Stihl 034 Parts Diagram (Schematic Guide)
A correct 034 parts diagram helps you identify the right assembly and part number before you order or take the saw apart. First match the model and serial range, then check the installed parts against the illustration. The 034 and 034 Super are different versions, and earlier repairs may have changed what is fitted.
The must-have step is matching the saw to the right illustrated parts list before buying anything. A diagram can show where a part belongs, but it cannot confirm that a replacement fits a saw that has been modified. I start with the model marking and serial number, then compare the parts on the machine with the diagram and their markings.
What an 034 parts diagram can tell you
An illustrated parts list groups components into assemblies and uses item numbers to connect each drawing to a parts list. It helps you identify a part and see how nearby pieces relate. It is not an assembly manual, a torque chart, or proof that a part fits every 034.
Look for the parts list that matches the saw’s model and production range. The serial number helps narrow down which version of an assembly applies. If a listing gives a part number or notes a replacement number, check whether that change applies to your serial range.
A parts illustration is most useful when you use it together with the saw itself:
- Find the assembly that matches the area you are checking.
- Match the drawing’s item number to the parts list.
- Compare the listed part number with the part on your saw, if visible.
- Check any notes about serial ranges or replacement part numbers.
- Confirm the part’s fitment with a STIHL dealer or a reliable parts source before ordering.
A schematic helps you identify parts; it does not show every step needed to remove or install them. For repair steps and tightening values, use the applicable service information.
Confirm the saw version before selecting a diagram
The 034 is a legacy professional two-stroke saw with a listed displacement of 56.5 cm³. The 034 Super is a distinct model, not just another name for the 034. Use the model designation and serial range to choose a parts list; do not assume parts are interchangeable because the saws look alike.
Check the model marking on the saw and compare it with the label or record on the parts listing. If the marking is missing or unclear, ask a STIHL dealer or parts supplier to help identify the version from the serial number. Do not rely on a seller’s broad “fits 034” label alone.
| What to verify | Why it matters | What to do |
|---|---|---|
| Model designation | 034 and 034 Super are distinct versions | Match the marking to the parts list |
| Serial range | Some parts and revisions differ by production range | Check the list’s serial notes |
| Existing components | A previous owner may have changed parts | Compare the saw with the illustration |
| Part number or supersession | A replacement number may apply only to certain versions | Confirm the replacement fits your serial range |
In my work, the common trap is ordering by model name alone. A saw may have a replacement carburetor, ignition part, clutch, or sprocket that no longer matches the original illustration. Treat the diagram as a map of the correct version, then verify what is actually installed.
Read the diagram by assembly, not by guesswork
An assembly is a group of parts shown together because they belong to one area of the saw. Start with the problem area, then follow the item numbers to the list. This makes it easier to spot related washers, clips, covers, and fasteners without assuming that a nearby part is included with the main component.
Catalogs may arrange illustrations in different ways. Check the headings and captions in the specific list rather than assuming every 034 diagram uses the same group names or item numbers. A number on the drawing is usually an item reference, not the part number itself.
| Diagram area to locate | Examples of parts to compare | Check before ordering |
|---|---|---|
| Engine and crankcase | Covers, seals, fasteners | Match the model and serial range |
| Carburetor and intake | Carburetor, intake parts, filter pieces | Check markings on the installed carburetor |
| Ignition | Ignition components and related hardware | Confirm the version and listed part number |
| Clutch and drive | Clutch parts, drum, sprocket | Check the installed sprocket and chain setup |
| Guide bar and chain | Bar, chain, tensioning parts | Match bar fit, pitch, gauge, and chain length |
| Handles and safety parts | Handles, brake parts, catcher, controls | Do not use the saw with safety parts missing or faulty |
The drawing can help you notice a missing spacer or clip, but it may not show the order of removal or the correct orientation during assembly. Photograph the area before disassembly, keep small parts in order, and use service instructions for the repair itself.
Check fitment before buying replacement parts
Fitment means that a part matches the saw and the other parts it must work with. The 034 may have a different cutting setup or replacement components than the original one. Confirm what is on the saw, especially around the bar, chain, sprocket, clutch, carburetor, and ignition system.
For the cutting attachment, the bar, chain, and drive sprocket must match as a set. The 034 commonly appears with a 3/8-inch chain pitch, but verify the installed sprocket and chain markings. Chain gauge can be .050 or .063 inch, depending on the setup. Drive-link count must match the bar.
| Item | What to match | Do not assume |
|---|---|---|
| Guide bar | Bar-tail fit and the saw’s approved setup | That displacement alone sets bar length |
| Chain | Pitch, gauge, and drive-link count | That any 3/8-inch chain will fit |
| Drive sprocket | Pitch and compatibility with the fitted chain | That the original sprocket is still installed |
| Carburetor or ignition part | Markings, model version, and serial range | That a visually similar part is interchangeable |
The 034’s 56.5 cm³ displacement does not, by itself, establish a safe bar length or chain choice. Use the applicable STIHL manual, the bar markings, and the installed sprocket to confirm the cutting setup. If the markings are worn off or parts appear mixed, get the combination checked before use.
