an ngk BR9EG or BR10EG
The spark plug gap for a 1994 Yamaha YZ250 should be .024 inches. A Yamaha YZ250 is a 249cc motorcycle.
The proper spark plug gap for a 2002 Yamaha YZ250 is .024 inches. New spark plugs usually come pre-gapped, however.
I have a 1988 Yamaha YZ250 and my manual states .028 is the setting that you should use.
If you create an account with Yamaha.com you can see all the specifications of that MX bike. Spark Plug gap- 0.5-0.6mm(0.020-0.024 in)
The proper spark plug for 4hp Briggs & Stratton is a J8 which I use in all my motors.
To send a spark the the proper spark plug at the proper time.
Spark plug gap should be .025 http://store.chainsawr.com/
The proper spark plug gap for a 1995 Hyundai Accent is .044"
The spark plug gap is .020 on your gapper gauge!
.044 is the proper plug gap setting.
The 2004 Viper Yamaha spark plug gap is .018. Most spark plugs will be pre-gapped by the spark plug manufacturer.
WEMOTO.COM SAYS TO PUT USE A "NGK B8EG" I BEEN USING A NGK B8ES IN MINE, SEEMS TO DO FINE