1990 Suzuki GSX-R400 SP

Description

Additional photos of this Suzuki GSX-R400 SP are available here for your perusal.

In 1990, Suzuki introduced an all-new GSX-R400 for the Japanese market with the code name GK76A. Fierce competition in the 400cc category amongst the Japanese manufactures was fueled by the restrictive riders licensing rules in Japan that favored smaller displacement bikes and the TT-F3 racing class that spurred continual development of the models from the big four Japanese builders.

The GSX-R 400 was originally launched in Japan in 1984 with the GK71 model, featuring a liquid-cooled inline four cylinder engine with DOHC, four valves per cylinder and close to 60 hp. Lighter than its rivals (under 350 lbs wet), the aluminum framed Suzuki became a hit with its excellent handling, more-than-adequate brakes, and a race-derived heritage. By the time the 1990 GK76 model was launched, the GSX-R 400 had been through several changes and the new double cradle aluminum frame that mimicked the larger 750 and 1100 models almost looked like a step back from the previous model’s (GK73) modern-looking twin spar frame but the GK76A came with huge improvements in new inverted front forks, better brakes, 17″ wheels front and rear, a new 4-1 exhaust, all new styling and an engine producing 59 hp at 14,500 RPM.

In 1988, Suzuki introduced a “SP” (Sports Production) variant which featured revised gearbox ratios as well as rebound adjustment and a remote reservoir for the rear shock.

The SP also got a small decal on the front fairing to remind you that it was special.

This example is VIN: GK76A102709, Engine #: K709-102712.

The odometer shows 5,088 kilometers (3,161 miles).

In preparation for the listing, the seller had us clean/sync the carbs, rebuild the front brake calipers, flush the front and rear brake fluid, flush the coolant, change the engine oil/filter, install a new battery, install a new fuel petcock, and install EBC rear brake pads. We also took the tank off to have it cleaned and lined by an outside partner.

Olly and Steve did the work, they note that the brake pads are at 45%/100% front/rear.

Lastly, we installed new Bridgestone Battlax Hypersport S21 tires with date codes of 0821 and 0821.

Modifications:
Aftermarket seat cowl.

Braided brake lines.

Cosmetic Blemishes: please see the album up top for all known cosmetic blemishes. Here is a selection:

The stripes on the cowl do not match the tail.

Inside of the tank:

The sale includes one key.

Currently located at our facility in Santa Monica, California (please make an appointment for an inspection), this Suzuki is offered on a clean Georgia title. Have any GSX-R400 stories or questions about this listing? Let us know in the “Comments” tab!