KYMCO AK 550 Premium — OEM Fluid, Tire Pressure & Maintenance Specs
550.4cc Liquid-Cooled Parallel-Twin DOHC 8-Valve with Cornering AIBS & Cruise Control · Source: KYMCO AK 550 Premium (2023–Present) Official Owner’s Manual Maintenance Specifications
According to the KYMCO AK 550 Premium (2023–Present) Official Owner’s Manual Maintenance Specifications, the 2023–Present KYMCO AK 550 Premium (chassis SAA0BA/F6-A0) requires 2.2 L (2.32 US qt) of SAE 10W-40 (JASO MA2, API SN / JASO MA2 Full Synthetic) engine oil for a drain-only change and 2.5 L (2.64 US qt) with filter service (1541A-LGC6-E00 / HF160). Standard solo cold tire pressure is 225 kPa / 2.25 bar / 33 PSI front (120/70 R15 56H) and 250 kPa / 2.50 bar / 36 PSI rear (160/60 R15 67H), paired with 2× NGK CR8E spark plug(s) and a YTZ14S battery.
Drain only: 2.2 L (2.32 US qt)
R 250 kPa (2.50 bar)
Est. Range: ~309 km (192 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Automatic Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 · JASO MA2 · API SN / JASO MA2 Full Synthetic |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.2 L (2.32 US qt) • With filter/strainer: 2.5 L (2.64 US qt) • Complete dry overhaul: 3.1 L (3.28 US qt) |
| OEM Oil Filter Code & Type | 1541A-LGC6-E00 / HF160 |
| Correct Oil Level Check Method | Dry-sump oil tank — warm engine to operating temperature and check oil tank/frame dipstick immediately after shutdown per OEM procedure (never top up cold) |
| Oil Drain Bolt Torque | 25 N·m (18.4 lb-ft / 2.55 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 120/70 R15 56H · Rear: 160/60 R15 67H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 225 kPa / 2.25 bar / 33 PSI Rear: 250 kPa / 2.50 bar / 36 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 225 kPa / 2.25 bar / 33 PSI Rear: 275 kPa / 2.75 bar / 40 PSI |
| OEM Spark Plug & Quantity | NGK CR8E × 2 (Gap: 0.7–0.8 mm) |
| OEM Battery Code & Rating | YTZ14S (12V 11.2Ah MF AGM) |
| Final Drive Maintenance | Carbon/Aramid Reinforced Secondary Belt — Inspect belt deflection and pulley debris |
| Brake Fluid & Coolant | DOT 4 · OAT ethylene-glycol coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 550 cc · 51 hp @ 7,500 rpm · 52 N·m (38.4 lb-ft) @ 5,750 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 785 mm (30.9 in) · 238 kg (525 lbs) |
| Fuel Tank & Est. Real-World Range | 14.5 L (3.8 US gal) · ~21.3 km/L → ~309 km (192 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 5,000 km / 10,000 km • Air Filter / Spark Plug: 10,000 km / 15,000 km • Valve Clearance Check: 20,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Second-generation flagship tourer adding electronic throttle cruise control, power windscreen, Bosch cornering AIBS, TCS, and piano-key console switchgear.
Oil & Clutch Mechanical Engineering Note
Dry-sump oil-bathed wet multiplate clutch strictly requires 2.5 L of full-synthetic SAE 10W-40 JASO MA2 with filter HF160 and dual strainer cleaning.