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Suzuki GSX-R1000 K1-K4 (2001-2004) Maintenance Schedule and Service Intervals

Suzuki GSX-R1000 K1-K4 Stock Image

This is the maintenance schedule and associated service intervals for the Suzuki GSX-R1000 K1-K4 (2001-2004).

The Suzuki GSX-R1000 is a sport bike from Suzuki’s GSX-R series of motorcycles. It was introduced in 2001 to replace the GSX-R1100 and is powered by a liquid-cooled 988 cc inline four-cylinder, fuel-injected engine.

The GSX-R1000 was not just a bigger version of the GSX-R750, although it shared many features with its little brother. The mainframe is the same in both models, but the material used on the GSX-R1000 brother was .5 mm (0.020 in) thicker. Suzuki claimed the torsional rigidity of the frame had increased 10% in comparison with the GSX-R750.

Suzuki made some minor improvements for the K3 model, which was released in September 2002. Suzuki improved the fuelling with a 32-bit ECU and lightened the front brakes to radial-mounted four-pot calipers on 300mm discs, replacing the six-pot calipers on 320mm discs of the outgoing K2 model.

Apart from some different brake pads, the maintenance schedule is identical.

K3 Suzuki GSX-R1000
K3 model GSX-R1000 with 4-pot tokico front calipers.

Suzuki released the K5 Suzuki GSX-R1000 in late 2004. That engine is now iconic, and the bike a legend.

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What you need to service the K1-K4 Suzuki GSX-R1000

So you’re maintaining your original classic Suzuki superbike eh? Awesome!

Here are the parts you’ll need — these are the specific part codes for the K1-K4 models.

PartSuzuki GSX-R1000 K1-K4 spec
OilSuzuki requires engine oil with JASO MA spec, or at least API SF/SG or SH/SJ spec. Many oils fit this. Suzuki recommends SAE 10W-40 weight “Suzuki motor oil”, but I wouldn’t over-think this and use another popular high-grade oil like Motul 300V or Motul 7100.
Oil filterUse a Hiflofiltro HF138, which is a drop-in high-quality replacement. This is used on all GSX-R1000 models (yes, even up to 2021).
Air filterUse a K&N air filter as a drop-in replacement, part number SU-7500 for K1-K4 models.
Spark plugsThe standard spark plug is NGK CR9E. Some replace them with iridium CR9EIX plugs.
Brake fluidSuzuki (like most motorcycles) requires DOT 4 brake fluid (the K1-K4 GSX-R1000 had a cable-actuated clutch)
Brake padsMost people upgrade their brake pads to EBC ones for better performance (and they’re very affordable). Use EBC part codes
* 01-02 front (6 pot): FA188HH for the front,
* 03-04 front (Tokico, 4 pot): FA379HH for the front
* All years 01-04 rear: FA254HH
GSX-R1000 EBC brake pads
CoolantSuzuki only requires a coolant that’s “compatible with an aluminium radiator”. Most motorcycle coolants are, and so a Valvoline Zerex Asian Vehicle Coolant is a fine option.
Chain maintenanceUse either Motul chain paste or a complete Motul chain care kit for frequent chain servicing.
GreaseAlways handy to have some lithium soap-based grease for external pivot points, like the kickstand.
Suzuki GSX-R1000 K1-K4 maintenance parts

Suzuki GSX-R1000 K1-K4 (2001-2004) Maintenance Schedule

Below is the maintenance schedule for the Suzuki GSX-R1000 K1-K4 (2001-2004).

Maintaining the original GSX-R1000 is much like maintaining any other sport bike. Service the chain and change the oil regularly, Change the fluids (brake, clutch, cooling) every 4 years, and remember to re-torque and lubricate external pivot points with grease.


