Choosing the Right Spark Plug for Your 1993-2000 Husaberg FC600
The right spark plug is critical for taming your big-bore thumper and keeping it starting and running strong.
- The correct spark plug for most 1993-2000 FC600 models is an NGK CR8E or its iridium equivalent, the CR8EIX.
- Upgrading to an iridium plug from NGK or Denso is highly recommended for easier starting and smoother performance.
- Always check the spark plug gap before installation, even on pre-gapped plugs.
- No recalls or Technical Service Bulletins (TSBs) exist for spark plugs on this vehicle.
Symptoms of a Failing Spark Plug
A worn or incorrect spark plug can cause a range of problems on your FC600. These old-school big-bore bikes are known for being sensitive to their ignition components. If you notice any of these signs, your spark plug is one of the first and easiest things to check.
- Hard Starting: A weak spark makes it much harder to kick-start the engine, whether it's hot or cold.
- Engine Misfires: You might feel the engine stumble or hesitate, especially under acceleration. This can feel like a quick loss of power.
- Rough Idling: An inconsistent spark can make the bike idle poorly or stall unexpectedly.
- Reduced Power: If the plug isn't firing efficiently, you'll lose horsepower and throttle response.
- Backfiring: Unburnt fuel can ignite in the exhaust, causing a loud pop or bang, which can be a sign of a failing plug.
Watch for Fouling
When you remove the old plug, look at its tip. If it's black and sooty, your bike may be running too rich. If it's white or blistered, it could be running too lean or hot. A light brown or tan color is ideal.
Choosing Your Aftermarket Spark Plug
For the 1993-2000 Husaberg FC600, the original equipment (OEM) plug was typically a high-quality NGK. This means that buying a top-tier aftermarket plug from a brand like NGK or Denso is not a downgrade; you are essentially getting OEM quality. The key is choosing the correct part number and type for your needs.
Brand & Material Tiers
Standard (Nickel/Copper): These are the basic, most affordable plugs. Brands like Champion and standard NGK plugs fall into this category. They work well but have the shortest lifespan. For the FC600, a standard NGK CR8E is a common choice.
Iridium: Iridium plugs are the top-tier option and are highly recommended for performance bikes like the FC600. They have a very fine center electrode that creates a more focused, powerful spark. This leads to easier starting, smoother running, and better throttle response. They also last much longer than standard plugs. The most common iridium options for your bike are the NGK CR8EIX and the Denso Iridium Power IU24.
Pro Tip: Iridium is Worth It
While iridium plugs cost more upfront, owners consistently report that they improve starting and running performance on these sometimes-finicky engines. Given the relatively low cost of a spark plug, the upgrade to an NGK or Denso Iridium is a smart investment for your FC600.
Aftermarket Spark Plug Cost for 1993-2000 Husaberg FC600
| Tier | Brand(s) | Estimated Price |
|---|---|---|
| Good (Standard) | Champion, NGK (Standard) | $6.73 - $10.00 |
| Better/Best (Iridium) | NGK, Denso | $10.00 - $17.05 |
Frequently Asked Questions
How often should I replace the spark plug on my FC600?
For a high-performance dirt bike, it's good practice to inspect the plug every 10-15 hours of riding and replace it every 20-30 hours, or once a season, even if it seems fine. Iridium plugs can last longer, but given the low cost, frequent changes are cheap insurance against being stranded.
What is a spark plug 'heat range'?
The heat range (the number in the part number, like the '8' in CR8E) tells you how quickly the plug transfers heat away from its tip. A 'hotter' plug (lower number) burns off deposits better at low speeds, while a 'colder' plug (higher number) is needed for high-speed, high-load riding to prevent overheating. For most riders, the stock '8' heat range is correct. Only change the heat range if you have specific tuning issues like constant fouling.
Do I need to gap my new spark plug?
Yes, you should always check the gap. Most plugs for these bikes, like the NGK CR8EIX, come pre-gapped, but it's crucial to verify it with a feeler gauge before installation. The correct gap ensures the strongest spark. An incorrect gap can cause misfires and hard starting.
What tools do I need to change the spark plug?
You will need a spark plug socket that fits the plug (usually 16mm or 5/8"), a ratchet with an extension, and a torque wrench to ensure you don't over-tighten the new plug. You will also need a feeler gauge to check the gap.
Technical Specifications
OEM Part Numbers: CR8E C8E
Thread Size: 10mm, Hex Size: 16mm (5/8"), Reach: 19mm (3/4"). The most common part numbers are NGK CR8E (standard), NGK CR8EIX (iridium), and Denso IU24 (iridium).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Husaberg FC600: