If you just bored it once or twice over, your stock spark plug will be all you need. A NGK BR10ECM (or corresponding plug from another brand) with a .032" (0.8mm) gap.
Impossible to answer, depends on what model KTM you have.
NGK Spark Plug BR8ECM
bad plug bad plug cap stator
I have a KTM 525 XCW and have to pull the tank (have to pull the seat to pull the tank) to get to the plug. You need a special thin wall plug tool to get down through the head to the spark plug. Good thing they don't foul plugs like a 2 stroke will.
I have a 07 KTM 525 XCW and the manual call for 6mm on plug gap.
NGK BR8ECM
br10ecmix
0.60mm
it means that spark plug is screwed up and you need to cleans or get a new one
No, it's not true that the NGK BR9EIX spark plug is the same for both the KTM 85 SX and KTM 125 SX. While they may have similar spark plug specifications, the two bikes often require different spark plugs due to their varying engine sizes and performance characteristics. It's essential to consult the owner's manual or a professional to confirm the correct spark plug for each specific model.
We use the nkg br9eix
0.7 mm