Idle Speed Adjustment; Fuel Filter; Air Filter; Starter Unit - Efco MP 3000 Operator's Instruction Manual

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MAINTENANCE

Idle Speed Adjustment

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Before adjusting the carburetor, clean the air filter (B) as shown
Fig. 28, refer Maintenance-Air Filter Sections for details. Allow
the engine to warm up prior to carburetor adjustment.
This engine is designed and manufactured in order to comply with
EPA (Environmental Protection Agency) Phase 2 regulations.
The carburetor is factory set and should not require adjusting.
The carburetor will permit only limited adjustment of the "T"
screw (Fig. 29).
WARNING: Don't modify the carburetor in any way in
such case the engine will not run in compliance with
emissions regulations.
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• If the engine starts, runs, and accelerates but will not idle; turn
the idle speed screw "T" clockwise to increase idle speed
(Fig. 29).

Fuel Filter

Check fuel filter periodically.
To clean the pump, detach hose mount (A, Fig.30) and gasket (B,
Fig.31) and remove fuel filter (Fig.32).
CAUTION: When refitting, ensure that the hose mount is
correctly positioned (see Fig.33).
Replace it if too dirty (Fig. 32).

Air Filter

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WARNING: Do not clean filter in gasoline or other
flammable solvent to avoid creating a fire hazard or
producing harmful evaporative emissions.
Every 8-10 operating hours, open the cover (A, Fig. 28) and
remove the filter (B). Wash with water and blow at a distance with
compressed air (Fig.34). A used air filter can never be completely
cleaned. It is advisable to replace your air filter with a new one
after six month of operation. Make sure the cover and the support
are clean before fitting the new filter.
CAUTION: Never run the engine without the air filter,
serious damage could result.
Make sure the air filter is correctly placed in the
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air filter cover before reassembly. Always replace
damaged filters. Do not clean a filter with a brush.

Starter Unit

WARNING: The coil spring is under tension and
could fly apart causing serious injuries. Never try to
disassembly or modify it.

Engine

Clean the cylinder fins with compressed air or a brush periodically.
Dangerous overheating of engine may occur due to impurities on
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the cylinder.
WARNING: Never run the water pump without all the
parts, including starting housing, securely in place.
Because parts can fracture and pose a danger of
thrown objects, leave repairs to the fan to trained
Servicing Dealers.

Spark Plug

This engine uses a Champion RCJ-4 with .02" (0.5 mm) electrode
gap (Fig. 35). Use an exact replacement and replace every six
months or more frequently, if necessary.