NGK Spark Plug - LKAR9BI-10 - 95371

NGK has been developing spark plug technology since the 1930s and manufacture plugs for every type...

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Product Information

Full details

This guide is for owners of Husqvarna 701 and KTM 1050/1290 motorcycles who want to understand and maintain their NGK LKAR9BI-10 spark plugs (95371). The main benefit is improved engine performance and reliability thanks to this high-quality spark plug. Keep in mind that correct installation and regular checks are essential for optimal results.

All features

Model Part Number	95371
Brand	NGK

Extended Product Information

FAQs

How often should I replace the spark plug?

It is recommended to replace the spark plug according to your motorcycle's maintenance schedule, or sooner if performance issues arise. Typically every 10,000 to 20,000 miles, but refer to your owner's manual.

What tools do I need to install this spark plug?

You will need a spark plug socket, a torque wrench (recommended), a feeler gauge, and possibly a wire brush for cleaning.

Can I use this spark plug in other motorcycles?

The NGK LKAR9BI-10 (95371) is specifically designed for Husqvarna 701 and KTM 1050/1290 models. Using it in other motorcycles is not recommended.

What should I do if the spark plug gets wet?

If the spark plug gets wet, remove it, dry it off completely, and then reinstall it. Check the ignition system for any other related issues if the problem persists.

How do I check the spark plug gap?

Use a feeler gauge to measure the gap between the center electrode and the ground electrode. Adjust the gap if it is not 1.0mm.

What is the correct torque for the spark plug?

The correct torque specification should be available in your motorcycle's service manual. If a torque wrench is not available, tighten the spark plug an additional 1/2 to 3/4 turn after hand-tightening.

Where can I buy a replacement spark plug?

You can purchase the NGK LKAR9BI-10 (95371) from authorized NGK retailers, online automotive parts stores, and some motorcycle dealerships.

Troubleshooting

Engine misfires or runs rough.

Check the spark plug for fouling or damage. Replace the spark plug with a new one if necessary. Ensure the gap is correct.

Difficulty starting the engine.

Check the spark plug for damage or wear. Ensure the spark plug is correctly installed and that the gap is correct. Check for fuel delivery issues.

Reduced fuel economy.

Inspect the spark plug for wear. Replace if necessary. Also, check other engine components, such as air filters.

Pros and Cons

Pros

Improved engine performance.
Long lifespan due to the iridium tip.
Easy installation with standard sizing.
Reliable spark for consistent engine operation.
Genuine NGK part for guaranteed quality.

Cons

Requires proper installation to function correctly.
Performance benefits only noticeable with proper engine maintenance.
May not fit all motorcycle models.
Spark plug gap must be correct.
Requires periodic inspection.

Setup, Compatibility & Care

Setup

Preparation: Ensure your motorcycle engine is cool before starting. Gather the necessary tools: a spark plug socket, torque wrench (optional but recommended), and a feeler gauge.
Removal: Locate the spark plug(s). Carefully remove the old spark plug(s) using the socket. Note the original spark plug's condition for diagnostic purposes.
Installation: Insert the new NGK spark plug (95371) into the engine. Hand-tighten it initially, then use a torque wrench (if available) to tighten to the manufacturer's recommended torque specification. If a torque wrench is unavailable, tighten the spark plug an additional 1/2 to 3/4 turn after hand-tightening.

Compatibility

This spark plug is compatible with:

Husqvarna 701 Enduro (Twin Spark) 18-
KTM 1050 Adventure (Twin Spark) 15 -
KTM 1290 Super Adventure (Twin Spark) 15 -

Care

Inspection: Regularly inspect the spark plug for wear, fouling, or damage.
Cleaning: If the spark plug is fouled, clean it carefully using a wire brush or spark plug cleaner. However, replacement is generally recommended.
Gap Check: Verify the gap (1.0mm) using a feeler gauge, and adjust if necessary, before installation.