S.T. Dupont lighters are more than just fire starters—they are mechanical works of art. Whether you own a classic Ligne 1, a Ligne 2 with that iconic “cling,” or the timeless Gatsby, proper care and maintenance are essential to ensure long-term performance and preserve value.
This guide will walk you through the essentials of maintaining your flint-based S.T. Dupont lighter, from safe refueling to professional servicing.
S.T. Dupont lighters are masterpieces of precision, crafted with delicate mechanisms and luxurious materials. Yet even the finest lighter can lose its brilliance without proper care. Routine maintenance not only ensures reliable performance, but also preserves the beauty and long-term value of your piece.
Because refueling, replacing flints, and adjusting flame height can vary by model, we’ve created detailed, model-specific instructions for every S.T. Dupont lighter we offer:
• Urban
• Ligne D
| Model | Refill Color |
|---|---|
| Ligne 1 BS (Small) | GOLD |
| Ligne 1 BS (Regular) | RED |
Always consult the cap color dot under your refill screw (e.g., red, gold) to confirm the correct gas type.
💡 Tip: Never overfill. If liquid gas leaks or spits, you’ve gone too far.
If your lighter stops sparking, the flint may be worn down — or stuck due to age, dust, or residue.
Unlike later models, the S.T. Dupont Ligne 1 BS does not have a dedicated flame adjustment screw or wheel. However, it is still possible to adjust the flame height with care.
⚠️ Note: Flame adjustment on a Ligne 1 BS is not recommended unless you have experience. Improper handling may damage the gas valve or ignition system.
| Model | Refill Color |
|---|---|
| Ligne 1 BR (Small / BRP) | GOLD |
| Ligne 1 BR (Regular / BRG) | RED |
| Soubreny | BLUE |
Always check the cap color dot under your refill screw to confirm the correct refill gas.
💡 Tip: If you hear gas leaking after filling or see liquid gas, you've likely overfilled it. Stop immediately and allow it to vent.
If your lighter no longer sparks or the wheel turns too easily, it’s time to replace the flint.
The Ligne 1 BR features an integrated flame height regulator located on the latch (cap).
⚠️ Note: Never force the wheel if it resists. If the flame remains low or unstable, the valve may need servicing.
| Model | Refill Color |
|---|---|
| Ligne 2 (Large / PNG) | GOLD |
| Ligne 2 (Small / PNP) | GREEN |
| Gatsby | GREEN |
Check the colored dot under the refill cap to confirm compatibility. Using the wrong gas type can damage the internal valve.
💡 Tip: Do not remove the flame adjustment screw. It is not a cap. Only the refill cap should be unscrewed.
If the roller no longer produces a spark or spins without resistance, the flint is likely depleted or stuck.
These models have a built-in flame adjustment screw marked with “+” and “–” arrows on the bottom of the lighter.
⚠️ Note: To be clear you do not need a screwdriver. Removing the small screw in the middel of the adjustment with a screwdriver is dangerous when the lighter is filled can damage the flame control system.
| Model | Refill Color |
|---|---|
| Urban | BLUE |
The S.T. Dupont Urban uses a standard blue butane refill. Always verify the refill type based on the valve dot under the lighter, and use official Dupont gas to avoid clogging or valve wear.
💡 Tip: Do not overfill. If gas leaks or sputters after filling, stop immediately and allow the lighter to vent before use.
If the ignition roller spins freely or produces no spark, it’s time to replace the flint.
⚠️ Warning: Avoid generic flints, as improper sizing can cause jamming or uneven spark wear.
The Urban lighter features a unique flame adjustment mechanism—a slider located on the back of the lighter.
| Model | Refill Color |
|---|---|
| Ligne D (Lady / Ligne D Small) | BLUE |
The Ligne D uses the blue S.T. Dupont gas refill. Always verify your refill type by checking the dot color beneath the refill cap. Only use official Dupont refills to maintain valve integrity.
If the lighter stops sparking or the ignition roller turns without resistance, it's likely time to replace the flint.
The flame height on the Ligne D is adjusted via a dedicated screw on the base, typically marked with “+” and “–” arrows.
⚠️ Note: To be clear you do not need a screwdriver. Removing the small screw in the middel of the adjustment with a screwdriver is dangerous when the lighter is filled can damage the flame control system.
Proper care isn’t just about functionality — it’s about preserving the soul of your lighter. Whether you own a classic Ligne 1, a sleek Ligne 2, or a more refined model like the Urban or Ligne D, regular maintenance ensures your Dupont performs just as beautifully as the day it was made.
From refueling and flint changes to precise flame adjustment, each model requires its own approach. That’s why we’ve provided tailored instructions for every lighter we offer — because attention to detail matters.
If you’re unsure about any step, or if your lighter needs more than basic care, we’re happy to help. At The Lighterhouse, every lighter we sell is guaranteed 100% authentic, tested, and restored with expert precision.
Have a question about your Dupont? Contact us — we’ll guide you.
Boutique of vintage luxury lighters since 2020. From Historic relics to precious metals, The Lighterhouse offers a vast and always-changing collection of the most exquisite lighters. We are pleased to help you find your next treasure, here at The Lighterhouse.
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