  • I= Inspect and clean, adjust, replace or lubricate as necessary.
  • R= Replace
  • T= Tighten
  • More frequent servicing may be required on motorcycles that are used under severe conditions
  • (E): E-33 only.
miles x 10000.647.51114.5
km x 100016121824
Air cleaner elementIIRI
Spark plugs (CR9EIX)IRIR
Valve clearanceI
Exhaust valveIII
Engine oil (Motul 7100)RRR
Engine oil filter (HF138)RR
Fuel lineReplace every 4 yearsIIII
Idle speedIIIII
Throttle valve synchronizationI (E)II
Evaporative emission control system (E-33 only)II
PAIR (air supply) systemReplace vapor hose every 4 years.
Throttle cable playII
Clutch cable playIIIII
Radiator hosesReplace every 4 years.IIII
Engine coolant (Zerex Asian Vehicle Coolant)Replace every 2 years.
Drive Chain (Motul chain paste)Clean and lubricate every 1,000 km (600 miles)IIIII
Brake hosesReplace every 4 years.IIII
Brake fluid (Castrol DOT 4)Replace every 2 yearsIIII
Front forksII
Rear suspensionII
Exhaust pipe bolts and muffler bolt and nutTTT
Chassis bolts and nutsTTTTT
Suzuki GSX-R1000 K1-K4 maintenance schedule

Tyre size and tyre pressure for the Suzuki GSX-R1000 K1-K4 (2001-2004)

The manual for the K1-K4 Suzuki GSX-R1000 recommends the following tyre sizes and pressures. Of course, people choose their own tyres these days.

TyreSizeTyre pressure (cold)Brand(s) shipped with
Front120/70 ZR17 M/C 58W250 kPa (2.50 kgf/cm2)/ 36 psiBRIDGESTONE: BT011F F
Rear190/50 ZR 17 M/C 73 W290 kPa (2.90 kgf/cm2)/ 42 psiBRIDGESTONE: BT012R F
Tyres and tyre pressures for the Suzuki GSX-R1000 K1-K4

About the Suzuki GSX-R1000 K1-K4 (2001-2004)

The original GSX-R1000 was a huge improvement on the outgoing GSX-R1100 and an improvement on the GSX-R750 of the time. Even though it had a lot more power, the original K1 GSX-R1000 was only 4 kg (9 lb) heavier than its smaller 750 brother.

The original GSX-R1000 started life with dual throttle valves, titanium nitride-coated fork stanchions (which might be getting a bit faded these days), and really strong six-pot brakes.

It was sharply stylesd, too. The 2001 GSX-R1000 had houses multi-reflector, vertically mounted headlights for a narrow profile, improved aerodynamics over its 1100 predecessor and a highly effective ram air system. The whole bike was narrow, with a slim tank and sleek tail section.

The original K1-Kr GSX-R had white gauges, with a white-faced analog tach, digital LCD speedometer, odometer/tripmeter, clock and water temperature readouts. It used LEDs are also used for the turn signal, high beam, neutral and fuel level indicators. Additionally the GSX-R1000 came with a programmable engine-rpm indicator that can be used as a shift light.

In 2003, Suzuki’s engineers managed to lower the original K1-K2’s weight, increase its power, and make it handle better. They did this by lowering weight (particularly unsprung mass by lightening the front brakes) and tuning the engine, bringing power at the crank up to 121 kW (162 hp) from 120 kW (160 hp).

Suzuki also added four ventilation holes between the cylinders to equalize crankcase pressure beneath the pistons. This helped moving the air intake nearer to the centerline. They also upgraded the engine management system from a 16-bit to a 32-bit ECU, tuning it for additional horsepower and torque.

In late 2004, Suzuki released the K5 GSX-R1000, an engine so incredible it’s still used today in some of Suzuki’s motorcycles.

Manual for the Suzuki GSX-R1000 K1-K4 (2001-2004)

Suzuki GSX-R1000 K1-K4 (2001-2004) Maintenance Schedule Screenshot From Manual

The above maintenance schedule comes directly from the user’s manual for the Suzuki GSX-R1000 K1-K4 (2001-2004) from a 2003 manual.

You can download it from here.

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