Starting a 170 Stihl Chainsaw: Troubleshoot (7 Pro Tips)

Starting a Stihl MS 170 Chainsaw: Troubleshooting and Budgeting for Success

Have you ever been ready to tackle a pile of firewood, the crisp autumn air nipping at your cheeks, only to find your trusted chainsaw refusing to cooperate? It’s a frustrating experience, one I’ve faced more times than I care to admit. You pull the cord, again and again, maybe even flood the engine in your desperation. The silence that follows is deafening, especially when the sun is setting and that woodpile isn’t getting any smaller.

This article isn’t just about troubleshooting your Stihl MS 170; it’s about ensuring that your investment in this essential tool pays off, not only in terms of performance but also in managing the costs associated with its upkeep and the firewood projects it helps you accomplish. We’ll delve into common starting problems, their solutions, and, crucially, how to factor chainsaw maintenance and fuel costs into your overall firewood budget. I’ll share some insights I’ve gained over the years, from sourcing affordable fuel mixes to performing preventative maintenance that can save you a small fortune in repairs. So, let’s get that saw roaring and those logs split!

Troubleshooting Your Stihl MS 170: 7 Pro Tips to Get You Cutting

Before we dive into the budgeting aspect, let’s address the immediate problem: getting your Stihl MS 170 started. Here are seven tips, honed from years of experience and the occasional frustrating afternoon, to help you troubleshoot common starting issues:

1. Fuel Check: The Obvious, Yet Often Overlooked

   • The Issue: Stale fuel is the number one culprit for starting problems. Gasoline degrades over time, especially when mixed with oil.
   • The Fix: Always use fresh fuel, ideally mixed within the last 30 days. I learned this the hard way after leaving a chainsaw idle over winter with fuel in the tank. Come spring, it wouldn’t start, and a carb cleaning was in order.
   • Data Point: According to Stihl, using fuel older than 30 days can lead to starting problems and engine damage.
   • Actionable Tip: Drain the fuel tank and carburetor if you plan to store your chainsaw for more than a month. Use a fuel stabilizer to extend the life of your fuel mixture if you can’t use it within that timeframe.

   • Spark Plug Inspection: A Quick Visual Check

   • The Issue: A fouled or damaged spark plug won’t ignite the fuel mixture, plain and simple.
   • The Fix: Remove the spark plug and inspect it. It should be clean and dry. If it’s wet, it could indicate flooding. If it’s black and sooty, it’s likely fouled.
   • Data Point: A new spark plug for a Stihl MS 170 typically costs between $5 and $10.
   • Actionable Tip: Clean a fouled spark plug with a wire brush. If it’s damaged or heavily fouled, replace it. Ensure the spark plug gap is correct (refer to your owner’s manual for the specific gap for your MS 170). The correct gap is crucial for proper ignition. I use a spark plug gap tool, which is an inexpensive but invaluable addition to my toolkit.

   • Air Filter Examination: Breathing Easy for Performance

   • The Issue: A clogged air filter restricts airflow to the engine, leading to a rich fuel mixture and starting problems.

   • The Fix: Remove the air filter and inspect it. If it’s dirty, clean it with warm, soapy water. Allow it to dry completely before reinstalling.
   • Data Point: A new air filter for a Stihl MS 170 costs around $5-$15.
   • Actionable Tip: Clean your air filter regularly, especially in dusty conditions. I typically clean mine after every 5-10 hours of use. A clean air filter not only helps with starting but also improves engine performance and fuel efficiency.

   • Flooding Troubles: The Unwanted Excess

   • The Issue: Too much fuel in the cylinder can prevent the engine from starting.
   • The Fix: Remove the spark plug and pull the starter cord several times to clear excess fuel from the cylinder. Allow the cylinder to air out for a few minutes. Reinstall the spark plug and try starting the saw again.
   • Data Point: Repeatedly pulling the starter cord with the choke engaged can easily flood the engine.
   • Actionable Tip: When starting a cold engine, use the choke according to the manufacturer’s instructions. Once the engine starts, immediately disengage the choke. I have a tendency to be overzealous with the choke, and I’ve learned to be more patient and listen to the engine.

