986 CBR250FG and CBR250FG-YA (MC14). Twin front disks, single front headlight, bikini fairings.
1987 CBR250R(H) (MC17). Twin disks, still single head light, full fairings.
1988 CBR250R(J) (MC19). Single larger front disk, smaller chain, twin head lights, fuel pump.
1989 CBR250R(K) (MC19). Essentially identical to the R(J), except now had a speed limiter which was set at 185 km/h.
1990-1991 CBR250RR(L) (MC22). A completely new redesigned bike that features a new cast/pressed aluminium frame that gives a more aggressive riding position, gull shaped swing arm that was adopted from the NSR250, higher rising tail, six spoke cast aluminium wheels and dual front Ø276 mm floating disk brakes. These changes resulted in a dry weight of 142 kg.
The only feature that was adopted from the previous model CBR250s was the original MC14E engine. This too was slightly modified with a crankshaft that featured Ø27.5 mm small-end journals, up Ø0.5 mm from the previous Ø27 mm journals. The engine also uses a completely new set of VP carburetors that feature smaller throats reduced from Ø32 mm to Ø30.5 mm. These carburetors are now fed by a vacuum operated pump for fuel delivery.
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