TROUBLESHOOTING - GASOLINE ENGINE

TABLE 9. ENGINE TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

Difficult to start

 

 

 

 

 

 

Ignition plug being bridge?

Check ignition system.

 

 

 

Fuel is available but spark plug

Carbon deposit at ignition?

Clean or replace ignition.

 

 

will not ignite. (Power available

Short circuit due to defective

Replace insulators.

at high tension cable).

insulators?

 

 

 

 

 

 

 

Improper spark gap?

Set spark plug gap to the correct gap.

 

 

 

Fuel is available but spark plug

Short circuit at stop switch?

Check stop switch circuit. Replace stop switch if defective.

will not ignite. (Power NOT

 

 

 

 

available at high tension cable).

Ignition coil defective?

Replace ignition coil.

 

 

 

 

Muffler clogged with carbon

Clean or replace muffler.

 

deposits?

 

 

 

 

 

Mixed fuel quality is

Check fuel to oil mixture.

Fuel is available and spark plug

inadequate?

 

ignites (compression normal).

 

 

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

 

 

dust)?

 

 

 

 

 

Air Cleaner clogged?

Clean or replace air cleaner.

 

 

 

 

Defective cylinder head gasket?

Tighten cylinder head bolts or replace head gasket.

Fuel is available and spark plug

 

 

Cylinder worn?

Replace cylinder.

ignites (compression low ).

 

 

 

Spark plug loose?

Tighen spark plug.

 

 

 

Operation not satisfactory

 

 

 

 

 

 

Air cleaner clogged?

Clean or replace air cleaner.

 

 

 

Not enough power available

Air in fuel line?

Bleed (remove air) from fuel line.

 

 

(compression normal, no miss-

Fuel level in carbureator float

 

firing).

Adjust carbureator float

chamber improper?

 

 

 

 

 

 

Carbon deposits in cylinder?

Clean or replace cylinder

 

 

 

 

Ignition coil defective?

Flush fuel sytem and replace with fresh fuel.

Not enough power available

 

 

Ignition plug often shorts?

Replace ignition wires, clean ignition.

(compression normal, miss-

 

 

firing).

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

 

 

dust)?

 

 

 

 

 

Excessive carbon depostion in

Clean or replace crankcase.

 

combustion chamber?

 

 

 

 

Engine overheats.

Exhaust or muffler clogged with

Clean or replace muffler.

 

carbon.

 

 

 

 

 

Spark plug heat value incorrect?

Replace spark plug with correct type spark plug.

 

 

 

PAGE 38 — MP1 — OPERATION AND PARTS MANUAL — REV. #3 (03/29/10)

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Multiquip MP1415E, MP1420E, MP1455H manual Troubleshooting Gasoline Engine, Engine Troubleshooting
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MP1420E, MP1415E, MP1455H specifications

The Multiquip MP1455H, MP1415E, and MP1420E are part of Multiquip’s line of high-performance concrete and masonry saws, designed to cater to the diverse needs of the construction industry. Each model offers unique features and technologies tailored to enhance productivity, efficiency, and user comfort.

Starting with the MP1455H, this saw is powered by a robust Honda GX390 engine, delivering reliable performance for heavy-duty cutting tasks. It boasts a 14-inch cutting blade capacity, enabling users to cut through various materials with ease. The MP1455H is equipped with a user-friendly depth control system, allowing for precise cuts and adjustments on the fly. Its rugged frame is constructed with durable materials, ensuring longevity even in the most challenging job site conditions.

The MP1415E is an electric-powered saw designed for quieter operation without compromising power. It features a 15-inch blade capacity, making it suitable for a variety of applications such as asphalt, concrete, and masonry. This model is particularly appreciated for its low vibration technology, significantly reducing operator fatigue. Additionally, the MP1415E includes an integrated water system that promotes clean cutting and minimizes dust, promoting a healthier work environment.

The MP1420E rounds out the lineup with enhanced features for improved power and efficiency. Like the MP1415E, this model is electric-powered, but it accommodates a 20-inch blade, making it ideal for larger cutting tasks. The saw is designed with a heavy-duty steel frame that provides stability and minimizes flex during operation. Featuring advanced electronic controls, the MP1420E allows users to monitor performance metrics easily, making it suitable for both experienced and novice operators.

All three models incorporate advanced cooling systems to prolong blade life and maintain optimal performance. Their compact designs ensure ease of transport, and they are suitable for both indoor and outdoor applications, providing versatility in various job sites.

In summary, the Multiquip MP1455H, MP1415E, and MP1420E concrete and masonry saws are engineered to meet the rigorous demands of the construction industry. With powerful engines, user-friendly features, and advanced technologies, these saws deliver exceptional performance, reliability, and ease of use.
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