   • Carburetor Adjustments: When Precision Matters

   • The Issue: An improperly adjusted carburetor can cause starting problems, poor performance, and excessive fuel consumption.

   • The Fix: Carburetor adjustment is best left to a qualified technician. However, if you’re comfortable making adjustments, consult your owner’s manual for specific instructions.
   • Data Point: Carburetor adjustment requires specialized tools and knowledge.
   • Actionable Tip: Before attempting any carburetor adjustments, ensure the fuel filter and air filter are clean. A dirty fuel filter can mimic carburetor problems. If you’re unsure, take your chainsaw to a qualified repair shop. I once tried to adjust a carburetor without proper knowledge and ended up making the problem worse.

   • Primer Bulb Check: The Pumping Action

   • The Issue: A cracked or damaged primer bulb won’t properly prime the carburetor, leading to starting difficulties.
   • The Fix: Inspect the primer bulb for cracks or damage. If it’s damaged, replace it.
   • Data Point: A replacement primer bulb for a Stihl MS 170 costs around $5-$8.
   • Actionable Tip: Check the primer bulb regularly for cracks or deterioration, especially if you use your chainsaw frequently. I’ve found that exposure to sunlight and certain fuel additives can accelerate the degradation of the primer bulb.

   • Ignition System: The Spark of Life

   • The Issue: A faulty ignition coil or other ignition system components can prevent the engine from starting.

   • The Fix: Testing the ignition system requires specialized tools and knowledge.
   • Data Point: Ignition system repairs can be costly.
   • Actionable Tip: If you’ve checked all the other components and your chainsaw still won’t start, it’s likely an ignition system problem. Take your chainsaw to a qualified repair shop for diagnosis and repair. I once spent hours troubleshooting a chainsaw, only to discover it was a faulty ignition coil. It’s often more cost-effective to let a professional handle these types of repairs.

Budgeting for Your Stihl MS 170 and Firewood Projects

Now that we’ve covered troubleshooting, let’s get down to the financial nitty-gritty. Understanding the costs associated with your chainsaw and firewood projects is essential for staying within budget and making informed decisions.

1. Initial Investment: The Cost of Entry

• Chainsaw Purchase: The Stihl MS 170 is a popular choice for homeowners due to its affordability and ease of use. Expect to pay between $200 and $250 for a new MS 170. I bought mine second-hand for $150, but I had to factor in the cost of a new chain and air filter.
• Safety Gear: Safety should always be your top priority. Invest in a helmet with a face shield, hearing protection, chainsaw chaps, and work gloves. These items can cost anywhere from $100 to $200, depending on the quality and brand. I always tell people: “Invest in safety gear first, then worry about the chainsaw.”
• Tools and Accessories: You’ll need a few essential tools and accessories, such as a chainsaw file, bar oil, fuel can, and possibly a wedge for felling trees. These items can add another $50 to $100 to your initial investment. A good chainsaw file is worth its weight in gold. A dull chain not only cuts poorly but also increases the risk of kickback.

Total Initial Investment: Expect to spend between $350 and $550 to get started with your Stihl MS 170 and necessary safety gear.

