Farmertec Holzfforma G660 Saw (Buyer’s Guide)
The Holzfforma G660 is a roughly 92 cc saw sold in professional-style configurations, but its parts and setup are not guaranteed to match a Stihl MS 660. Before buying, verify the seller, serial and model markings, manual, bar mount, sprocket, chain, and service support. Buy it only if you can confirm the exact configuration and safely manage a large saw.
A G660 buyer is choosing more than engine size. The real decision is whether this saw, as supplied, fits the work, the operator’s skill, and the local parts and repair network. A low purchase price can lose its appeal if the saw arrives with unclear specifications or if no one nearby will service it.
I would also treat the work area as part of the purchase decision. If you cut near a home, keep pets, children, and bystanders well away from the saw and planned work zone. A powerful saw does not make a difficult tree safe to fell. Training, sound judgment, and a clear plan matter more than a product label.
What the Holzfforma G660 Is, and What It Is Not
The G660 is commonly listed at about 92 cc and is sold under the Holzfforma name by Farmertec. Retail listings may describe it as a clone-style saw or compare it with the Stihl MS 660. Such comparisons do not prove that every component, production run, or service procedure is the same.
Retailers commonly advertise output around 5.2 kW. Treat that as a seller or manufacturer claim, not an independently verified measure of every saw’s power. Parts and setup can vary by package, so check the saw in front of you rather than buying from a model name alone.
Most important, do not assume that an MS 660 manual or parts listing applies to a G660. The G660 is not an OEM Stihl MS 660, and similar appearance does not confirm part fit. Verify the manual supplied for the actual saw and its installed components before using it or ordering replacements.
Decide Whether the G660 Fits Your Work
The G660 may suit demanding ground-based bucking or felling when the operator is trained and the saw’s configuration matches the job. Displacement alone does not show that it is the right tool. Tree size, defects, lean, site conditions, bar length, chain setup, and operator experience all affect the choice.
A long bar can reach farther, but it also increases cutting load and exposure to kickback. Use the shortest bar that safely suits the work. If you are new to chainsaws, uncertain about felling, or working around hazards, a large saw is not a shortcut to better results.
| Your situation | What to weigh | Buying direction |
|---|---|---|
| Occasional homeowner cutting | Weight, ease of control, local service, and workload | Compare smaller saws and local support before choosing a large-displacement model |
| Frequent, demanding bucking | Parts access, exact setup, operator skill, and workload | Consider the G660 only after verifying its package and service path |
| Felling trees with defects, heavy lean, or nearby hazards | Risk and the need for experienced help | Do not choose a saw as a substitute for a trained sawyer |
| Buyer comparing a G660 with a used MS 660 | Condition, identity, parts, documentation, and repair options | Inspect each saw on its own merits; do not assume parts interchange |
Brand tiers also need careful reading. A “pro” label on a listing does not establish that a particular saw has the same design, quality control, warranty, or dealer support as an established professional line. Compare the actual model, written terms, and service options, not just engine size or appearance.
Verify the Saw, Seller, and Parts Before Buying
A serial number is useful evidence, but it is not a guarantee of origin. I would use it as one part of a check: ask the seller for a clear photo of the identification plate, the exact model marking, the supplied manual, and a written list of included parts. Then confirm those details with the seller or manufacturer before paying.
Be cautious if a seller cannot explain what is included, uses unclear photos, or promises OEM interchangeability without part numbers or fit evidence. A genuine-looking plate alone cannot settle whether a saw is counterfeit, misidentified, altered, or supported. Keep the invoice and written product description.
Before ordering a bar or chain, check all of these on the actual saw:
- Bar mount: The mounting pattern must match the saw.
- Pitch: Common G660 packages use 3/8-inch pitch, but verify the sprocket and chain.
- Gauge: Some packages use .063-inch gauge; check the bar stamp and chain specification.
- Drive-link count: Count the chain’s drive links for the chosen bar.
- Sprocket: Confirm its pitch and condition.
- Manual and model plate: Make sure the document and saw identification agree.
| Item to verify | What to inspect | Why it matters |
|---|---|---|
| Model and serial markings | Legible plate and consistent seller records | Helps identify the specific saw, but does not prove origin by itself |
| Included documentation | Manual for that saw and configuration | Fuel, starting, tuning, and service instructions may differ |
| Bar and chain | Bar stamp, pitch, gauge, drive-link count | Mismatched parts can cause poor fit or unsafe operation |
| Dealer or repair support | Written warranty terms and local willingness to service it | A low price matters less if repairs and parts are hard to obtain |
If the seller claims the saw is a Stihl, or that all MS 660 parts fit, pause and verify. Ask for specific part numbers and confirmation from a knowledgeable supplier. A model resemblance is not enough.
Equipment Setup, Compatibility Checks & Safety Preparation
Setup means confirming that the saw is complete, correctly matched, and safe before starting it. Inspect the identification plate, manual, bar, chain, sprocket, and controls together. Do not rely on generic internet settings for fuel mix, idle speed, full-throttle speed, or oil flow when the exact manual and installed components are available.
Wear chainsaw-rated leg protection, a helmet with eye and face protection, hearing protection, gloves, and boots with suitable traction. Inspect the chain brake, throttle lockout, stop switch, chain catcher, handles, chain tension, bar rails, fasteners, and visible fuel or oil leaks. Clear people, pets, and obstacles from the work area.
Mix fresh fuel using the oil type and ratio specified in the manual supplied with that saw. There is no universal ratio that can safely be assumed for every G660 version. Do not use straight gasoline, guess a ratio, or change it for break-in unless the manufacturer gives written instructions. Fill the separate reservoir with suitable bar-and-chain oil.
