NGK Spark Plug Caps

Does your engine run like you've got a bad spark plug when you know it doesn't? It could be the plug cap. They rust, corrode, burn-out internally and lose their tight fit on the spark plug. These NGK spark plug caps will insure all the ignition coil's energy is getting to the plug and help you fight DNF's. Easily installed, just threads onto the end of the plug wire. Also helps protect from stalling in wet conditions. Fits all 1977 thru 1981 YZ250, 400 and 465 models. Choose red or black.