2. Ongoing Costs: Fuel, Oil, and Maintenance

• Fuel: The Stihl MS 170 requires a 50:1 fuel-to-oil mixture. The cost of fuel will vary depending on your location and the price of gasoline. I typically pay around $3.50 per gallon for gasoline and $15 per quart for two-cycle oil.
  • Data Point: A gallon of 50:1 fuel mixture will cost approximately $4.10, assuming a gasoline price of $3.50 per gallon and a two-cycle oil price of $15 per quart.
  • Actionable Tip: Buy two-cycle oil in bulk to save money. Consider using ethanol-free gasoline to prevent fuel system problems.
• Bar Oil: Bar oil is essential for lubricating the chain and bar, reducing friction and wear. I typically use about one quart of bar oil per month during the cutting season. Expect to pay around $10-$15 per quart for quality bar oil.
  • Data Point: Using the wrong type of oil or not using enough oil can damage the chain and bar, leading to costly repairs.
  • Actionable Tip: Use a high-quality bar oil specifically designed for chainsaws. Check the oil level frequently and refill as needed. I’ve found that using vegetable-based bar oil is a more environmentally friendly option, although it can be slightly more expensive.
• Chain Sharpening: A sharp chain is essential for efficient and safe cutting. You can sharpen the chain yourself with a chainsaw file, or you can take it to a professional. Professional chain sharpening typically costs between $10 and $15 per chain.
  • Data Point: A dull chain can increase fuel consumption by as much as 20%.
  • Actionable Tip: Learn how to sharpen your chainsaw chain yourself. It’s a valuable skill that will save you time and money. I use a chainsaw filing guide to ensure consistent and accurate sharpening.
• Chain Replacement: Chains eventually wear out and need to be replaced. A new chain for a Stihl MS 170 costs around $20-$30.
  • Data Point: The lifespan of a chainsaw chain depends on the type of wood you’re cutting and how well you maintain the chain.
  • Actionable Tip: Inspect your chainsaw chain regularly for wear and damage. Replace the chain when it becomes excessively worn or damaged. I typically get about 50-75 hours of cutting time out of a chain before it needs to be replaced.
• Air Filter and Spark Plug Replacement: Air filters and spark plugs need to be replaced periodically. A new air filter costs around $5-$15, and a new spark plug costs around $5-$10.
  • Data Point: A dirty air filter and a fouled spark plug can reduce engine performance and fuel efficiency.
  • Actionable Tip: Replace your air filter and spark plug annually, or more frequently if you use your chainsaw heavily. I keep a spare air filter and spark plug on hand so I can quickly replace them when needed.
• Repairs: Chainsaws can break down, and repairs can be costly. Budget for potential repairs, such as carburetor cleaning, fuel line replacement, or ignition system repairs.
  • Data Point: The average cost of chainsaw repair ranges from $50 to $200, depending on the type of repair.
  • Actionable Tip: Perform regular maintenance to prevent costly repairs. Keep your chainsaw clean, lubricated, and properly adjusted. Consider purchasing an extended warranty for your chainsaw.

Total Ongoing Costs: Expect to spend between $50 and $150 per year on fuel, oil, maintenance, and repairs, depending on how frequently you use your chainsaw.

3. Firewood Costs: Sourcing, Processing, and Storage

• Sourcing Firewood: You can either purchase firewood or harvest it yourself. Purchasing firewood typically costs between $150 and $300 per cord, depending on the type of wood and your location. Harvesting firewood yourself can save you money, but it requires time, effort, and the necessary equipment.
  • Data Point: The average price of firewood in the United States is around $200 per cord.
  • Actionable Tip: Shop around for the best firewood prices. Consider purchasing firewood in bulk to save money. If you harvest firewood yourself, obtain the necessary permits and follow all safety regulations. I’ve found that contacting local tree removal services is a great way to source free or low-cost firewood. They’re often willing to drop off logs that they would otherwise have to dispose of.
• Processing Firewood: Processing firewood involves cutting, splitting, and stacking the wood. You can use a chainsaw to cut the wood to length, a splitting axe or a log splitter to split the wood, and your own labor to stack the wood.
  • Data Point: A log splitter can significantly reduce the time and effort required to split firewood.
  • Actionable Tip: Invest in a quality splitting axe or a log splitter to make the job easier. Consider renting a log splitter if you only need it for a short period of time. I splurged on a hydraulic log splitter a few years ago, and it has been a game-changer. It has saved me countless hours of back-breaking labor.
• Storage: Firewood needs to be stored properly to dry and season. Stack the wood in a well-ventilated area, away from moisture.
  • Data Point: Properly seasoned firewood burns more efficiently and produces less smoke.
  • Actionable Tip: Stack your firewood off the ground to prevent moisture from wicking up into the wood. Cover the top of the stack to protect it from rain and snow. I use pallets to elevate my firewood stacks and tarps to cover them.

