Engine Cam Chain Tensioner Gasket – GD250R GD250N

Description

⚙ Engine Cam Chain Tensioner Gasket – Hyosung GD250R | GD250N (2013–2020)

📦 Package Includes:

• 1x Timing Cam Chain Tensioner Gasket (OEM spec replacement).

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🚚 Delivery Information:

• UK Shipping: 3–4 working days.

• Need it faster? Email us for express delivery options.

• ✈ Worldwide Shipping: Yes – send us an email for an international shipping quote.

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Why You Need This Gasket:

The cam chain tensioner gasket is a small but critical seal in your GD250 engine. It’s required when:

• Replacing or servicing a worn tensioner,

• Doing a top-end rebuild,

• Or when removing the timing chain housing for piston or cylinder base replacement.

These engines are high-revving single-cylinder thumpers, and a proper seal here ensures your engine remains oil-tight and perfectly timed. A leaking or damaged gasket can result in poor timing, potential piston-to-valve contact, and catastrophic engine damage.

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⚠ Important Warning:

Hyosung no longer produces new GD250 pistons or valves, meaning replacement parts are becoming increasingly rare. One mistake during reassembly can bend valves or damage the piston, which could make the bike unrepairable without costly custom machining. If you’re unsure, get advice in the forums or have a professional mechanic help with installation.

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🔧 Rebuild Tips:

• Always check the tensioner spring and mechanism for wear when replacing the gasket.

• Use high-temperature gasket sealer sparingly around the edges if needed (do not block oil passages).

• Verify cam timing alignment marks before reassembling.

• Rotate the engine by hand several times to confirm smooth operation before starting it.

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🏍 Model Compatibility:

• GD250R (2013–2020)

• GD250N (2013–2020)

OEM Ref #: 12837HP7600

💬 Need expert help? Post your rebuild questions on our forums – keeping these rare Hyosungs alive is what we do!