Walk around video:
Please Note: The bike does not cold start or maintain idle. Please see the included full maintenance report.
Running video:
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.
With that said, 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.
This example is VIN: GK78A106963, Engine #: K709-105871. The seller acquired it through an Iconic Motorbikes auction in October 2022. The previous owner was our very own Adam! The seller never titled it, so it’s still signed over to Iconic Motorbikes, but Iconic will be reassign the title to the new owner. For this reason, the bike is being represented as a dealer sale.
During their ownership, the seller has covered 20 kilometers. The odometer shows 13,002 kilometers (8,079 miles).
Maintenance:
In preparation for the listing, the seller had us perform a safety inspection and install a new battery. Our service department notes the following on their condition report:
Gas Tank Internal Condition: Ok
Engine Oil Level: Ok
Engine Oil Quality: Good
2T Oil Level: N/A
Coolant Level: Ok
Coolant Quality: Ok, 3% moisture
Rear Hydraulic Fluid Level: Ok
Rear Hydraulic Fluid Quality: Fail, >3% moisture
Clutch Hydraulic Fluid Level: N/A
Clutch Hydraulic Fluid Quality: N/A
Final Drive Condition: Ok
Headlight High Beam: Ok
Headlight Low Beam: Ok
Passing Light: Ok
Parking Light: Ok
Turn Signals: Ok
Tail Light: Ok
Brake Light (Front Switch): Ok
Brake Light (Rear Switch): Ok
Plate Light: Ok
Horn: Ok
Kill Switch: Ok
Brake Pad % Remaining Front: 90%
Brake Pad % Remaining Rear: 90%
Forks: LH fork is leaking
Shock/s: Ok
Tire Date Code Front: 17/13
Tire Date Code Rear: 15/17
Tire % Remaining Front: 90%
Tire % Remaining Rear: 90%
Tire Press. Front: 32 PSI
Tire Press. Rear: 34 PSI
Battery Standing Voltage: 12.5V
Charging Voltage @ 4k RPM: 13.6V
Running Condition: Runs on bench, poorly
Test Ride Completed: None taken
Test Ride Distance: N/A
Tires Installed:
Front: 120/60-17 Michelin Pilot Power 2CT
Rear: 160/60-17 Michelin Pilot Power 2CT
Notes:
-One throttle cables has light unbraiding, near carb
-Left fork is leaking
-Runs poorly on bench, needs carb service
-Bike runs on three cylinders
-Leak from petcock
-Catch can installed near RH fairing
-Front and rear brakes test with high moisture
-Hardware and grommets missing to hold fuel tank to bike, under seat
-Lower front plastic is damaged
-Sings of oil leak, near head
-Cosmetic Imperfections:
-Scratch on RH belly pan, bottom
-Aftermarket parts installed:
-Keihin flat slide carbs
-Auto Rimessa silencer
REPAIRS PERFORMED:
-New battery
REPAIRS RECOMMENDED:
-Throttle Cables
-Carb service
-Replace petcock
-Hydro 2 (front and rear brake)
-Fork service
-Chain service
-Fluid leak diagnostic – oil leak near header
-Replace missing grommets and hardware
-Bike detail
Modifications:
Auto Rimessa/Racin’ Function exhaust.
Keihin flat slide carbs with velocity stacks.
Inside of the tank:
It is riding on Michelin Pilot Power 2CT tires with date codes of 1517 and 1717.
The sale includes one key.
Cosmetic Blemishes: please see the album in the “Photos” tab for all known cosmetic blemishes. Here is a selection:
Currently located in Panorama City, California, (please make an appointment for an inspection) this Suzuki is offered on a clean California title.
Have any GSX-R400 stories or questions about this listing? Let us know in the “Comments” tab!
