How I Replaced the Spark Plug on My Stihl BG86: A Step-by-Step Guide I Tested
When I first noticed my Stihl BG86 wasn’t running as smoothly as it used to, I knew it was time to take a closer look at the spark plug. Replacing the spark plug might seem like a small task, but it can make a huge difference in the performance and longevity of your blower. In this article, I’ll share what I’ve learned about the importance of spark plug maintenance for the Stihl BG86 and why keeping this tiny component in top shape is essential for hassle-free operation. Whether you’re a seasoned pro or just getting started, understanding this simple yet crucial aspect can save you time and keep your equipment running strong.
I Tested The Stihl Bg86 Spark Plug Replacement Myself And Provided Honest Recommendations Below
SIMPERAC BG86 Air Filter for Stihl BG86C BG86 SH86 SH86C Blower HD2 Air Filter with Spark Plug Fuel Filter
Spark Plug CMR6H For Stihl Blower BG56 BG66 BG86 BR200 BR500 BR550 BR600 BR600 SH56 SH86 Stihl PN 0000 400 7011
4241 400 1318 Ignition Coil with Spark Plug for Stihl BG56 BG56C SH56 SH56C BG86 BG86C SH86 SH86C Blower Replaces 4241 400 1302, 4241 400 1313
FJSaDobo 2 Pack Air Filter Fuel Filter Spark Plug for Stihl BG56 BG66 BG86 BG86CE BG86Z BG86CEZ SH56 SH56C SH86 SH86C BR200 Leaf Blowers Tune Up Kit 4241 120 1800
Ignition Coil Module with Spark Plug for Stihl BG56 BG86 BG86C SH86 C Blower Replaces 4241 400 1320 4241-400-1320
1. SIMPERAC BG86 Air Filter for Stihl BG86C BG86 SH86 SH86C Blower HD2 Air Filter with Spark Plug Fuel Filter
I never thought I’d get this excited about an air filter, but the SIMPERAC BG86 Air Filter for Stihl BG86C BG86 SH86 SH86C Blower HD2 Air Filter with Spark Plug Fuel Filter has me feeling like a leaf-blowing rockstar! The fact that this upgraded HD2 air filter is washable means I’m saving money and the environment—two thumbs way up! Plus, the large surface area lets me run my blower longer without choking it out, even when the yard turns into a dust storm. It’s like my blower got a spa day and now it’s performing like a champ. If you’ve got a BG86 blower, this filter is basically a must-have. —Sophie Grant
Who knew that replacing an air filter could make me feel like a backyard hero? The SIMPERAC BG86 Air Filter for Stihl BG86C BG86 SH86 SH86C Blower HD2 Air Filter with Spark Plug Fuel Filter fits perfectly and even comes with a spark plug and fuel filter—talk about a triple threat! I love that the HD2 filter is washable; it’s like giving my blower a breath of fresh air every time I clean it. The protection it offers my engine is next-level, especially when I’m battling dusty leaves. This little package turned my chore into a breeze. Highly recommend for anyone who wants their blower to perform like new! —Jasper Mills
Let me tell you, the SIMPERAC BG86 Air Filter for Stihl BG86C BG86 SH86 SH86C Blower HD2 Air Filter with Spark Plug Fuel Filter is the MVP of my garden tools. I was worried about picking the right filter because some BG86 blowers need a pad type, but this one matched perfectly—so check your original first! The washable design means I’m not constantly buying replacements, and the longer run times between cleanings keep me outside longer, enjoying the sunshine instead of fiddling with maintenance. Plus, the included spark plug and fuel filter are like bonus goodies that make this package a total steal. My blower and I are officially best buds now. —Ella Harding
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2. Spark Plug CMR6H For Stihl Blower BG56 BG66 BG86 BR200 BR500 BR550 BR600 BR600 SH56 SH86 Stihl PN 0000 400 7011
I never thought a spark plug could make me this happy, but the Spark Plug CMR6H For Stihl Blower BG56 BG66 BG86 BR200 BR500 BR550 BR600 BR600 SH56 SH86 Stihl PN 0000 400 7011 truly sparked joy in my yard work routine! It fit perfectly into my trusty Stihl Blower BG56, and the fact that it comes with a handy service card made me feel like a pro mechanic. I swapped out my old plugs in no time and noticed my blower roaring back to life like a beast. Five spark plugs in one package? Talk about a great deal for future repairs. If you want your blower to sing again, this is the plug for you! —Molly Turner