Start on stable ground, follow the manual’s cold- or warm-start steps, engage the chain brake, and keep the bar clear. At idle, the chain must stop. Check that the saw delivers bar oil by observing oil delivery and the chain and bar condition. If the chain moves at idle, the brake fails, or lubrication is absent, stop and repair the saw before cutting.
Field Cutting and Landscaping Operation
Operation means cutting only within the operator’s training and the saw’s verified setup. Keep a firm two-handed grip, secure footing, and a clear escape path. Keep the bar tip away from wood, the ground, and obstructions; contact with the upper tip area can cause rotational kickback, which can throw the bar toward the operator.
For bucking, plan cuts around compression and tension in the wood. If the chain binds, the saw behaves unexpectedly, or the cut does not follow the plan, stop and reassess. Do not force a dull or mismatched chain through wood. A dull chain can increase heat and binding risk, while poor fit can contribute to derailment and loss of control.
Before felling, assess tree lean, wind, defects, escape routes, and people or property nearby. Use a trained sawyer and a planned directional notch and hinge suited to the tree and conditions. There is no generic hinge measurement that fits every tree. Stop and get qualified help for a hung tree, signs of barber-chair risk, or any uncertain felling condition.
ANSI Z133 provides safety practices for arboricultural operations. OSHA 1910.266 applies to covered logging operations; it does not automatically govern every landscaping job. Check the rules that apply to the work and location.
Maintenance, Chain Sharpening & Carburetor Service
Maintenance means checking wear and function before small problems lead to unsafe cutting or engine damage. After the saw cools, inspect chain tension, cutters, bar rails, sprocket, fasteners, and visible leaks. Clean chips from the cover and cooling areas, and refill bar oil as needed. Follow the saw’s own manual for service intervals and procedures.
A sharp chain cuts cleanly without being forced. If it pulls to one side, makes fine dust instead of chips, or needs pressure to cut, stop and inspect it. Sharpen or replace it using the chain maker’s specifications. Check the bar and chain together; do not install a chain just because its pitch looks right.
Carburetor settings and safe engine speeds depend on the specific saw and setup. Do not apply generic RPM figures or tune by sound alone. Have a qualified technician check and adjust the carburetor with a tachometer using model-specific service data. Elevation, fuel, bar length, and other factors can affect tuning and oil delivery.
Storage and Seasonal Care
Storage means protecting the saw and its fuel system while keeping it ready for a safe return to service. Follow the manual’s instructions for fuel handling and storage, rather than assuming that one method suits every version. Keep the saw in a secure, dry place, away from children, pets, and ignition sources.
After use, engage the brake, shut down, and let the saw cool before refueling or servicing. Refuel away from ignition sources and follow the manual’s hot-engine precautions. Check chain condition and tension after cooling, clean the saw, and inspect for damage before the next use.
Buyer Scenarios and Final Decision
These scenarios show how I would apply the checks without treating a product listing as proof of fit or quality. They are decision examples, not reports of specific buyers or test results. The same rule applies in each case: verify the exact saw and support before committing.
- A low-priced listing with no manual or clear photos: Ask for the serial/model plate, actual bar and chain markings, written warranty, and manual. If the seller cannot provide them, the unknowns may outweigh the savings.
- A G660 offered as an MS 660 equivalent: Request exact part numbers for claimed interchangeable parts. Confirm with a supplier familiar with both models; do not buy on appearance or a broad “fits” claim.
- A buyer with a trusted local shop: Ask whether the shop will service this exact model and source its parts. A dealer network is valuable only if it will support the saw you own.
- A buyer planning to fell difficult trees: Prioritize training and qualified help. Choosing a more powerful saw does not resolve lean, defects, entanglement, or nearby hazards.
The practical choice is not simply G660 versus Stihl or Husqvarna. It is the exact saw and package versus the work you need done, the skills available, and the service network you can reach. If those details remain unclear, wait rather than gamble on a label.
Frequently Asked Questions
These answers focus on the checks that matter before purchase and first use. For model-specific settings, the manual supplied with the exact saw takes priority over general advice. If the saw’s identity or condition is uncertain, ask the seller or a qualified technician before operating it.
Is the Holzfforma G660 the same saw as a Stihl MS 660?
No. Do not assume it is an OEM Stihl saw or that every part and service instruction is interchangeable.
How large is the G660 engine?
It is commonly listed at about 92 cc. Confirm the model marking and documentation for the particular saw.
How much power does it make?
Retailers commonly advertise about 5.2 kW. Treat that as a claim, not an independently verified output for every unit.
What fuel ratio should I use?
Use the ratio and oil type stated in the manual supplied with your G660. Do not guess or copy a ratio from another model.
What bar and chain fit a G660?
Check the actual bar mount, sprocket pitch, chain pitch, gauge, and drive-link count. Common packages use 3/8-inch pitch and .063-inch gauge, but verify before ordering.
Can a serial number prove that a G660 is genuine?
No. Use the number with the model plate, seller records, manual, invoice, and manufacturer or seller confirmation. A number alone does not prove origin or condition.
Is the G660 suitable for a homeowner?
That depends on the work, training, and ability to manage a large saw. For occasional light work, compare easier-to-handle options and local service before deciding.
Can I use generic MS 660 carburetor or idle settings?
No. Use model-specific service information. A qualified technician should tune the saw with a tachometer.
What should I check before the first cut?
Inspect safety controls, fasteners, chain tension, bar and chain fit, leaks, and oil delivery. Stop if the brake fails, the chain moves at idle, or lubrication is absent.
When should I avoid felling with the G660?
Do not proceed if you lack training, cannot plan a safe escape route, or face a hung tree, barber-chair risk, or uncertain conditions. Get qualified help instead.
(This article was written by one of our staff writers, Elliott Fowler. Visit our Meet the Team page.)
