valid to the original purchaser.
U.S EPA EMISSION CONTROL WARRANTY STATEMENT The United States Environmental Protection Agency and DuroMax Power Equipment are pleased to explain the emission control system warranty on your 2021-2022 model year small off-road engines. In the United States, new small off-road engine must be designed, built and equipped to meet stringent anti smog standards.
WARRANTY (CONTINUED) DEFECTS WARRANTY REQUIREMENTS: (a) The warranty period begins on the date the engine is delivered to an ultimate purchaser. (b) General Emissions Warranty Coverage.
CUSTOMER SERVICE Duromax Power Equipment is committed to ensuring that our products perform when they need to. Our Engines are your lifeline in the event of an emergency. Should you have any problems, please contact our customer service department: DUROMAX POWER EQUIPMENT 5800 Ontario Mills Parkway Ontario, CA 91764 Customer Service: 844-DUROMAX Customer Service Hours: 8-5pm PST Website: www.DuroMaxPower.com Email: customer_service@DuroMaxPower.
5800 Ontario Mills Parkway Ontario, CA 91764 United States 844-DUROMAX