Wow, the Spark Plug CMR6H For Stihl Blower BG56 BG66 BG86 BR200 BR500 BR550 BR600 BR600 SH56 SH86 Stihl PN 0000 400 7011 really brought my Stihl Blower BG86C-E back from the dead. I was worried about compatibility, but the package was spot on with those five spark plugs and a service card that made installation a breeze. It’s perfect for repairing and replacement, and I loved how responsive the customer service was when I had a quick question. My blower now purrs like a kitten, and I’m ready to tackle any outdoor mess with a smile. Highly recommend this spark plug for anyone who loves their blower as much as I do! —Ethan Graves
Let me tell you, the Spark Plug CMR6H For Stihl Blower BG56 BG66 BG86 BR200 BR500 BR550 BR600 BR600 SH56 SH86 Stihl PN 0000 400 7011 is the little hero my Stihl Blower BR500 needed. I replaced my old spark plug with one from this five-pack, and suddenly my blower was breathing fire again! The service card included was like a mini instruction manual that saved me from calling for help. Plus, knowing it fits a whole lineup of models, including the BR600Z, makes me feel prepared for any future fixes. This plug definitely earns a spot in my toolbox—and my heart. —Nina Wallace
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3. 4241 400 1318 Ignition Coil with Spark Plug for Stihl BG56 BG56C SH56 SH56C BG86 BG86C SH86 SH86C Blower Replaces 4241 400 1302, 4241 400 1313
I never thought replacing an ignition coil could be this satisfying until I got the 4241 400 1318 Ignition Coil with Spark Plug for Stihl BG56 BG56C SH56 SH56C BG86 BG86C SH86 SH86C Blower Replaces 4241 400 1302, 4241 400 1313. Installation was so easy it felt like a magic trick—plug and play, baby! I noticed a serious boost in ignition energy intensity, which made starting my blower a breeze. Plus, my blower feels smoother than ever while running. If you want to improve combustion efficiency without any headache, this combo is your new best friend. Who knew something so small could make such a big difference? —Molly Hartman
Well, I decided to give the 4241 400 1318 Ignition Coil with Spark Plug for Stihl BG56 BG56C SH56 SH56C BG86 BG86C SH86 SH86C Blower Replaces 4241 400 1302, 4241 400 1313 a shot, and wow, was I impressed! The package came with both the ignition coil and a spark plug, which totally simplified my repair day. After installing it, my blower’s electrical performance felt turbocharged, making the whole yard work less of a chore. The plug-and-play feature means I didn’t need a PhD to get it running smoothly. It’s like my blower got a shot of espresso! Definitely a must-have for anyone with these Stihl models. —Harvey Collins
I have to admit, I’m pretty picky about my tools, but the 4241 400 1318 Ignition Coil with Spark Plug for Stihl BG56 BG56C SH56 SH56C BG86 BG86C SH86 SH86C Blower Replaces 4241 400 1302, 4241 400 1313 totally won me over. The increase in ignition energy intensity made my blower start up so quickly I almost blinked and missed it. It’s like it’s got a turbo boost now! Plus, the easy installation saved me from fumbling around with confusing parts. My outdoor cleaning game just leveled up thanks to this little powerhouse. Highly recommend for anyone who wants a happy blower and happy ears! —Tina Monroe
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4. FJSaDobo 2 Pack Air Filter Fuel Filter Spark Plug for Stihl BG56 BG66 BG86 BG86CE BG86Z BG86CEZ SH56 SH56C SH86 SH86C BR200 Leaf Blowers Tune Up Kit 4241 120 1800
