Polaris Dragon 700 Problems

The Polaris Dragon 700, released in the mid-2000s, promised a thrilling ride with its powerful engine and aggressive styling. However, like many snowmobiles, the Dragon 700 wasn't without its quirks. Owners quickly discovered a range of issues, from frustrating engine problems to chassis and suspension concerns, making ownership a sometimes challenging experience. Let's dive into the most common problems encountered with the Polaris Dragon 700 and explore potential solutions.

The Dragon's Fire: Engine Issues and What to Do About Them

The heart of the Dragon 700, its 700cc Liberty twin engine, was a source of both excitement and frustration. While capable of delivering impressive power, it was also prone to a few reliability gremlins.

The Dreaded Detonation: One of the most frequently reported issues was detonation, also known as "pinging." Detonation occurs when the air-fuel mixture in the cylinder ignites prematurely, causing a knocking sound and potentially damaging the engine. Several factors could contribute to detonation in the Dragon 700:

Lean Fuel Mixture: A lean mixture (too much air, not enough fuel) raises combustion temperatures, increasing the likelihood of detonation. This could be caused by clogged fuel injectors, a malfunctioning fuel pump, or air leaks in the intake system. Checking and cleaning the fuel injectors regularly, replacing the fuel filter, and inspecting the intake boots for cracks are crucial preventative measures.
Poor Fuel Quality: Using low-octane fuel or fuel that has degraded over time can also lead to detonation. Always use the recommended fuel octane rating (typically premium) and avoid using old or stale fuel.
Incorrect Timing: Improper ignition timing can also contribute to detonation. This is less common but should be checked if other causes have been ruled out.
Overheating: Running the engine too hot will also cause detonation. Ensure the cooling system is functioning correctly, including the thermostat, coolant level, and heat exchangers.

Crankshaft Woes: Another common ailment was crankshaft failure, particularly on earlier models. The crankshaft is a critical component that converts the reciprocating motion of the pistons into rotational power. If it fails, the engine is essentially done for. Contributing factors often included:

Insufficient Lubrication: Adequate lubrication is vital for crankshaft longevity. Using the correct oil type and ensuring the oil injection system is functioning correctly are essential. Many owners chose to pre-mix fuel and oil to ensure proper lubrication.
High Mileage/Aggressive Riding: High mileage and aggressive riding styles put additional stress on the crankshaft, increasing the risk of failure. Regular maintenance and careful operation can help extend its lifespan.
Manufacturing Defects: While less common, some early Dragon 700 engines may have had crankshafts with manufacturing defects.

The Stator Saga: The stator, responsible for generating electrical power for the ignition system and other components, was another area of concern. A failing stator could lead to:

Poor Performance: Reduced engine power and misfires.
Starting Problems: Difficulty starting the engine, or the engine not starting at all.
Electrical Issues: Problems with the lights, gauges, or other electrical components.

Regularly checking the stator's output voltage and resistance can help identify potential problems early on.

Chassis and Suspension: Handling the Rough Stuff

While the Dragon 700's engine issues often stole the spotlight, the chassis and suspension also presented some challenges.

Weak Steering Components: The steering system, particularly the tie rod ends and ball joints, were prone to wear and failure, especially under aggressive riding conditions. Regularly inspecting these components for play or damage and replacing them as needed is crucial for safe handling. Upgrading to heavier-duty aftermarket components is a popular solution for riders who frequently encounter rough terrain.

Front Suspension Woes: The front suspension, while generally capable, could suffer from bushing wear and shock absorber problems. Worn bushings can lead to sloppy handling and excessive play in the suspension. Regularly greasing the suspension components and replacing worn bushings can help maintain proper suspension performance. Shock absorbers can also lose their damping ability over time, leading to a bouncy and uncontrolled ride. Rebuilding or replacing the shocks can significantly improve handling and comfort.

Rear Suspension Concerns: The rear suspension, particularly the torsion springs, could sag over time, leading to a loss of ride height and reduced suspension travel. Adjusting or replacing the torsion springs can restore proper ride height and improve suspension performance. Also, check the rear suspension arm bushings for wear and replace as needed.

Electrical Gremlins: When the Lights Go Out

Beyond the stator issues discussed earlier, the Dragon 700 could also suffer from other electrical problems.

Wiring Harness Issues: The wiring harness, especially in areas exposed to vibration and moisture, could develop shorts or breaks. This could lead to a variety of electrical problems, including:

Intermittent Issues: Problems that come and go unpredictably.
Component Failure: Malfunctioning lights, gauges, or other electrical components.
Starting Problems: Difficulty starting the engine.

Carefully inspecting the wiring harness for damage and repairing any shorts or breaks is essential. Using dielectric grease on electrical connections can help prevent corrosion and improve reliability.

Voltage Regulator Problems: The voltage regulator is responsible for maintaining a stable voltage to prevent damage to sensitive electrical components. A failing voltage regulator could lead to overcharging or undercharging the battery, potentially damaging it or other electrical components. Testing the voltage regulator's output voltage is crucial for identifying potential problems.

Preventative Maintenance: The Key to a Happy Dragon

While the Polaris Dragon 700 had its share of problems, many of these issues can be prevented or mitigated through diligent preventative maintenance.

Regular Inspections: Regularly inspect the engine, chassis, suspension, and electrical system for signs of wear, damage, or leaks.
Proper Lubrication: Use the correct oil type and ensure all lubrication points are properly greased.
Fuel System Maintenance: Clean or replace fuel filters regularly and use fresh, high-quality fuel.
Cooling System Maintenance: Check the coolant level and condition regularly and flush the cooling system as needed.
Component Replacement: Replace worn or damaged components promptly to prevent further damage.
Proper Storage: Store the snowmobile properly during the off-season to prevent corrosion and degradation.

Frequently Asked Questions

Why does my Dragon 700 detonate? Detonation can be caused by a lean fuel mixture, poor fuel quality, incorrect timing, or overheating.
How can I prevent crankshaft failure? Use the correct oil, ensure proper lubrication, avoid excessive stress, and perform regular maintenance.
What are the symptoms of a failing stator? Poor performance, starting problems, and electrical issues are common symptoms.
Why are the steering components so weak? The stock components are not designed for aggressive riding. Upgrading to heavier-duty parts is recommended.
How often should I grease the suspension? Grease the suspension components at least once a season, or more frequently if you ride in wet or dusty conditions.

Conclusion

Owning a Polaris Dragon 700 can be an exciting experience, but it's important to be aware of the potential problems and take steps to prevent them. By performing regular maintenance, addressing issues promptly, and understanding the machine's weaknesses, you can keep your Dragon roaring for years to come. Prioritize regular maintenance and inspections to keep your Dragon breathing fire!