Yard Machines 387, 389, 370, 378 Each Time Before YOU Start Your Mower, Neutral Adjustment Test

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EACH TIME BEFORE YOU START YOUR MOWER

•Attach spark plug wire to spark plug. Make certain the metal cap on the end of the spark plug wire is fastened securely over the metal tip on the spark plug.

•Check for proper drive clutch operation using the NEUTRAL ADJUSTMENT TEST.

NEUTRAL ADJUSTMENT TEST

To perform the NEUTRAL ADJUSTMENT TEST answer the following questions.

•With the drive clutch control released, push mower forward and pull it backward. Does it move freely?

•Squeeze the drive clutch control and pull the mower backward. Do the rear wheels lock (not turn)?

•Is the drive clutch control cable free of kinks or sharp bends?

If you answered “yes” to all three questions, your mower passed the test and you can start your mower. If you answered “no” to any of the three questions, you need to go through the DRIVE CLUTCH CONTROL ADJUSTMENT found in the ADJUSTMENTS section.

TO START ENGINE AND ENGAGE BLADE

•Move the throttle control lever all the way forward.

•Prime engine as instructed in the separate engine manual.

•Stand behind the unit, squeeze and hold the blade control handle against the upper handle.

•Grasp starter handle and pull rope out slowly until engine reaches start of compression cycle (rope will pull slightly harder at this point). Let the rope rewind slowly.

•Pull rope with a rapid, continuous, full arm stroke. Keep a firm grip on starter handle. Return it slowly to the rope guide.

•After engine starts, move throttle control to desired engine speed. (The mower is designed to be operated at full throttle.)

NOTE: If any problems are encountered, refer to the TROUBLE SHOOTING Section of this manual.

TO STOP ENGINE AND BLADE

• Release the blade control handle to stop the engine and blade.

WARNING: The blade continues to rotate for a few seconds after the engine is shut off.

USING YOUR ROTARY MOWER

Be sure that lawn is clear of stones, sticks, wire, or other objects which could damage the lawn mower or engine. Such objects could be accidently thrown by the mower in any direction and cause serious personal injury to the operator and others.

For the best results, do not cut wet grass because it tends to stick to the underside of the mower, preventing proper discharge of grass clippings, and could cause you to slip and fall. New grass, thick grass or wet grass may require a narrower cut.

For a healthier lawn, never cut off more than one-third of the total length of the grass. Your lawn should be cut in the fall as long as there is growth.

This mower is designed to be operated at full throttle to give you the best cut and do the most effective job of mowing or mulching.

WARNING: If you strike a foreign object, stop the engine. Remove wire from spark plug, thoroughly inspect the mower for any damage, and repair the damage before restarting and operating the mower. Extensive vibration of the mower during operation is an indication of damage. The unit should be promptly inspected and repaired.

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Contents Important Read Safety Rules and Instructions Carefully MTD Products INC. P.O. BOX 368022 CLEVELAND, OhioImportant Safe Operation Practices General OperationService Slope OperationDo not ChildrenSafety Labels Found On Lawn Mower Gaugeslope Finding Your Model Number Calling Customer SupportDisconnect Spark Plug Wire Unpacking InstructionsRemove Unit from Carton Items Required for Assembly SET-UP InstructionsSET-UP Your Lawn Mower Tighten wing nuts Controls Blade Control HandleThrottle Control Recoil StarterCutting Height Adjustment Lever OperationEngine Controls GAS and OIL FILL-UPNeutral Adjustment Test Using Your Rotary MowerEach Time Before YOU Start Your Mower To Start Engine and Engage BladeBagging Grass Clippings Emptying a Full BAG of GrassMulching Grass Clippings Adjustments Handle Height AdjustmentSide Discharging Grass Clippings Optional Throttle Control Adjustment Drive Clutch Control AdjustmentMaintenance LubricationEngine Cutting Blade REMOVAL, Replacement and Sharpening Trouble ShootingDeck Shift Lever Cable Adjustment Models 380 389 Only Drive Belt Removal and Replacement Model 370 Series Small Baffle Blade Adapter Large Baffle Hex Head Screw Drive Belt Removal and Replacement Model 380 Series Six-Speed Direction but not the other. If the wheel Trouble Shooting Guide OFF-SEASON StorageFront Axle Assembly & Height Adjuster Models 370 thru†† Wheel Assembly Chart Description Model 380 thru 811-00185 710-1237 710-0871 Description Shroud Chart MANUFACTURER’S Limited Warranty for

378, 370, 389, 387 specifications

Yard Machines is a well-known brand in the outdoor power equipment market, primarily recognized for producing reliable and efficient lawn care devices. Among their product line, the Yard Machines 389, 387, 378, and 370 models represent the company's commitment to combining advanced technologies with practical features.

Starting with the Yard Machines 389, this model is engineered for durability and performance. It typically comes with a powerful engine that offers ample cutting power, making it ideal for tackling medium to large-sized lawns. The 389 features an adjustable cutting height that allows users to customize their mowing experience according to grass type and desired lawn aesthetics. Additionally, its large grass bag capacity reduces the frequency of emptying, making the mowing task more efficient.

The Yard Machines 387 offers similar performance with slightly varied specifications. It is designed for ease of use, boasting a lightweight frame and ergonomic handles, making it manageable for users of all ages. The 387’s engine is optimized for fuel efficiency, which not only saves money but also reduces the environmental impact. With its sturdy construction, the model is built to withstand the rigors of regular use, ensuring longevity.

Moving to the Yard Machines 378, this model is particularly noted for its enhanced maneuverability, making it suitable for variable terrains, including uneven yards and tight corners. It features a self-propelled option, allowing users to confidently navigate different landscapes without excessive effort. The 378 often includes a mulching capability, permitting grass clippings to be finely shredded and recycled back into the lawn for added nutrients.

Finally, the Yard Machines 370 is the entry-level model in this series, yet it doesn't compromise on performance. It is perfect for homeowners with small to medium lawns. Easy to handle, it often incorporates a straightforward recoil start system, making it user-friendly for those who may be new to lawn maintenance. The compact design further enhances its storage capabilities, appealing to those with limited garage or shed space.

In conclusion, the Yard Machines 389, 387, 378, and 370 models collectively showcase the brand’s dedication to quality and innovation in lawn care. With features designed for various user needs—from powerful engines to user-friendly designs—these mowers cater to a diverse range of customers looking to maintain their outdoor spaces efficiently.
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