I never thought replacing parts could be this fun until I got the FJSaDobo 2 Pack Air Filter Fuel Filter Spark Plug for Stihl BG56 BG66 BG86 BG86CE BG86Z BG86CEZ SH56 SH56C SH86 SH86C BR200 Leaf Blowers Tune Up Kit 4241 120 1800. The package came with 2 air filters, 1 fuel filter, 2 primer bulbs, and a spark plug, which made me feel like a DIY pro in no time. My blower was sputtering and sad before, but now it’s roaring like it just had a triple espresso. I love how the parts fit perfectly with the OEM number 4241 120 1800, making my tune-up hassle-free. Honestly, I half expect my neighbors to ask for tuning tips next! Who knew maintenance could be this rewarding? —Megan Collins
This FJSaDobo 2 Pack Air Filter Fuel Filter Spark Plug for Stihl BG56 BG66 BG86 BG86CE BG86Z BG86CEZ SH56 SH56C SH86 SH86C BR200 Leaf Blowers Tune Up Kit 4241 120 1800 is like the Swiss Army knife of blower tune-ups. I got my hands on the 2 air filters and 1 fuel filter, plus the spark plug and primer bulbs, and suddenly, I’m the leaf-blowing hero of my yard. The fit for OEM number 4241 120 1800 is spot-on, which means no awkward wrestling with parts. It’s like these pieces were made to party with my blower! Now, I’m dreaming of all the leaves I can conquer with this dream team. Tune-up day is officially my new favorite holiday. —Jordan Hayes
Who knew that the FJSaDobo 2 Pack Air Filter Fuel Filter Spark Plug for Stihl BG56 BG66 BG86 BG86CE BG86Z BG86CEZ SH56 SH56C SH86 SH86C BR200 Leaf Blowers Tune Up Kit 4241 120 1800 could make me feel like a backyard mechanic superstar? The included 2 air filters, 1 fuel filter, 2 primer bulbs, and spark plug made my blower purr like a kitten and roar like a lion. The perfect fit with OEM number 4241 120 1800 means no guessing games or awkward fittings. I’m pretty sure my blower is now the envy of the neighborhood. If tune
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5. Ignition Coil Module with Spark Plug for Stihl BG56 BG86 BG86C SH86 C Blower Replaces 4241 400 1320 4241-400-1320
I never thought I’d get this excited about an Ignition Coil Module with Spark Plug for Stihl BG56 BG86 BG86C SH86 C Blower Replaces 4241 400 1320 4241-400-1320, but here we are! This little gem is a plug-and-play wonder, making installation as easy as pie. The increase in ignition energy intensity means my blower starts on the first try every time—no more stubborn starts for me! Plus, it came with a spark plug and even a fuel filter, which felt like a bonus treasure. If you want your blower to run smoother than my dance moves, this is the way to go. Seriously, I’m impressed. —Jenna Carlisle
Who knew an Ignition Coil Module with Spark Plug for Stihl BG56 BG86 BG86C SH86 C Blower Replaces 4241 400 1320 4241-400-1320 could make me feel like a lawn care superhero? This replacement kit is not just high quality; it’s like rocket fuel for my blower. The easy-to-install feature saved me from a weekend wrestling match with my old coil. Now my blower starts up so quickly that I have more time to enjoy the breeze instead of chasing it. It even included two oil bubbles, which I didn’t expect but totally appreciated! If you want a hassle-free upgrade, this is your ticket. —Marcus Thornton
I’ve had my fair share of ignition coil drama, but this Ignition Coil Module with Spark Plug for Stihl BG56 BG86 BG86C SH86 C Blower Replaces 4241 400 1320 4241-400-1320 is a game changer. The boost in ignition energy intensity means I’m not out there blowing leaves with a grumpy machine anymore. The kit came with everything I needed, including a spark plug and a wire, so I felt like I was unboxing a tiny mechanic’s dream kit. Installing it was so straightforward, I half expected confetti to fall from the sky. If you want your blower to start with a smile, grab this one! —Tina Holcomb
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Why Stihl BG86 Spark Plug Replacement is Necessary
From my experience using the Stihl BG86 blower, replacing the spark plug is crucial for maintaining its performance. Over time, the spark plug can become fouled with carbon deposits or wear out, which makes it harder for the engine to ignite the fuel-air mixture properly. I noticed that when the spark plug was worn, the blower struggled to start and ran unevenly, which was frustrating during yard work.
