NGK, spark plug D7EA

BMW: 85-96 K 75 750cc; 89-96 K 75 RT 750cc; 85-96 K 75 S 750cc; 83-91 K 100 LT 1000cc; 83-91 K 100 RL 1000cc; 83-89 K 100 RS 1000cc; 90-93 K 100 RS 1000cc; 83-91 K 100 RT 1000cc. Yamaha: 83-85 TT 600 600cc.