750cc:RC30 / VFR 750 R 1987-1993 U27FER9 4129 0.9 mm gap. DENSO spark plugs - U27FER9. Picture shows U27ETR but U27FER9 are similar. Made in Japan/China. Honda NC30 supplied with Denso Y27FER-C plugs.
The DENSO spark plugs are a great fit for riders of HONDA VFR750 and VFR800 motorcycles, as well as RC30 models, offering improved performance and reliability.