MAINTENANCE AND REPAIR INSTRUCTIONS
Adjust Idle Speed Screw
7.
8.
Disconnect the spark plug wire.
Clean dirt from around the spark plug. Remove the spark
plug from the cylinder head by turning a 5/8 in. socket
counterclockwise.
Remove the engine cover (Fig. 34).
Clean dirt from around the
rocker arm cover. Remove
the screw holding the rocker
arm cover with a large flat
blade screwdriver or Torx T-
25 bit (Fig. 35). Remove the
rocker arm cover and gasket.
Pull the starter rope slowly to
bring the piston to the top of
its travel (known as top dead
center). Check that:
WARNING: This unit will need to be running
during idle speed adjustment. Wear protective
clothing and observe all safety instructions to
prevent serious personal injury.
Also, DO NOT set unit on any surface except a clean,
hard area while starting or performing any adjust-
ments. Debris, such as gravel, sand, dust, grass, etc.,
could be thrown by the blower tube and damage
property or cause serious injury to bystanders or
operator.
9.
10.
Rocker
Arm
Cover
Spark
Plug
Hole
If, after checking the fuel and cleaning the air filter, the engine
still will not idle, adjust the idle speed screw as follows:
11.
1.
Start the engine and let it run at a high idle for a minute to
warm up. Refer to Starting/Stopping Instructions.
2.
Move the throttle control to the idle position (
) and let
•
The piston is at the top of
its travel while looking in the
spark plug hole (Fig. 36).
the engine idle. If the engine stops, insert a small phillips
screwdriver in between the Air Filter Cover and the Engine
Cover (Fig. 32). Turn the idle speed screw in, clockwise, 1/8
of a turn at a time (as needed) until the engine idles smoothly.
Fig. 35
Adjusting Nuts
INTAKE
Rocker Arms
Checking the fuel, cleaning the air filter, and adjusting the idle
speed should solve most engine problems. If not and all of the
following are true:
•
•
•
the engine will not idle
the engine hesitates or stalls on acceleration
there is a loss of engine power
EXHAUST
Have the carburetor adjusted by a qualified service dealer.
ROCKER ARM CLEARANCE
1.
Remove the 2 handle screws with flat blade or T20 torx head
screwdriver, while holding the nuts with 3/8” nut driver (Fig. 33).
Feeler Gauge
Remove
Screws
Spark Plug
Hole
Fig. 36
Both rocker arms move freely, and both valves are closed.
If these statements are not true, repeat this step.
•
12.
Slide the feeler gauge between the rocker arm and the
valve return spring. Measure the clearance between the
valve stem and rocker arm (Fig. 36 & 37). Measure both
the intake and exhaust valves.
Fig. 33
2.
3.
Remove top bolt located near starter rope handle with
tools mentioned in step 1 (Fig. 33).
Loosen screw located near top of door hinge with same
tools mentioned in step 1.
Adjusting Nut
4.
5.
6.
Open vacuum door, prop open with hand.
Remove handle.
Remove the six (6) screws on the back of the engine cover
with a Flat-head or T-25 Torx screwdriver (Fig. 34).
Rocker Arm
View Of The Rear Engine Cover
.003–.006
in.
mm)
(.076–.152
Feeler Gauge
Valve Stem
Remove
Screws
Remove
Screws
Fig. 37
The recommended clearance for both intake and exhaust
is .003 – .006 in. (.076 – 0.152 mm). Use a standard
automotive .005 in. (0.127 mm) feeler gauge. The feeler
gauge should slide between the rocker arm and valve stem
with a slight amount of resistance, without binding. See
Figures 36 and 37.
Fig. 34
13
| Categories | Lawn Mower Manual, MTD Blower and Vacuum Manuals, MTD Lawn Mower Manuals, Troy-Bilt Blower and Vacuum Manuals, Troy-Bilt Lawn Mower Manuals |
|---|---|
| Tags | MTD TB360BV, Troy-Bilt TB360BV |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Lawn Mower |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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