4. Case Study: My Firewood Budget

Let’s take a look at my firewood budget for the past year:

• Chainsaw (Stihl MS 170): Purchased second-hand for $150
• Safety Gear: $120 (helmet, chaps, gloves)
• Tools and Accessories: $80 (chainsaw file, bar oil, fuel can)
• Fuel: $50
• Bar Oil: $40
• Chain Sharpening: $20 (I sharpen my own chains, but I factor in the cost of the files)
• Chain Replacement: $30
• Air Filter and Spark Plug Replacement: $15
• Firewood Sourcing: Free (sourced from local tree removal services)
• Log Splitter (Rental): $100 (rented for two weekends)

Total Firewood Budget: $605

I was able to heat my home for the entire winter with the firewood I processed, saving me hundreds of dollars in heating costs.

5. Cost Optimization Tips

• Shop Around: Compare prices on chainsaws, safety gear, fuel, oil, and firewood.
• Buy in Bulk: Purchase fuel, oil, and other supplies in bulk to save money.
• Maintain Your Equipment: Perform regular maintenance to prevent costly repairs.
• Learn New Skills: Learn how to sharpen your chainsaw chain, fell trees, and split wood.
• Source Firewood Wisely: Look for free or low-cost sources of firewood.
• Rent Equipment: Consider renting equipment that you only need for a short period of time.
• Season Your Firewood: Properly seasoned firewood burns more efficiently and produces more heat.

6. The Value of Time and Labor

While we’ve focused on the tangible costs, it’s crucial to consider the value of your time. Harvesting and processing firewood is labor-intensive. Ask yourself:

• What is your time worth? If you can earn more money working at your regular job than you save by processing firewood, it might be more cost-effective to purchase firewood.
• Do you enjoy the process? For some, the physical labor is a rewarding experience. For others, it’s a chore.
• What are the opportunity costs? What else could you be doing with your time?

I personally find a lot of satisfaction in the process of transforming raw logs into a neatly stacked pile of firewood. It’s a great way to get exercise, spend time outdoors, and connect with nature. However, I also recognize that it’s not for everyone.

7. Regional Variations in Costs

It’s important to note that firewood costs can vary significantly depending on your location. Factors that can affect firewood prices include:

• Wood Availability: Areas with abundant forests tend to have lower firewood prices.
• Demand: Areas with cold winters and high heating costs tend to have higher firewood prices.
• Transportation Costs: Firewood prices can be higher in areas that are far from wood sources.
• Regulations: Some areas have regulations that restrict firewood harvesting or transportation.

Data Point: According to the U.S. Energy Information Administration (EIA), heating costs vary significantly by region. In the Northeast, heating oil is the most common heating fuel, while in the South, natural gas is more common.

Actionable Tip: Research firewood prices in your area to get a better understanding of the local market. Contact local firewood suppliers, tree removal services, and government agencies for information on firewood regulations.

Final Thoughts: A Budget-Conscious Approach to Firewood

Starting and maintaining a Stihl MS 170 chainsaw, along with preparing firewood, requires a thoughtful approach to budgeting. By understanding the initial investment, ongoing costs, and the value of your time, you can make informed decisions that will save you money and ensure a successful and enjoyable firewood experience. Remember to prioritize safety, maintain your equipment, and source firewood wisely. And don’t forget to factor in the satisfaction of a warm fire on a cold winter’s night – that’s a priceless benefit that can’t be measured in dollars and cents.

Ultimately, whether you choose to purchase firewood or harvest it yourself, the key is to be prepared, informed, and budget-conscious. With a little planning and effort, you can enjoy the warmth and comfort of a wood-burning fire without breaking the bank. Now, get out there, get that saw started, and get those logs split! Just remember to be safe, and have fun!

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