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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.

Here are the maintenance schedules for the various generations of Suzuki GSX-R1000:

  • 2001-2004 Suzuki GSX-R1000 — 988 cc engine, single round exhaust. K3-4 has a 32-bit ECU and 4 piston radial-mounted calipers, under 120 kW (161 hp) @ 10800 rpm
  • 2005-2008 Suzuki GSX-R1000 — 999 cc engine from wider bore.Titanium valves, lightweight pistons, slipper clutch. Trapezoidal exhaust. 2007-2008 has heavier dual exhausts. More power (131 kW @ 11000 rpm). Slight power bump in 2007 to 134 kW (182 hp) @ 12000 rpm.
  • 2009-2011 Suzuki GSX-R1000 — New more over-square engine, redesigned fork, still dual exhausts. Same power as 2007.
  • 2012-2016 Suzuki GSX-R1000 — Lighter pistons, revised cams. Ride modes. ABS from 2014. Brembo calipers. Similar power. Single exhaust.
  • 2017+ Suzuki GSX-R1000 and GSX-R1000R — RBW, IMU, more power (148.6 kW / 199.2 hp @ 13200 rpm)

The GSX-R1000 is not just a bigger version of the GSX-R750, although it shares many features with its little brother. The main frame is the same in both models, but the material used on the GSX-R1000 brother is 0.5 mm (0.020 in) thicker. Suzuki claimed the torsional rigidity of the frame in the GSX-R1000 is 10% higher than that in 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 reduced of the weight of the front calipers, fitting radial-mounted four-pot calipers on 300 mm 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.

NOTE:

  • 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
  • The break-in service is omitted.
miles x 100047.51114.5
km x 10006121824
months6121824Every
Air cleaner elementIIRI
Spark plugs (CR9EIX)IRIR
Valve clearanceI
Exhaust valveII
Engine oil (Motul 7100)RR
Engine oil filter (HF138)R
Fuel lineIIII4 years: R
Idle speedIIII
Throttle valve synchronizationII
Evaporative emission control system (if fitted)II
PAIR (air supply) system4 years: R
Throttle cable playII
Clutch cable playIIII
Radiator hosesIIII4 years: R
Engine coolant (Zerex Asian Vehicle Coolant)2 years: R
Drive Chain (Motul chain paste)IIII600 mi / 1000 km: C/L
BrakesIIII
Brake hosesIIII4 years: R
Brake fluid (Castrol DOT 4)IIII
TiresIIII2 years: R
SteeringII
Front forksII
Rear suspensionII
Exhaust pipe bolts and muffler bolt and nutTT
Chassis bolts and nutsTTTT
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 styled, 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-K4 GSX-R has 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 reducing the weight of 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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