Kawasaki KH 400 (1976–1978) — Specs
Identity
Manufacturer: Kawasaki
Model: KH 400
Category: Motorcycle
Type: Motorcycle
Years: 1976 → 1978
Engine
Displacement (cc): 400
Cylinders: 3
Power (hp): 36
Power (kW): 26
Torque (Nm): 35
Dimensions
Overall length: 2100 mm
Overall width: 790 mm
Overall height: 1140 mm
Wheelbase: 1430 mm
Ground clearance: 160 mm
Weight (kg): 177
Tank (L): 14
Tires
Front tire: 3.00-18
Rear tire: 3.50-18
Front pressure (bar): 1.7
Rear pressure (bar): 2.2
Drivetrain
Drive chain: 520 chain, 102 links
Sprockets (front / rear): 16 / 37
Ignition
Spark plug: NGK B8HS
Plug gap: 0.7 mm
Fluids & Filters
Engine oil (with filter, L): 1.5
Oil filter: OEM oil filter
Air filter: OEM air filter
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~350 km on a full tank (14.0 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: 1.5 L with filter change. Spark plug: NGK B8HS (gap 0.7 mm). Brake fluid: DOT 4. Chain: 102 links, sprockets 16/37 teeth. Tire pressure: front 1.7 bar, rear 2.2 bar (cold). Tire size: front 3.00-18, rear 3.50-18. 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, 1.5 L (with 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 B8HS, gap 0.7 mm
- OEM NGK B8HS
- Premium NGK BR8HIX
- Standard NGK B8HS
Front brake pads
Spec: EBC FA033
- Premium EBC FA033
Rear brake pads
Spec: EBC FA033
- Premium EBC FA033
Drive chain
Spec: 102 links | Sprockets 14-16/37 teeth / 102 links
Front tire
Spec: 3.00-18, 1.7 bar
- OEM OEM 3.00-18
Rear tire
Spec: 3.50-18, 2.2 bar
- OEM OEM 3.50-18
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 / 355 ml SAE 10W
- OEM Fork: telescopic fork
- OEM Fork oil grade: 355 ml SAE 10W
