It is highly recommended that this is done by a Shindaiwa-trained service technician. ¦ Replace the spark plug annually: Use only the type recommended in the ”Specifications” section or an equivalent resistor type spark plug of the correct heat range. Set spark plug electrode gap to 0.6 mm. IMPORTANT! The valve clearance should be adjusted. It is highly recommended that this is done by a Shindaiwa-trained service technician. Valve Adjustment 1. Remove cylinder cover, rocker arm cover, and spark

Always wear clothing and safety equipment that will provide appropriate protection against the materials you are handling. Equipment may include, but not be limited to: ¦Long sleeve shirt ¦Impermeable apron or coverall ¦Impermeable gloves and boots ¦Wide-brim hat ¦Protective mask equipped with appropriate filters Do not eat, drink, or smoke while handling chemicals or while you are spraying. Always handle chemicals in a well ventilated area while wearing appropriate protective clothing and safet

Use of non-approved mixing oils can lead to excessive carbon deposits. Examples of 50:1 mixing quantities n 1 gallon of gasoline to 2.6 oz. mixing oil. n 5 liters of gasoline to 100 ml. mixing oil. Oil is a registered JASO FC classified oil and also meets or exceeds ISO-L- EGD performance requirements. Shindaiwa One is recommended for use in all Shindaiwa low emissions engines. Shindaiwa One also includes a fuel stabilizer. Filling the Fuel Tank WARNING! Minimize the Risk of Fire! n ALWAYS stop

To minimize the risk of injury, read this manual and familiarize yourself with its contents. X7502825800 Introduction The Shindaiwa H4 series has been designed and built to deliver superior performance and reliability without compromise to quality, comfort, safety or durability. Shindaiwa engines represent the leading edge of high-performance engine technology, delivering exceptionally high power with remarkably low displacement and weight. As an owner/operator, you’ll soon discover for yourself

NOTE: Using non-standard replacement parts could invalidate your Shindaiwa warranty. ..........U This unit must never be operated with a faulty or missing spark arrester or muffler. Make sure the muffler is well secured and in good condition. A worn or damaged muffler is a fire hazard and may also cause hearing loss. Spark Plug Keep the spark plug and wire connections tight and clean. Daily Maintenance Prior to each work day, perform the following: Y Remove all dirt and debris from the engine, c

If you have questions regarding your 2510 series hand held power equipment, or if you do not understand something in this manual, your Shindaiwa dealer will be glad to assist you. You may also contact Shindaiwa, Inc. at the address printed on the back of this Manual. NOTE: A statement preceded by the word ”NOTE” contains information that is handy to know and may make your job easier. Contents PAGE Attention Statements....................................2 Safety Instructions......................

Fluid in the crankcase. Internal damage. Consult with an authorized servicing dealer. Consult with an authorized servicing dealer. Consult with an authorized servicing dealer. NOGood compression?Loose spark plug. Excess wear on cylinder, piston, rings. Tighten and re-test. NOYESDoes the tank contain fresh fuel of the proper grade? Refill with fresh, clean unleaded gasoline witha pump octane of 87 or higher mixed witha 2-cycle air cooled mixing oil that meets orexceeds ISO-L-EGD and/or JASO FC cl

Primer Bulb Figure 10 CAUTION! Do not pull the recoil starter to the end of the rope travel. Pulling the recoil starter to the end of the rope travel can damage the starter. 2. Press the primer bulb until fuel can be seen flowing in the transparent return tube. IMPORTANT! The primer system only pushes fuel through the carburetor. Repeatedly pressing the primer bulb will not flood the engine with fuel. WARNING! The cutting attachment may rotate when the engine is started! 3. Set the choke lever t

Figure 24 50-Hour Maintenance Lubricate the Flexible Shaft. Lack of lubrication will cause rapid wear to the flexible shaft and also to the shaft tube liner, resulting in increased vibration and greatly decreased service life. Remove and lubricate the flexible shaft as follows: Refer to Figure 27: 1. Loosen the gearcase clamp screw. 2. Remove the gearcase index screw. 3. Slide the gearcase and shield assembly from the shaft tube. 4. Pull the flexible shaft from the shaft tube assembly, and clean

Remove both screws from the handle. 2. While spreading the handle at the mounting hole, position the handle on the outer tube as shown. 3. Reinstall the two mounting screws in the handle, but do not tighten them at this time. NOTE: The handle is recessed to receive the hex nuts. 4. Locate the handle at the best position for operator comfort (usually about 10 inches ahead of the throttle assembly). 5. Secure the handle by tightening the mounting screw and the adjustment knob screw. Hex Nut Hex Nu