Use the diagram safely during a repair
A parts diagram supports identification, while safe repair and operation depend on sound parts and the correct procedure. Before taking parts off, stop the engine, let it cool, and follow the manual. Never run the saw with a missing or defective chain brake or another failed safety device.
Before cutting, inspect the chain brake, throttle trigger lockout, stop switch, chain catcher, handles, fasteners, bar rails, and chain tension. Wear chainsaw protective equipment, including head, eye and hearing protection, leg protection, gloves, and protective boots. Keep people clear and plan an escape route where the job requires it.
Two common parts-identification situations
These examples show how to use the diagram; they are not claims about a specific saw or serial range.
Replacing a sprocket: The saw may have a sprocket that differs from the one pictured in the first parts list you find. Check the saw’s model and serial range, inspect the installed sprocket for markings, and verify that its pitch matches the chain. If the setup has been converted or the parts cannot be identified, confirm compatibility before ordering.
Finding a missing fastener or clip: A drawing can show the missing item’s location and its catalog reference. Compare the neighboring pieces with the illustration, then check the parts list for the correct description and any serial notes. Do not substitute a similar-looking fastener without confirming its fit and use.
After any repair, check that parts are secure and controls move as intended. Verify chain tension with the engine stopped. Follow the manual’s starting procedure, and confirm that the chain does not creep at idle. Stop and correct a problem before cutting.
A parts diagram can help locate components that need inspection, but it does not set sharpening angles, carburetor adjustments, oil flow, or tightening values. Use the chain maker’s information for sharpening and depth gauges, and use the applicable STIHL instructions for service settings. Do not guess at adjustments to compensate for a fault.
For a fitted chain, use the file size, filing angle, and depth-gauge setting specified for that chain model. A .025-inch (0.65 mm) depth-gauge setting is common, but it is not universal. Use the matching depth-gauge tool and replace a chain with cracked, damaged, or excessively worn parts.
The fuel mix listed for the 034 is 50:1 with STIHL two-cycle engine oil. Use fresh, correctly mixed fuel and follow the applicable manual’s fuel guidance. Never use straight gasoline in this two-stroke engine. Keep fuel and bar oil separate; check both before starting.
Clean the air filter, cooling fins, bar groove, and oil holes as needed. Inspect the fuel system for leaks. If the saw has abnormal idle, poor lubrication, overheating, or a suspected air leak, stop and have it checked by a qualified service provider rather than adjusting by guesswork. For storage, follow the manual’s fuel-system instructions, clean the saw, protect the bar and chain, and store it dry and out of children’s reach.
FAQ: 034 parts diagrams and fitment
These answers cover the main checks needed to find and use the right parts illustration. The model designation and serial range are the best starting points; the parts already installed provide an important second check, especially if the saw has been repaired or converted.
How do I find the right parts diagram for my STIHL 034?
Match the saw’s model designation and serial number to the illustrated parts list for its production range. Confirm the parts shown against the saw before ordering.
Is the 034 Super the same as the 034?
No. The 034 Super is a distinct variant. Use a parts list that names the correct model and covers the saw’s serial range.
Does a diagram’s item number give me the part number?
Usually, the item number points to a matching entry in the parts list. Read that entry for the part number and any fitment notes.
Can I order a part just because a listing says “fits 034”?
Not safely. Check the model, serial range, part number, and installed component. Ask a dealer or supplier to confirm if those details do not agree.
What chain pitch is common on an 034?
A 3/8-inch pitch is common, but check the installed sprocket and chain markings. The pitch, chain gauge, and drive-link count must suit the bar and sprocket.
Which chain gauge does an 034 use?
Setups may use .050-inch or .063-inch gauge. Read the bar and chain markings and confirm they match; do not choose by model name alone.
Does the diagram show how to assemble a part?
It shows part relationships and locations, but it may not provide a complete repair sequence, orientation details, or tightening values. Use applicable service instructions for assembly.
Can I use the diagram to choose a bar length?
Not by itself. Use the saw’s applicable manual and confirm bar fitment and compatibility with the chain and sprocket. Displacement alone does not establish bar compatibility.
What fuel mix is specified for the 034?
The listed mix is 50:1 with STIHL two-cycle engine oil. Follow the applicable manual and use fresh, correctly mixed fuel.
What should I do if my saw has parts that differ from the diagram?
Check the serial range and identify the installed parts by markings. The saw may have been converted or repaired with alternate components; confirm fitment before ordering or operating.
(This article was written by one of our staff writers, David Hensley. Visit our Meet the Team page.)
