KTM 620 E DUKE (1995–1999) — Specs
Identity
Manufacturer: KTM
Model: 620 E DUKE
Category: Naked
Type: Motorcycle
Years: 1995 → 1999
Engine
Displacement (cc): 609
Cylinders: 1
Power (hp): 50
Power (kW): 37
Dimensions
Overall length: 2090 mm
Overall width: 790 mm
Overall height: 1085 mm
Wheelbase: 1430 mm
Ground clearance: 145 mm
Weight (kg): 165
Seat height (mm): 860
Tank (L): 11.3
Tires
Front tire: 120/70 ZR17
Rear tire: 180/55 ZR17
Front pressure (bar): 1.8
Rear pressure (bar): 1.9
Drivetrain
Sprockets (front / rear): 17 / 38
Ignition
Spark plug: NGK DR8EA
Plug gap: 0.7 mm
Fluids & Filters
Engine oil: SAE15W-50, API SF
Engine oil (with filter, L): 2.1
Oil filter: OEM oil filter
Air filter: OEM air filter
Coolant (L): 1
Brake fluid: DOT 5.1
Fuel consumption
Estimated range: ~235 km on a full tank (11.3 L)
Service
Battery: OEM battery specification
Service interval (km): 6000
Service interval (months): 12
Valve check (km): 12000
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 6,000 km or 12 months, whichever comes first. Valve clearance check every 12,000 km. Valve clearance — intake cold 0.10 mm, exhaust cold 0.10 mm. Engine oil: oil grade SAE15W-50, API SF, 2.1 L with filter change. Spark plug: NGK DR8EA (gap 0.7 mm). Brake fluid: DOT 5.1. Coolant capacity: 1 L. Sprockets: 17/38 teeth. Tire pressure: front 1.8 bar, rear 1.9 bar (cold). Tire size: front 120/70 ZR17, rear 180/55 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: SAE15W-50, API SF, 2.1 L (with filter)
- OEM OEM recommended engine oil (SAE 15W-50)
- Premium Motul 7100
- Premium Motul 5100
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
- Standard Elf Moto 4 Tech
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 DR8EA, gap 0.7 mm
- OEM NGK DR8EA
- Premium NGK DR8EIX
- Standard NGK DR8EA
Front brake pads
Rear brake pads
Drive chain
Spec: Sprockets 17/38 teeth
Front tire
Spec: 120/70 ZR17, 1.8 bar
- OEM OEM front: 120/70 ZR17
Rear tire
Spec: 180/55 ZR17, 1.9 bar
- OEM OEM rear: 180/55 ZR17
Battery
- Premium Yuasa YTX12-BS or YTZ10S (typical 500-750cc)
Brake fluid
Spec: DOT 5.1
- Standard TotalEnergies HBF4
Coolant
Spec: 1.00 L coolant capacity
Service interval
Spec: 6 000 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: 12 000 km
- OEM Intake clearance: cold 0.10 mm
- OEM Exhaust clearance: cold 0.10 mm
Suspension
Spec: 40 mm USD fork / SAE 7.5 - 10W
- OEM Fork: 40 mm USD fork
- OEM Fork oil grade: SAE 7.5 - 10W
