
Do you have a question about the MTD 70 Series and is the answer not in the manual?
Emphasizes reading operator's manual and using safety precautions for equipment.
Lists recommended maintenance intervals for various items like oil, filters, and plugs.
Discusses spark plug types, gapping, cleaning recommendations, and inspection indicators.
Specifies recommended oil, capacity, and considerations for synthetic vs. petroleum oil.
Details three methods for changing engine oil: siphon, drain plug, and tipping.
Provides a chart of torque values for various fastener sizes and grades.
Outlines a suggested approach to troubleshooting MTD engines, emphasizing safety.
Lists common engine problems like crankshaft not turning or no start, categorized by symptoms.
Identifies potential causes for engine issues like crankshaft not turning, no start, and poor running.
Describes how to perform a compression test and interpret the readings.
Describes MTD air filters and how to access them for maintenance.
Explains how to remove and replace the carburetor insulator, including safety precautions.
Discusses MTD's GREENBAR fuel line, its construction, and replacement requirements.
Explains the location and replacement of fuel filters, including in-line types.
Discusses troubleshooting carburetors via elimination and provides steps for inspection.
Details steps for disassembling the carburetor, including float bowl and float removal.
Explains how engine speed is controlled by the governor mechanism.
Specifies recommended oil, capacity, and considerations for synthetic vs. petroleum oil.
Explains MTD's splash lube system, oil passages, and the importance of oil level.
Explains PCV valve location and service procedures, including cover and gasket separation.
Provides steps for removing the recoil starter assembly from the engine, including shroud removal.
Details the process of replacing a broken recoil starter rope, including winding and tensioning.
Explains the function of the electric starter relay and how to remove/replace it.
Covers troubleshooting steps for the ignition system, including spark tester use.
Details how to test the stop switch using an ohmmeter or jumper wire.
Describes types of ignition modules and their operation.
Describes flywheel types and the procedure for removing the flywheel.
Provides steps for removing and replacing conventional mufflers.
Explains the function and identification of catalytic converter mufflers and the air injector.
Outlines the initial steps for removing the cylinder head, including engine preparation.
Explains valve servicing options and the process for removing rocker arms and valves.
Details procedures for inspecting crankshaft journals, crankpin, and checking for run out.
Describes how to measure piston ring end gap and install rings onto the piston.
Outlines cleaning, oil seal installation, and crankshaft insertion for engine reassembly.
Lists torque specifications for various engine fasteners across different models.
Explains how abrasive particles enter the engine and cause wear.
Explains the functions of engine oil and common causes of lubrication failure.
Describes how engine overheating causes warped parts, head gasket leaks, and potential damage.
Discusses causes of part breakage like abuse, wear, and manufacturing defects, including bent crankshafts.
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