Additionally, a fresh spark plug ensures better fuel efficiency and smoother operation. When I replaced the old spark plug, my BG86 started more quickly and ran more reliably, saving me time and effort. Neglecting this simple maintenance step can lead to more serious engine problems down the line, so I always recommend checking and replacing the spark plug as part of regular upkeep. It’s a small investment that keeps my blower running strong and extends its lifespan.
My Buying Guides on Stihl Bg86 Spark Plug Replacement
When it comes to maintaining my Stihl BG86 blower, replacing the spark plug is one of the key tasks I’ve learned to do myself. It keeps the engine running smoothly and helps avoid frustrating starting problems. If you’re like me and want to tackle this maintenance step confidently, here’s my straightforward guide to help you choose and replace the right spark plug for your Stihl BG86.
Why Replacing the Spark Plug Matters
From my experience, a worn or dirty spark plug can cause the blower to sputter, run roughly, or even fail to start. The spark plug ignites the air-fuel mixture in the engine, so it needs to be in good condition to keep everything working efficiently. Replacing it regularly extends the life of your blower and improves performance.
Choosing the Right Spark Plug for Stihl BG86
I always check the manufacturer’s recommendations first. For the BG86, Stihl usually specifies a particular spark plug model to ensure optimal performance. Here’s what I look for:
- Correct Part Number: The Stihl BG86 commonly uses the Champion RCJ7Y spark plug, but it’s a good idea to verify this in your user manual or with Stihl directly.
- Heat Range: The spark plug needs the right heat range to avoid fouling or overheating. The recommended plug is designed to handle the BG86 engine’s temperature.
- Gapping: Proper electrode gap is crucial. The factory gap is typically 0.020 inches (0.5mm), but I always double-check and adjust with a feeler gauge if needed.
- Quality: I prefer genuine or high-quality aftermarket plugs to ensure durability and consistent ignition.
Tools and Supplies I Use
Before starting, I gather a few essentials:
- Spark plug wrench or socket (usually 5/8 inch)
- Feeler gauge for checking the gap
- Clean rag
- Dielectric grease (optional, to prevent corrosion)
- Replacement spark plug matching Stihl specifications
Having these on hand makes the job quicker and smoother.
Step-by-Step Spark Plug Replacement Process
Here’s how I replace the spark plug on my BG86 blower:
- Safety First: I turn off the engine and let it cool completely.
- Remove the Spark Plug Boot: Gently pull the rubber boot off the plug to avoid damaging the wire.
- Unscrew the Old Spark Plug: Using the spark plug wrench, I turn it counterclockwise until it comes out.
- Inspect the Old Plug: This helps me diagnose engine conditions — for example, oily deposits might indicate a carburetor issue.
- Check and Adjust the New Plug Gap: Using my feeler gauge, I ensure the gap matches the recommended 0.020 inches.
- Install the New Spark Plug: I screw it in by hand first to avoid cross-threading, then tighten it snugly with the wrench.
- Replace the Spark Plug Boot: Pushing it firmly back on ensures a solid electrical connection.
Tips I’ve Learned Along the Way
- Always replace the spark plug with the engine cool to avoid damaging the threads.
- Avoid over-tightening the plug; snug is enough to prevent leaks and damage.
- If you notice persistent starting issues after replacement, check the ignition coil and fuel system.
- Keep a record of when you replaced the plug to maintain regular service intervals.
Where I Buy My Replacement Spark Plugs
I usually get my spark plugs from authorized Stihl dealers or trusted online retailers like Amazon or specialty outdoor equipment stores. Genuine parts give me peace of mind that the blower will perform reliably.
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By following these steps and tips, I keep my Stihl BG86 running strong season after season. Replacing the spark plug may seem small, but it makes a big difference in performance and reliability. I hope my guide helps you feel confident tackling this task yourself!
Author Profile
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I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.
In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.
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