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MTX70 — OPERATION AND PARTS MANUAL — REV. #12 (02/22/12) — PAGE 13
MTX70 — BASIC ENGINE
Figure 1A. Engine Controls and Components
(Honda GX100)
INITIAL SERVICING
The engine (Figure 1A) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturers Engine
manual for instructions & details of operation and servicing.
1. Choke Lever –Used when starting the engine. Normally
used in cold weather conditions. In cold weather turn the
choke lever to the fully closed position, in warm weather
set choke lever half way or completely open.
2. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.024 - 0.028 inch (0.6 - 0.7 mm). Clean
spark plug once a week.
3. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
Operating the engine without an air filter, with a
damaged air filter, or a filter in need of
replacement will allow dirt to enter the engine,
causing rapid engine wear.
5. Dipstick/Oil Filler Cap – Remove this cap to determine if
the engine oil is low. Add oil through this filler port as
recommended in Table 3.
6. Oil Drain Plug – Remove this plug to remove oil from the
engine's crankcase.
4. Muffler – Used to reduce noise and emissions.
WARNING
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.