Suzuki GT 380 J/K/L/M/A (SEBRING) (1972–1980) — Specs
Identity
Manufacturer: Suzuki
Model: GT 380 J/K/L/M/A (SEBRING)
Category: Motorcycle
Type: Motorcycle
Years: 1972 → 1980
Engine
Displacement (cc): 371
Cylinders: 3
Power (hp): 27
Power (kW): 20
Torque (Nm): 40
Dimensions
Overall length: 2100 mm
Overall width: 790 mm
Overall height: 1140 mm
Wheelbase: 1430 mm
Ground clearance: 160 mm
Weight (kg): 190
Tank (L): 15
Tires
Front pressure (bar): 1.8
Rear pressure (bar): 2
Drivetrain
Drive chain: 520 chain, 104 links
Sprockets (front / rear): 14 / 42
Ignition
Spark plug: NGK B7ES
Plug gap: 0.7-0.8 mm
Fluids & Filters
Engine oil (without filter, L): 1.3
Oil filter: OEM oil filter
Air filter: OEM air filter
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~375 km on a full tank (15.0 L)
Service
Battery: OEM battery specification
Service interval (km): 3000
Service interval (months): 12
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 3,000 km or 12 months, whichever comes first. Engine oil: 1.3 L without filter change. Spark plug: NGK B7ES (J-K) (gap 0.7-0.8 mm). Brake fluid: DOT 4. Chain: 104 links, sprockets 14/42 teeth. Tire pressure: front 1.8 bar, rear 2 bar (cold). 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: nan, 1.3 L (without filter)
- OEM OEM recommended engine oil
- 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
Air filter
Spark plug
Spec: NGK B7ES (J-K), gap 0.7-0.8 mm
- OEM NGK B7ES
- Premium NGK B8ES (L/M/A)
- Standard NGK B7ES
Front brake pads
Spec: EBC FA055
- Premium EBC FA055
Rear brake pads
Spec: EBC FA055
- Premium EBC FA055
Drive chain
Spec: 104 links | Sprockets 14/42 teeth / 104 links
Front tire
Spec: 1.8 bar
Rear tire
Spec: 2.0 bar
Battery
- Premium Yuasa YTX9-BS or YTZ7S (typical 250-500cc)
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Service interval
Spec: 3 000 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
- OEM 2-stroke engine — no valve check needed
Suspension
Spec: telescopic fork / 210ML:J-K/145:L-A
- OEM Fork: telescopic fork
- OEM Fork oil grade: 210ML:J-K/145:L-A
