Hardly altering its good looks, Suzuki made several changes to the GSX-R750 for 1990 - beefier frame, 4-into-1 exhaust, and a lot of internal changes to the air/oil-cooled I-four. This Texas example is nice overall, but the evil lurking on the garage shelves bit the tank pretty hard.
Suzuki had tried their shorter-stroke race engine design in 1988-89 road machines, but returned to a torquier 70 x 48.7 mm bore and stroke for 1990. Great efforts were made to help the engine rev more easily, with lighter pistons, threading connecting rods bolts right into the rods, with 38mm Mikuni carburettors and changes in the head to address cracks between the spark plug and valve seats. The result was 115 hp at 11,000 rpm and 57.5 ft.-lbs. torque. While ROW machines got new upside-down forks, they wouldn't arrive here until 1991.
Having seen some use with 28,000+ miles, this GSX-R is quite stock, showing just the Carbon-Tech exhaust. Hard to know the reason for the fading of the middle fairing section, perhaps it is a decal which hasn't aged as well as the paint. The parts and bikes dealer says this in the eBay auction:
All Original aside from the pipeOne Owner BikeOnly fault is a ding in the tank and a small rub on the lower left fairing as shown in the picturesRecent refreshRuns and Rides GreatYou will be hard pressed to find another like this one28k MilesClean Title and Ready to Ride
Suzuki hung on to the racey feel of the GSX-R, with a serious riding position and requiring a resolute hand at turn-in time. The quality suspension and lighter weight make the bike, as Colin Chapman said, faster everywhere. Complete and stock GSX-R750's don't pop up every day, and while the new owner will have to take care not to let any refurbishment blow up the re-sale value, this sure looks like a good candidate.