How do I start my Petrol Chainsaw

Overview

Starting a petrol chainsaw safely requires correct preparation of the chain brake, fuel system, and starting sequence. Following the correct steps ensures reliable starting and safe operation.

Step-by-Step Guide

Step 1: Safety and Pre-Start Checks

Before starting, ensure:

• The chain is correctly tensioned
• The guide bar and chain are in good condition
• The chain brake is functioning correctly
• The chain is not touching any surface and is pointing away from your body

Important: Do not use the chainsaw if the chain brake is faulty.

Step 2: Test the Chain Brake

• Push the brake lever forward until it clicks (engaged)
• Confirm the chain does not move by hand
• Pull the brake lever back until it clicks again (disengaged)
• Confirm the chain now moves freely

If the lever does not click firmly in both positions, stop and contact support.

Step 3: Starting the Chainsaw (Cold Start)

• Engage the chain brake (push forward until it clicks)
• Set the switch to the START position
• Press the primer bulb 10 times until it is about ¾ full of fuel
• Pull the choke control fully out
• Place the chainsaw securely on the ground
• Pull the starter cord 4 times (engine may not start yet)
• Push the choke back in
• Pull the starter cord up to 5 more times until the engine starts
• Allow the engine to idle and warm up for ~30 seconds
• Disengage the chain brake before cutting

Step 4: Warm Restart

If the engine has recently been running:

• Do not usually use the choke
• Pull the starter cord until the engine starts
• Allow a short warm-up before use if needed

Important Safety Information

• Always test the chain brake before use
• Never start the chainsaw with the chain brake disengaged
• Keep the bar and chain clear of all objects during starting
• Always hold the chainsaw firmly on the ground when starting
• Allow the engine to warm before applying load

Frequently Asked Questions

Why won’t my petrol chainsaw start?

Common causes include incorrect choke position, insufficient priming, stale fuel, or not enough starter pulls.

Why does my chainsaw start then cut out?

This is usually caused by incorrect choke use or not allowing enough warm-up time.

Do I need to engage the chain brake when starting?

Yes. The chain brake must always be engaged before starting the engine.

How many times should I pull the starter cord?

Typically 4 pulls with choke, then up to 5 pulls after adjusting choke, depending on engine condition.

Can I start it without priming?

No. Priming is essential to deliver fuel to the carburettor for starting.