To increase the resistance against misfiring we recommend using the red NGK spark plug cap
KA100 Spark Plugs - 2 Stroke Kart Engine Forums - KartPulse: Karting's Community Hub
SPARK PLUGS
13. Rotax Max 125cc plug plug cap - Mora Racing
PVL Silicone Spark Plug Cap (W420/2 - 401222) - Fastech-Racing
Products – Forward Direction Motorsports
Spark Plugs & Wires - Electrical & Lighting - Parts - Motorcycle
Exact Replacement Spark Plug Cap Used on ATV's, Motorcycles, Snowmobiles & More Replaces NGK Part # TB05EMA
TB05EMA Snowmobile, ATV and Motorcycle Aftermarket Spark Plug Ignition Cap
BR10EG SOLID NGK 3993 Racing Spark Plug
NGK (6263) CR9E Spark Plug - Pack of 10 : Automotive
Rotax – Forward Direction Motorsports
Rotax Max Electric System
NGK (8328) LB01EP Spark Plug Cap , Black : Automotive
