When choosing the best rope for pull starting small engines like lawnmowers, chainsaws, snowblowers, and generators, there are a few key factors to consider:
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Rope Construction
The rope used for pull starts needs to be durable and resistant to fraying. Here are some of the most common rope constructions used:
- Braided polyester – This type of rope is very durable and abrasion resistant. The braided construction helps prevent fraying.
- Braided nylon – Nylon rope is stretchy which can help absorb the shock when pulling. It’s abrasion resistant but not quite as durable as polyester.
- Cotton – Cotton rope is softer and more comfortable to pull than synthetic rope. But it wears out more quickly.
Polyester and nylon ropes are generally preferred over cotton for engine pull starts due to their durability and weather resistance.
Diameter
The diameter of the starter rope affects how easy it is to grip and pull. 5/16 inch is the most common diameter used for small engine pull starters. Larger engines may use 3/8 or 7/16 inch rope:
| Rope Diameter | Recommended Use |
|---|---|
| 1/4 inch | Very small engines like string trimmers |
| 5/16 inch | Most lawn mowers, tillers, snowblowers, generators |
| 3/8 inch | Large lawn mowers, riding mowers |
| 7/16 inch | Extra large engines |
Thicker rope is easier to grip but more difficult to pull quickly. So 5/16 inch offers a good balance for most hand start engines.
Length
The optimal starter rope length depends on the engine size and number of wraps around the pulley:
- Small engines (up to 5 HP): 36-42 inches
- Medium engines (6-10 HP): 42-48 inches
- Large engines (10+ HP): 48-72 inches
Having extra rope length allows for more wraps around the pulley to reduce the force required to turn over the engine. But too much extra length can cause the rope to drag and rub against the ground.
Rope Handle
A handle at the end of the pull start rope improves grip and prevents rope burn on your hands. Here are some common handle options:
- Plastic molded handle – Durable and comfortable, won’t absorb water
- Rubber cushioned handle – Provides extra comfortable grip
- Wooden handle – Simple and lightweight but can crack over time
- Looped handle – Creates an easy pull grip if no molded handle is attached
Attaching a handle to the rope end is recommended for easier and safer pulling. The handle can be replaced when worn without needing to replace the entire rope.
Recommended Ropes
Here are some top rated ropes that work well for small engine pull starts:
| Rope | Key Features |
|---|---|
| FITS Power Equipment Pull Rope | – Braided polyester construction – 5/16 inch diameter – 48 inch length – Plastic molded handle |
| Husqvarna Starter Rope | – Heavy duty braided polyester – Pre-stretched for reduced recoil – 5/16 inch diameter – 50 inch length |
| Oregon Starter Rope | – Braided nylon construction – Cushioned rubber handle – 5/16 inch diameter – 40 inch length |
When selecting a replacement rope, make sure to choose the correct diameter and length for your engine model. The construction material is less important than getting the right size rope.
Installing a Pull Start Rope
Here are some tips for installing a new pull start rope on a small engine:
- Detach the recoil spring and old rope according to the engine manufacturer’s instructions.
- Feed the new rope through the starter housing from the inside of the engine.
- Secure the end of the rope through the hole in the pulley.
- Wind the rope clockwise around the pulley 3-4 times.
- Pull the rope through the starter handle opening and attach the handle.
- Slowly retract the recoil spring and rope into the housing until taut.
- Replace the recoil spring and starter housing cover.
- Pull the rope out several times to check for smooth retraction.
Be careful during installation as the recoil spring is under tension. Wear safety glasses and gloves in case the spring pops loose.
Conclusion
Choosing a starter rope designed specifically for small engines is the best option. Look for braided polyester or nylon ropes around 5/16 inch diameter and 36-50 inches long. Install the rope properly onto the pulley and handle to ensure smooth retraction and a long service life. With the right rope, you’ll get years of reliable cold starting for your outdoor power equipment.