Headstock Bearings and Seals: Yamaha FZ600 FZ 600 (1986-1988) Kawasaki ZR400 If you have a weak

If you have a weak spark on your Kawasaki GPX600 then the coils could be the culprit and it's a good idea to get some new coils on the bike

To replace OEM: 30510-KT7-013

Suzuki GS 500 F (GM51A) (2004-2007)

Suzuki GSF 1250 SA (ABS) (2007-2016)

Headstock Bearings and Seals: Yamaha FZ600 FZ 600 (1986-1988) Kawasaki ZR400 If you have a weakBrand new set of headstock steering bearings and seals to fit: Yamaha FZ 600 (1986 1988). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Yamaha FZ600 for the years and models shown above. Top sized: 25mm x 48mm x 12mm. Bottom sized: 30mm x 48mm x 12mm. All sizes set out ID x OD x Thickness. The seals are not included in the measurements. If you require different