FAQs

2 min read

Servicing the fuel tank

Quick Links: How is the fuel tank serviced? Inside The Fuel Tank Removing And Cleaning The Tank How is the fuel tank serviced? Fuel tanks are...

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Why does my engine start and then shut down?

Many engine performance problems can be linked to maintenance issues such as stale fuel, dirty air filter, fouled spark plug, and deteriorated oil. A...

1 min read

Why does my engine's RPM seem to fluctuate (runs rough)?

Many engine performance problems can be linked to maintenance issues such as stale fuel, dirty air filter, fouled spark plug, and deteriorated oil. A...

1 min read

Vanguard/Commercial Series Engine Identification

How do I identify a Vanguard/Commercial Series engine? The Model, Type and Code numbers, stamped directly into the engine, are used to identify our...

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Servicing the valves

What are valves? All 4-stroke engines have intake and exhaust valves for each cylinder. These valves are used to control the flow of air and fuel...

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Engine Problem Solving Tips

Quick Links: Basic Repair Engine Won't Start Engine Runs Poorly Many engine performance problems can be linked to maintenance issues such as stale...

4 min read

How do you rebuild or overhaul an engine carburetor?

Quick Links: Removing the Carburetor Disassembling A Float-Type Carburetor Inspecting the Carburetor Inspecting Air-Fuel Mixture Screws Reassembling...

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Fuel recommendations

Fuel must meet these requirements for all 4 stroke cycle spark ignited engines. Gasoline with up to 10% ethanol (gasohol) is acceptable Clean, fresh,...

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What is the right spark plug and gap for my engine?

Quick Links: Find your spark plug type & gap Where is the spark plug located on my engine? Horizontal Engines Spark Plug Location Vertical Engines...

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What is the direct replacement for my engine?

There are many variables that come into play when replacing an existing engine with a new one (shaft extension, mounting base, overall fit, etc.)....

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How Can I Find Part Number For Engine Replacement Parts?

Quick Links: Where can I find my engine's part numbers? Locating the Engine Service Part Numbers on Illustrated Parts List My Engine Part Has More...

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Oil recommendations

*Below 40°F (4°C) the use of SAE 30 will result in hard starting and could cause a lack of lubrication failure. **Above 80°F (27°C) the use of 10W30...

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Replacing The Ignition

Quick Links: How do I replace the ignition? Installing And Adjusting A New Ignition Armature Testing A Stop Switch How do I replace the ignition?...

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How do I troubleshoot & repair common engine problems?

Quick Links: Equipment Engine Won't Start Step 1: Check Your Fuel Step 2: Clean the Carburetor Step 3: Check Spark Plug & Ignition Problems Step 4:...

How can I obtain a safety data sheet?

To obtain a safety data sheet of a product, fill out our Contact Us form. Please provide details on what product the request concerns in the...