MTD E172 Troubleshooting Guide, Accessories & Kits, Problem, Cause, Remedy, Model, Description

SECTION 8: TROUBLESHOOTING GUIDE

Problem		Cause		Remedy
Engine fails to start	1.	Key not in ignition switch or not in ON position.	1.	Insert key and turn to ON position
	2.	Fuel tank empty, or stale fuel	2.	Fill tank with clean fresh gasoline/oil
				mixture as specified in the engine manual.
	3.	Blocked fuel line	3.	Clean fuel line
	4.	Spark plug wire disconnected	4.	Connect wire to spark plug.
	5.	Faulty spark plug	5.	Clean spark plug, readjust gap, or replace.
Engine runs erratic	1.	Unit running on choke	1.	Move choke lever to off position.
	2.	Fuel line blocked, or stale fuel	2.	Clean fuel line and fill tank with fresh, clean
				gasoline.
	3.	Water or dirt in fuel system	3.	Refer to engine manual on remedy.
	4.	Carburetor out of adjustment	4.	Refer to engine manual.
Loss of power	1.	Spark plug wire loose	1.	Connect and tighten spark plug wire.
	2.	Vent in fuel cap plugged	2.	Clear vent.
	3.	Engine exhaust pipe plugged.	3.	Remove obstruction from exhaust pipe.
Excessive vibration	1.	Loose parts or damaged auger	1.	Stop engine immediately and disconnect
				spark plug wire. Check for possible
				damage. Tighten all bolts and nuts. Repair
				as needed. If the problem persists, take unit
				to an authorized MTD service dealer.
Unit fails to self-propel	1.	Drive cable out of adjustment	1.	Adjust the control cable as instructed on
				page 9 of this manual.
	2.	Drive belt damaged	2.	Inspect the drive belt for damage and
				replace if necessary as instructed on page
				10 of this manual.
Unit fails to discharge	1.	Discharge chute clogged	1.	Stop engine immediately and disconnect
snow				spark plug wire. Clean discharge chute and
				the auger housing.
	2.	Foreign object lodged in auger	2.	Stop engine immediately and disconnect
				spark plug wire. Remove object.
	3.	Drive cable out of adjustment	3. Adjust the control cable as instructed
	4.	Drive belt or damaged		on page 9 of this manual.
			4.	Inspect the drive belt for damage and
				replace if necessary as instructed on page
				10 of this manual.

SECTION 9: ACCESSORIES & KITS

The following accessories and kits are available for single-stage,two-stroke snow throwers. See the retailer from which you purchased your snow thrower, an authorized MTD Service Dealer or phone (800) 800-7310 for information regarding price and availability.

MODEL	DESCRIPTION
OEM-390-694	Electric Start Kit
	(fits models with a two-cycle Tecumseh 3 HP or 3.5 HP engine)
OEM-390-996	Electric Start Kit
	(fits models with a two-cycle Tecumseh 4.5 HP – 5 HP engine)
OEM-737-0325	MTD two-cycle snow thrower oil (contains six 2.6 oz. bottles)
753-0451	Shave Plate (includes replacement shave plate and hardware)
753-0613	Auger Rubber Paddle Kit (includes replacement rubber paddles and hardware)

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