You can replace a Briggs and Stratton pull cord yourself in about 30 minutes with basic tools

The pull cord on a Briggs and Stratton engine wears out from repeated yanking and exposure to sun and moisture. When it breaks, snaps, or won't retract, you do not need a repair shop — the job is straightforward enough for a homeowner with a socket set and a few hand tools. The cord itself costs between $8 and $15, and the recoil assembly (the housing that holds it) costs $25 to $50 if that part is also damaged.

The process involves removing the recoil housing from the engine, disassembling it, threading in the new cord, and reassembling everything. The hardest part is usually getting the spring back in place without it flying across the garage. This guide walks you through each step in order.

Key Takeaways

  • You will need a replacement pull cord kit (around $10 to $15) and a socket set, screwdrivers, and pliers — no specialty tools required.
  • The recoil housing bolts to the top of the engine and comes off in under five minutes once you locate the bolts.
  • The spring inside the housing is under tension and can snap back suddenly, so keep your fingers clear and work slowly when disassembling.
  • The new cord threads through a hole in the housing and ties to the recoil pulley with a specific knot that prevents slipping.
  • Reassembly is the reverse of disassembly, but you must wind the spring correctly or the cord will not retract.

Gather your tools and the replacement cord

Before you start, you need the right cord. Briggs and Stratton pull cords come in different diameters — most residential mowers use 3/16-inch or 5/32-inch cord. Check your engine model number (stamped on the side of the engine block) and look up the correct size on the Briggs and Stratton website or your mower's manual. Buying a universal pull cord kit for your engine type is faster than guessing the diameter.

Gather a socket set (usually 8mm, 10mm, and 12mm sockets fit Briggs engines), a screwdriver set, needle-nose pliers, and a small container to hold bolts and springs as you remove them. Lay out a clean workspace — a workbench or cardboard on the ground works. You will also need a way to find the mower so it does not tip while you work; a block of wood wedged under the deck is usually enough.

Remove the recoil housing from the engine

Locate the recoil housing — it is the plastic or metal drum-shaped part on top of the engine where the pull cord emerges. Look underneath and around the sides for bolts holding it to the engine block. Most Briggs and Stratton engines have two to four bolts, usually 10mm or 12mm. Use your socket set to remove them and place the bolts in your container.

Lift the housing straight up and away from the engine. If it sticks, do not force it — there may be a bolt you missed or a small clip holding it. Once it is free, set it on your workspace with the pulley facing up. Do not pull the cord or turn the pulley at this point; the spring inside is under tension and will resist.

Disassemble the recoil housing carefully

The housing holds a spring, a pulley, and the cord. To access the cord, you need to remove the pulley. Look for a center bolt or clip holding the pulley to the housing — this is usually a 5/16-inch or 3/8-inch bolt. Before you remove it, use a marker to draw a line from the pulley to the housing so you can see how far the spring is wound. This mark will help you wind it back correctly later.

Remove the center bolt slowly. The spring will want to unwind, so keep one hand on the pulley to control it. Once the bolt is out, lift the pulley straight up. The spring will likely come with it, still attached to the pulley. If the spring stays in the housing, carefully lift it out by hand — do not let it snap back. Place the pulley and spring on your workspace, still keeping tension on the spring with your hand.

Now you can see where the old cord is tied to the pulley. It is usually knotted through a hole in the pulley or tied around a post. Cut the old cord and remove it completely. Untie or cut the knot holding it and pull the cord out through the hole in the housing.

Thread the new cord through the housing and tie it to the pulley

Take your new pull cord and melt or seal the cut ends with a lighter or match to prevent fraying. Once cooled, thread one end through the hole in the recoil housing from the outside. The cord should come out the inside where the pulley sits.

Tie the cord to the pulley using a knot that will not slip under tension. The standard knot is a figure-eight or a double overhand knot — tie it tight enough that pulling hard on the cord does not move the knot. Some cords come with a handle already attached; if yours does, thread the cord end (not the handle) through the housing hole. Once the knot is find, pull the cord gently to make sure the knot holds.

Wind the spring and reassemble the pulley

Before you put the pulley back, you need to wind the spring. Hold the pulley in one hand and the spring in the other. The spring should be coiled around the pulley shaft. Slowly rotate the pulley clockwise (or counterclockwise, depending on your engine model — check your manual) until the spring is wound tight. Use your alignment mark to wind it to the same tension it had before.

Once wound, lower the pulley back into the housing, keeping the spring coiled. Insert the center bolt and tighten it by hand first, then use your socket set to snug it down. Do not over-tighten — you only need enough pressure to hold the pulley in place. The spring should still have some give; if it feels rock-hard, you may have wound it too tight.

Reattach the housing to the engine and test the cord

Lower the recoil housing back onto the engine block, aligning the bolt holes. Insert the bolts and tighten them in a crisscross pattern (like tightening a car wheel) so the housing sits evenly. Use your socket set to snug them down, but again, do not over-tighten — you are just holding the housing in place, not crushing it.

Now test the cord. Pull it slowly and steadily. It should come out smoothly and retract back into the housing on its own. If it does not retract, the spring may not be wound tightly enough — you will need to disassemble again and wind it more. If the cord is hard to pull, the spring may be wound too tight. A few test pulls will tell you if the tension is right.

Frequently Asked Questions

What if the spring flies out when I disassemble the housing?

The spring is under tension and can snap back suddenly. If it escapes, do not chase it — let it unwind and then pick it up. You can rewind it by hand once it is loose. This is why working slowly and keeping one hand on the pulley is important. If the spring breaks or is damaged, you will need to order a replacement spring assembly, which usually costs $15 to $30.

How do I know if I wound the spring too tight or too loose?

Pull the cord all the way out. If it retracts smoothly and snaps back into the housing, the tension is right. If it does not retract at all, the spring is too loose — disassemble and wind it again. If the cord is very hard to pull, the spring is too tight. The cord should pull with moderate resistance, not feel like you are fighting it.

Can I use any type of rope or cord as a replacement?

No. Briggs and Stratton pull cords are made from nylon and sized to fit the hole in the housing and the pulley. Using the wrong diameter or material can cause the cord to slip, fray, or jam. Always buy a cord kit matched to your engine model.

What if the recoil housing itself is cracked or broken?

If the plastic housing is cracked or the pulley is damaged, replacing just the cord will not fix the problem. You will need to order a replacement recoil assembly for your engine model, which costs $25 to $50. Check your engine model number and order the correct assembly from a Briggs and Stratton dealer or online parts retailer.

Do I need to drain the fuel before I start?

It is not necessary to drain the fuel tank, but it is a good idea to let the engine cool for at least 30 minutes before you work on it. Make sure the fuel valve (if your mower has one) is turned off so fuel does not leak while the housing is removed. Never work on the mower while it is hot or while the engine is running.