Big Bore Cylinder Barrel Kit: Aprilia Area 51 (1998-2003) Kawasaki ZR-7S If you have a weak

If you have a weak spark on your Suzuki GS1100 then the ignition coils (or plugs / plug caps) are the likely culprit and it's a good idea to get these replaced especially as the original coils are all now over 40 years old

They will replace top bearing 92116-1067 and bottom bearing 92116-1069 on a ZZR 1100 / ZX 1100

Yamaha FZS 1000 Fazer S (2003-2005)

the bottom is 10mm (You may need to change these to the required sizes)

Big Bore Cylinder Barrel Kit: Aprilia Area 51 (1998-2003) Kawasaki ZR-7S If you have a weakBrand new big bore cylinder barrel kit to fit: Aprilia Area 51 (1998 2003). This cylinder kit has been manufactured to upgrade the original top end on an Aprilia Area 51 to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade from 50cc to 70cc.