Spark Plug

[rippedcb]

Noob question: I'm looking to change my spark plug and could not see it with the ferrings off. Do i need to remove the tank?

 

[s30series]

The tank is only four bolts. Swing it out if the way and the plugbwill be right there!

 

[Bagwell]

Two Bolts and Two Nuts and you need to watch out for the washers and or collared spacers as well as disconnect the fuel and vent hoses.

 

[rippedcb]

Perfect! Thanks guys.

 

[rick]

On that note, what are people using for spark plugs?

My owner's manual lists either a Bosch VR 5 NE with an 0.8mm gap or a Bosch VR 5 NEU with a 1mm gap. Unfortunately, I'm having a hard time finding those for sale at any of my usual online places. At ktmduke390forum.com they're saying that you can use a NGK LKAR8A-9 or a LKAR8AI-9 (KTM #75039093000).

Any thoughts on that? Also, what gap would you set on the NGK LKAR8A-9?

Thank you!

 

[Ryanthegreat1]

That NGK is factory gaped at 0.9mm. I would leave them right there.

Nearly all high performance engines say do not bend the ground strap to adjust the gap. That can lead to the ground strap breaking.

 

[rick]

Groovy. I can't remember the last time I had to gap a spark plug but, I like to check.