Suzuki GSX-R 1100 (MODELL L-M) (1990–1991) — Specs

Identity

Manufacturer: Suzuki

Model: GSX-R 1100 (MODELL L-M)

Category: Sport

Type: Motorcycle

Years: 1990 → 1991

Engine

Displacement (cc): 1127

Cylinders: 4

Power (hp): 100

Power (kW): 74

Torque (Nm): 100

Dimensions

Overall length: 2080 mm

Overall width: 730 mm

Overall height: 1110 mm

Wheelbase: 1410 mm

Ground clearance: 130 mm

Weight (kg): 225

Seat height (mm): 810

Tank (L): 21

Tires

Front tire: 120/70 ZR17

Rear tire: 190/55 ZR17

Front pressure (bar): 2.3

Rear pressure (bar): 2.5

Drivetrain

Drive chain: 530 chain, 118 links

Sprockets (front / rear): 15 / 48

Ignition

Spark plug: NGK JR9B

Plug gap: 0.7 mm

Fluids & Filters

Engine oil: SAE10W-40

Engine oil (with filter, L): 4.2

Engine oil (without filter, L): 4

Oil filter: Hiflofiltro HF138

Air filter: Hiflofiltro HFA3621

Brake fluid: DOT 4

Fuel consumption

Estimated range: ~350 km on a full tank (21.0 L)

Service

Battery: OEM battery specification

Service interval (km): 12000

Service interval (months): 12

Valve check (km): 24000

Parts and consumables for this motorcycle

Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.

Service notes

Service interval: every 12,000 km or 12 months, whichever comes first. Valve clearance check every 24,000 km. Valve clearance — intake cold 0.10-0.15 mm, exhaust cold 0.18-0.23 mm. Engine oil: oil grade SAE10W-40, 4.2 L with filter change, 4 L without filter change. Spark plug: NGK JR9B (gap 0.7 mm). Brake fluid: DOT 4. Chain: 118 links, sprockets 15/48 teeth. Tire pressure: front 2.3 bar, rear 2.5 bar (cold). Tire size: front 120/70 ZR17, rear 190/55 ZR17. Always confirm critical values with the workshop manual or an authorised dealer.

OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.

Engine oil

Spec: SAE10W-40, 4.2 L (with filter), 4.0 L (without filter)

OEM OEM recommended engine oil (SAE 10W-40)
Premium Motul 7100 4T (100% Synthetic, Ester)
Premium Motul 5100 4T Technosynthese (Semi-Synthetic)

Which Motul for this bike?

	Motul 7100 4T ✓	Motul 5100 4T
Product	Motul 7100 4T — 100% fully synthetic	Motul 5100 4T — semi-synthetic
Best for	Sport, Naked, Adventure (600cc+), track	Standard, Cruiser, Scooter, daily use
RPM protection	Excellent — ester base, stable under load	Good — for normal riding conditions

Standard Repsol Moto Racing 4T (Synthetic)
Standard Elf Moto 4 Tech (Semi-Synthetic)

Fully Synthetic vs Semi-Synthetic

	Fully Synthetic	Semi-Synthetic
Base oil	100% chemical synthesis (ester or PAO)	Mineral oil + synthetic additives
Heat resistance	Excellent — stable at extreme heat & RPM	Good — suitable for normal temperatures
Cold start	Better — reaches engine faster when cold	Good — adequate for normal climates
Change interval	Longer (up to 10,000 km)	Shorter (5,000–7,000 km typical)
Price	Higher	Lower

Oil filter

Spec: Hiflofiltro HF138

Premium Hiflofiltro HF138
Premium K&N KN-138

Air filter

Spec: Hiflofiltro HFA3621

Standard Hiflofiltro HFA3621

Spark plug

Spec: NGK JR9B, gap 0.7 mm

OEM NGK JR9B
Premium NGK DR9EIX
Standard NGK JR9B

Front brake pads

Spec: EBC SFA193HH

Premium EBC SFA193HH

Rear brake pads

Spec: EBC SFA193HH

Premium EBC SFA193HH

Drive chain

Spec: 118 links | Sprockets 15/48 teeth / 118 links

Front tire

Spec: 120/70 ZR17, 2.3 bar

OEM OEM front: 120/70 ZR17

Rear tire

Spec: 190/55 ZR17, 2.5 bar

OEM OEM 190/55 ZR17

Battery

Premium Yuasa YTZ14S or YTX14-BS (typical 1000-1300cc)

Brake fluid

Spec: DOT 4

Standard TotalEnergies HBF4

Coolant

Service interval

Spec: 12 000 km / 12 months

OEM Engine oil + oil filter change
OEM Air filter inspection
OEM Spark plug check
OEM Brake fluid replacement: every 2 years

Valve check

Spec: 24 000 km

OEM Intake clearance: cold 0.10-0.15 mm
OEM Exhaust clearance: cold 0.18-0.23 mm

Suspension

Spec: 41 mm USD fork / 398 ml SAE 10W

OEM Fork: 41 mm USD fork
OEM Fork oil grade: 398 ml SAE 10W