How to Change the Coolant in a 1986 Suzuki DR200
Shop parts for a 1986 Suzuki DR200 Dirt Bike.
Routine maintenance is the backbone of keeping your classic 1986 Suzuki DR200 performing its best, and changing the coolant is an essential part of that care. Here's an exclusive MotoSport guide to getting your DR200's cooling system refreshed and reliable.
What Makes the 1986 Suzuki DR200 Unique?
The 1986 DR200 is a beloved air- and oil-cooled dual-sport, prized for its rugged simplicity and reliability. While it lacks the radiator of modern liquid-cooled machines, it features a cooling system with coolant for the cylinder head and engine, which needs periodic replacement to prevent corrosion and overheating. Always check your owner's manual for specifics, but the core steps below apply to this MMY dirt bike.
Supplies You'll Need
- Fresh, motorcycle-specific coolant (never use plain water or car coolant)
- Drain pan to catch old coolant
- Rags and safety gloves
- Socket or wrench set
- Funnel
- New sealing washer for the drain bolt (recommended)
Step-by-Step Coolant Change on Your DR200
- Let the Engine Cool: Make sure the bike is completely cool before you start. Working on a hot system can cause burns and pressurized coolant spray.
- Remove Cover and Locate the Radiator Cap: Take off the radiator guard or cover with the appropriate tool if equipped. Slowly remove the radiator cap to relieve any residual pressure. On the DR200, the cap is typically on the right side near the cylinder head. Inspect the cap for contamination.
- Find and Remove the Drain Bolt: Locate the coolant drain bolt, usually found low on the engine case or at the base of the cylinder. Place your drain pan beneath and carefully loosen the bolt, allowing all old coolant to empty. Replace the sealing washer if possible for the best leak prevention.
- Flush (Optional but Recommended): If the coolant appears rusty or contaminated, flush the system with distilled water and repeat the drainage process.
- Reinstall the Drain Bolt: Once drained, securely reinstall the drain bolt (with a fresh washer if available) before refilling.
- Add Fresh Coolant: Using your funnel, pour new coolant slowly into the radiator or fill opening, being careful to avoid air bubbles. Fill up to the recommended level, typically to the neck of the fill port.
- Top Up the Overflow Reservoir: Fill the expansion/overflow tank to its upper mark if equipped.
- Bleed Air from the System: Start the bike and let it idle for a couple of minutes, then gently rev to help move any trapped air out of the system. Shut it off and let it cool completely.
- Double-Check Levels: Once cool, remove the cap and check the level again. Top off if needed.
- Inspect for Leaks & Ride: Confirm everything is dry and tight. Watch the fluid level over your next few rides to ensure stability.
Pro Tips for DR200 Owners
- The DR200's robust air/oil-cooling makes overheat unlikely, but never run low on coolantit prevents internal corrosion as well as cooling the cylinder head.
- Coolant should be changed every two years or 4,000 miles, or more frequently if you ride in extreme conditions.
- If you notice persistent coolant loss, cracks in hoses, or overheating, check related components at once.
A well-maintained cooling system will keep your 1986 DR200 on the trails for years to come. Enjoy the ride.
Related Shopping Categories
Shop Radiators for a 1986 Suzuki DR200 Dirt Bike.
Shop Coolant for a 1986 Suzuki DR200 Dirt Bike.
Shop Temperature Sensors for a 1986 Suzuki DR200 Dirt Bike.
Shop Tools for a 1986 Suzuki DR200 Dirt Bike.
Shop Radiator Hoses for a 1986 Suzuki DR200 Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.