KYMCO AK 550 Service Manual page 19

1.Quick Reference
AK 550
ENGINE
Throttle grip free play 2 ~ 6 mm
Spark plug NGK: CR7E
Spark plug gap 0.7 mm ~ 0.8 mm
Valve clearance IN: 0.175 mm EX: 0.225 mm
Idle speed 1200 ± 100 rpm
Compression ratio 11 ± 0.2
Ignition timing ECU
Coolant type Liquid cooling
Engine oil capacity:
At disassembly 3 Liter
At change 2.6 Liter
Coolant capacity:
Radiator with cool coolant 1200 cc
Reserve tank 300 cc
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