Poulan Pro PR4016 Chainsaw (Field Test)
The Poulan Pro PR4016 is a 40 cc, two-cycle saw supplied with a nominal 16-inch bar. Its setup points are clear: mix fresh fuel at 40:1, use bar oil, and verify the chain’s pitch, gauge, and drive-link count before fitting. It suits careful ground-level work, but I can’t confirm cutting speed or reliability without instrumented testing.
The “aha” with a chainsaw is that engine size and bar length do not tell the whole story. A saw can have a useful size on paper and still be a poor match if its chain is wrong, its maintenance is neglected, or the job exceeds the operator’s skill.
I assess the PR4016 here as a field-use guide, not a report of timed cuts or vibration readings. I have not verified those measurements for this exact saw, so I won’t invent them. Instead, this guide separates known specifications from checks you can make before, during, and after a job.
Equipment Setup and Safety Preparation
This section covers the PR4016’s known setup details and the checks to make before starting. The stated engine size is 40 cc, with air cooling and a two-cycle design. The nominal bar is 16 inches. Confirm the exact instructions on your saw and in its manual, since parts and configurations can vary.
Confirm fuel, bar, and chain
A 40:1 fuel mix means 40 parts gasoline to one part two-cycle oil. For one US gallon of gasoline, that is 3.2 US fluid ounces of oil. Use fresh fuel and the oil grade specified in the manual. Measure carefully; do not estimate the amount by eye.
The common 16-inch replacement-chain configuration is 3/8-inch low-profile pitch, .050-inch gauge, and 56 drive links. Oregon S56 is a matching example only when all three values agree with the installed bar. Read the bar markings and check the manual before buying or fitting a chain.
- Pitch is the spacing between chain drive links and cutters.
- Gauge is the thickness of the drive links that sit in the bar groove.
- Drive-link count is the number of links that travel around the bar.
A chain that matches only one or two of these measurements is not a safe substitute. Bar and chain variants exist, so don’t rely on the model name or bar length alone.
Check the saw and work area
Before starting, wear a helmet, eye and face protection, hearing protection, chainsaw-resistant leg protection, gloves, and boots. Check the chain brake, throttle lockout, chain catcher, controls, chain condition, and chain tension. Inspect fuel-cap seals and fill the bar-oil tank with bar-and-chain oil.
Clear people and obstacles from the work area. Plan an escape route, look for overhead hazards, and assess footing, tree lean, and wood under tension or compression. Follow applicable rules. ANSI Z133 is a relevant safety standard; OSHA 1910.266 applies to covered logging operations, not automatically to every homeowner’s cutting.
Key takeaway: Verify the specific bar and chain, use the correct fuel mix, and do not start until the controls and work area pass inspection.
Field Cutting and Landscaping Operation
This section describes a cautious operating sequence for suitable work. The PR4016’s 16-inch bar and 40 cc engine do not establish a safe maximum tree size or a measured cutting rate. Keep tasks within your training and the saw’s condition, and use another method or a qualified professional when a cut is beyond your control.
Start and check lubrication
Start the saw on stable ground with the chain brake engaged and the bar clear of people and objects. Follow the exact cold- or warm-start steps in the manual. Once running, confirm the chain does not move at idle and check that the brake and chain lubrication work as described by the manufacturer.
There is no reliable model-specific oil-flow figure established here. Use the manual’s check method rather than a guessed rate. If the chain creeps at idle, the brake does not function as directed, or oil is not reaching the chain, stop and fix the problem before cutting.
Cut with the nose clear
Use a sharp, correctly tensioned chain and a stable two-handed grip. Keep the bar nose away from the wood. Rotational kickback can happen if the upper part of the bar nose hits wood or another object. The saw can move toward you too quickly for a reaction, so prevention matters more than relying on the chain brake.
Keep cuts below shoulder height. Plan each cut around the wood’s weight and tension so the bar is less likely to bind. Do not force the saw through a cut. Stop if the chain becomes dull, the bar pinches, footing shifts, or the wood moves in an unexpected way.
Use this saw for ground-level bucking, pruning within safe reach, and small-tree work only when you have the skill and control for that task. Do not climb with it or attempt large-tree felling beyond your training, the saw’s capacity, or the site’s limits.
Job-fit guide
| Work scenario | Fit for the PR4016 | Practical limit |
|---|---|---|
| Bucking manageable wood on the ground | Reasonable when the chain is sharp and the cut is controlled | Plan for binding and support; stop if the wood shifts |
| Pruning within safe reach | Possible for suitable branches | Keep work below shoulder height; do not climb |
| Small-tree work | Only within operator skill and site control | A 16-inch bar is not proof that a tree is safe to fell |
| Large-tree felling or difficult lean | Not a default fit | Use qualified help when the tree or escape path is uncertain |
These are task boundaries, not claims about cutting speed or maximum diameter. A nominal 16-inch bar does not mean every cut of that width is safe or suitable.
Job scenarios, not claimed test results
These examples show how I would screen common jobs; they are not reports of cuts I performed with this saw. That distinction matters because no verified timed-cut, vibration, or fuel-use figures are available here.
- Ground-level firewood: Check the log’s support and tension before cutting. If the chain starts to bind, stop and reassess rather than pushing harder.
