Service specs

KYMCO Xciting 400i Service Specs: Part Numbers and Intervals

Battery, spark plug, oil, filters, belt and torque for the KYMCO Xciting 400i: KYMCO service data with the genuine part number and diagram for each.

Updated October 27, 2026 By Michal B., KYMCO parts specialist 4 min read16 genuine part numbers
KYMCO Xciting 400i

This is the service sheet for the KYMCO Xciting 400i (4-stroke single, liquid cooled, 399 cc, fuel injected). It lists the battery, spark plug, filters, belt and the rest, each figure with the genuine KYMCO part number for the model years in our catalog (2018) and the diagram the part is drawn on. The figures are KYMCO service data from the KYMCO Xciting 400i ABS service manual (2018). When this page and your own manual disagree, the manual wins.

  • Engine4-stroke singleliquid cooled, 399 cc, fuel injected
  • Engine oilSAE 5W-501.3 L at an oil change, 1.5 L dry
  • Spark plugCR7Egap 0.6-0.7 mm
  • BatteryYTX14-BS12 V 12 Ah

What to know before you order

The Xciting 400i uses a cartridge oil filter plus a strainer screen: the filter goes with every oil change at 5,000 km, and the screen is cleaned at 5,000 km and replaced at 10,000 km. Its battery is the larger YTX14-BS (12 V 12 Ah), and the drive belt is a 20,000 km replacement. Coolant lasts to 35,000 km, but brake fluid is due every 10,000 km.

Xciting 400i service specs at a glance

Item Spec Genuine part number Diagram
Batteryall models 12 V 12 Ah; charge at 1.2 A for 5-10 h 31500-LBA2-90A on the factory drawing31500-LBA2-90A
YTX14-BS
F11 Battery
Spark plugall models gap 0.6-0.7 mm 98059-57916-00 on the factory drawing98059-57916-00
CR7E
E02 Cylinder Head Cover · Cylinder Head
Engine oil SAE 5W-50; 1.3 L at an oil change, 1.5 L dry figure only
Oil filterall models cartridge filter plus strainer screen 1541A-LEH6-E00 on the factory drawing1541A-LEH6-E00
Oil Filter Element Assembly
E01 Crank Case
Final drive oil SAE 90; 0.21 L at a change figure only
Coolant 1,700 cc total; radiator cap 0.9 kg/cm² (12.8 psi) figure only
Air filterall models replace every 5,000 km (3,100 mi) 1721A-LKF5-E01 on the factory drawing1721A-LKF5-E01
Air Cleaner Element Assembly
F13 Air Cleaner
Drive beltall models inspect every 5,000 km (3,100 mi), replace every 20,000 km (12,450 mi) 23100-LKF5-E02 on the factory drawing23100-LKF5-E02
Drive Belt (N-6M)
E06 Drive Pulley
Brake padsall models pad lining 5.4 mm new; front disc 3.0 mm minimum, rear disc 4.0 mm minimum 43105-LKF5-305 on the factory drawing43105-LKF5-305
Pad Set (2018)
45105-LKF5-305 on the factory drawing45105-LKF5-305
Pad Set (2018)
F08 Rear Wheel
Tires front 120/70-15, rear 150/70-14, tubeless; 28.4 / 32 psi 42710-LKF5-E00 on the factory drawing42710-LKF5-E00
Rear Tire Assembly (150/70-14 66S) (2018)
44710-LKF5-E00 on the factory drawing44710-LKF5-E00
Front Tire Assembly (120/70-15 56S) (2018)
F08 Rear Wheel
Bulbs and fuses headlight 12 V 35/35 W x 2; LED stop/tail; fuses 10, 15 and 30 A 044.698 on the factory drawing044.698
Position Light Bulb 12V5W (2018)
34901-KFA6-900 on the factory drawing34901-KFA6-900
Head Light Bulb (Hsi 12V 35/35W) (2018)
34905-LBA7-E00 on the factory drawing34905-LBA7-E00
Winker Bulb 12V10W (2018)
44.698 on the factory drawing44.698
Position Light Bulb 12V5W (2018)
F18 Light Tail

The diagrams behind this sheet

Each row of the table points at the factory drawing its part sits on. Open one to see the callout number, the quantity and the gaskets and bolts around it.

Xciting 400i maintenance intervals

Whichever comes first, distance or time. The first service is the one riders skip and the one that matters most on a new or rebuilt engine.

Item Interval
Engine oil and oil filter replace at 1,000 km (600 mi), then every 5,000 km (3,100 mi)
Oil strainer screen clean at 5,000 km (3,100 mi), replace every 10,000 km (6,200 mi)
Final drive oil replace at 1,000 km (600 mi), then every 10,000 km (6,200 mi)
Air filter replace every 5,000 km (3,100 mi)
Spark plug replace every 10,000 km (6,200 mi)
Valve clearance adjust every 10,000 km (6,200 mi)
Drive belt replace every 20,000 km (12,450 mi)
Brake fluid replace every 10,000 km (6,200 mi)
Coolant replace at 35,000 km (21,750 mi)

Torque for the parts you replace

Clean, dry threads unless the row says otherwise. Aluminium cases strip long before a steel bolt complains, so use a torque wrench on the drain bolt and the plug.

Fastener N·m ft-lb
Spark plug 15-20 11-14
Engine oil drain bolt 20-29 14-22
Oil strainer cap bolt 9.8 7.2
Final drive check and drain bolts 7.8-12 5.8-8.7
Drive face nut 78-85 57-63
Clutch outer nut 56-62 41-46
Front axle bolt 15-25 11-18
Rear axle nut 130-150 96-111
Brake caliper bolts 30-40 22-30

Electrical test values

Measured at about 20 °C with the connector unplugged. A reading far outside the range points at the part; a reading inside it sends you back to the wiring and the connectors.

Part Test value Genuine part number
Ignition coil primary 3.57-4.83 Ω; secondary 15-19 kΩ with the plug cap, 10.42-14.49 kΩ without 3051A-LKF5-E00 on the factory drawing3051A-LKF5-E00
Ignition Coil Assembly
Crank position sensor 100-130 Ω not sold separately in our catalog; see the stator row
Stator between the yellow wires, 0.1-0.7 Ω 31100-LKF5-E01 on the factory drawing31100-LKF5-E01
Ac Gen Assembly (2018)
31120-LKF5-E01 on the factory drawing31120-LKF5-E01
Stator Complete (D402) (2018)

Every Xciting 400i part, drawn on its factory diagram: KYMCO Xciting 400i parts diagrams.

Which model year do I have?

The year decides which number is yours where a row lists more than one. Decode your VIN with the VIN lookup, or read the model code on the frame plate, then open that year's diagrams from the model list.

Find your KYMCO and see every part on its drawingType your VIN or pick the model, year and colour, then click the part on the factory diagram.
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