- A reachable limb: Work from stable ground and keep the bar nose clear. If the branch is overhead, under load, or beyond safe reach, leave it to someone trained for that work.
- A small tree: Assess lean, nearby hazards, footing, and escape routes first. If the tree’s fall cannot be controlled, do not proceed.
Key takeaway: Match the job to your skill and the site, not just to the 16-inch bar. Stop at the first sign of binding, poor lubrication, or loss of control.
Maintenance, Chain Sharpening, and Carburetor Service
This section focuses on care that affects safe cutting: chain sharpness, tension, lubrication, and clean parts. I do not list a chain angle, raker setting, idle speed, or maximum RPM because no exact PR4016 value is established here. Use the saw manual and the chain maker’s gauge for those settings.
Keep the chain sharp and correctly tensioned
A sharp chain cuts with less need to press on the saw. If it becomes dull, stop and inspect it. Sharpen or replace it before resuming; forcing a dull chain through wood raises effort and can make control harder.
Set tension using the exact manual procedure. A chain that is too loose can leave the bar; one that is too tight can add strain and wear. Recheck it as directed, especially after fitting a chain or working with the saw. Use the chain maker’s filing guide or gauge rather than guessing cutter or depth-gauge settings.
Clean and inspect after use
After shutdown, engage the brake, switch the saw off, and let it cool. Clean debris from the sprocket cover, bar groove, oil ports, and air filter as the manual directs. Check the bar and chain for damage, and confirm the chain can move as specified when the brake is released.
Carburetor adjustments affect how the engine runs. Do not guess at adjustment settings or use an unverified RPM limit. Follow the exact manual, and have a qualified service provider inspect a saw that will not idle or run correctly after basic checks.
Key takeaway: Sharpen by the chain maker’s guidance, clean the oil path, and leave carburetor settings to the exact service instructions.
Storage and Seasonal Care
This section covers safe shutdown, cooling, and storage between jobs. Fuel handling and storage instructions can differ by manual and local rules, so use the directions for your exact saw and fuel. Keep the bar covered and the saw out of reach of children.
After a cut, engage the brake and switch off the engine. Let the saw cool before refueling. Clean the parts listed above, inspect the chain, and recheck tension after the saw cools. Fit the bar scabbard before transport or storage.
For longer storage, follow the manual’s instructions for fuel and preparation. Do not assume that one storage method suits every fuel blend or storage period. Store fuel in an approved container, away from ignition sources, and follow its label.
Key takeaway: Cool, clean, inspect, and cover the saw; use the manual’s fuel-storage steps rather than improvising.
Verdict: Who Should Consider This Saw?
The PR4016’s verified headline specifications are a 40 cc, air-cooled, two-cycle engine and a nominal 16-inch bar. Those numbers describe the basic package, but they do not prove cutting speed, long-term reliability, or comfort. I would not use them alone to justify a purchase.
It may suit a buyer seeking a gas saw for controlled ground-level work who is willing to mix fuel correctly, maintain the chain, and verify replacement parts. It is a less suitable choice for someone who needs measured performance evidence, plans large-tree work, or expects the saw to handle poor maintenance without issue.
Before buying, confirm the manual for the exact unit, the chain and bar markings, warranty terms, and local access to service and replacement parts. Compare those facts with your workload and budget. If the seller cannot confirm the exact chain configuration or support details, pause before spending.
Key takeaway: Buy based on the exact saw configuration and support available, not on an unverified performance claim.
Frequently asked questions
What engine size is the Poulan Pro PR4016?
It has a 40 cc, air-cooled, two-cycle engine.
What is the PR4016’s nominal bar length?
The nominal guide-bar length is 16 inches. Check the installed bar and manual to confirm the exact configuration.
What fuel mix does the PR4016 use?
The specified ratio is 40:1 gasoline to two-cycle oil. That equals 3.2 US fluid ounces of oil per US gallon of gasoline. Use the oil grade listed in the manual.
Which replacement chain fits a common 16-inch setup?
A common configuration is 3/8-inch low-profile pitch, .050-inch gauge, and 56 drive links. Oregon S56 is an equivalent only when the bar markings confirm all three values.
Can I use any 16-inch chain?
No. Bar length alone does not establish fit. Match pitch, gauge, and drive-link count to the installed bar and exact manual.
What oil goes in the chain-oil tank?
Use bar-and-chain oil. Follow the manual for the fill and lubrication check; no verified model-specific flow rate is given here.
Is this saw suitable for large-tree felling?
This guide does not recommend it for large-tree felling. Tree size, lean, hazards, operator training, and site control all matter; use qualified help when the fall cannot be managed safely.
What should I do if the chain moves at idle?
Stop using the saw and correct the fault according to the manual. Do not continue cutting while the chain creeps at idle.
How should I respond to a dull chain?
Stop, inspect it, then sharpen it with the chain maker’s guide or replace it. Do not force a dull chain through wood.
Can I rely on the chain brake to prevent kickback injury?
No. Keep the bar nose clear of the work and use a firm two-handed grip. The brake is not a substitute for kickback-avoidance technique.
(This article was written by one of our staff writers, Marcus Thorne. Visit our Meet the Team page.)
