SR4 Max Maintenance Schedule & Torque Reference
Periodic-maintenance interval table, fluids and key fastener torques for the SR4 Max CVT scooter, from the owner's manual and the KS350 engine repair manual. Services run every 5,000 km, with a CVT belt replacement at 20,000 km.
On this page
Unresolved oil specification: The owner's manual p. 61 gives 1.8 L of SAE 5W-40, SJ or above. The specification table on Owner's manual p. 74 gives 1.9 L of 10W-40 SL. The KS350 engine repair manual specifies SAE 5W/40, API SJ / JASO MA2 on p. 8. On p. 19 it lists the capacity by job: 1.7 L after draining, 1.8 L after replacing the oil filter, 1.9 L after disassembling the crankcase. Both capacity figures in the owner's manual appear in that list. The oil grade still differs between 5W-40 SJ and 10W-40 SL. We cannot verify which is correct.
Service cadence
- First service: 1,000 km
- Thereafter: every 5,000 km
The owner's manual periodic maintenance table p. 76, has columns at 1,000, 5,000, 10,000, 15,000, 20,000 and 25,000 km, and says to use time or mileage, whichever is reached first. The only time limits in that table are 1 year for engine oil and the secondary oil filter, and 2 years for coolant and brake fluid.
Month limits for the service visits (1,000 km or 3 months, then 5,000 km or 12 months) appear only in the service record pages of the Hungarian owner's manual (machine translated), p. 90. The English manual gives no month limit for the visits themselves.
The KS350 engine repair manual p. 13, has its own engine-only table with columns at 1,000 km and then every 10,000 km up to 100,000 km. It replaces engine oil and oil filter annually or every 10,000 km.
Periodic maintenance table
From the owner's manual p. 76. Rows where another manual gives a different action are listed under "Where the manuals give different actions" below.
Symbol legend: I inspect (adjust if needed) · C clean · R replace · A adjust · L lubricate · \ no action.
| Item | 1k | 5k | 10k | 15k | 20k | 25k |
|---|---|---|---|---|---|---|
| Engine oil (also every 1 year) | R | \ | R | \ | R | \ |
| Secondary oil filter (also every 1 year) | R | \ | R | \ | R | \ |
| Engine oil level | I | I | I | I | I | I |
| Fuel pipeline seal | \ | I | I | I | I | I |
| Fuel pump | \ | \ | I | \ | I | \ |
| Throttle set & crankcase breathing tube | \ | \ | C | \ | C | \ |
| Coolant level | I | I | I | I | I | I |
| Coolant (also every 2 years) | \ | \ | \ | \ | \ | \ |
| CVT wash and inspection | \ | \ | I | \ | I | \ |
| CVT belt | \ | \ | \ | \ | R | I |
| Valve clearance | \ | \ | \ | \ | I | \ |
| Spark plug | \ | \ | \ | \ | R | \ |
| Air filter element | \ | \ | R | \ | R | \ |
| Oil in gear box | \ | \ | \ | \ | \ | \ |
| Throttle operating system | A | A | A | A | A | A |
| Steering bearing lubrication | I | \ | L | I | L | I |
| Front & rear wheel bearing | \ | L | L | L | L | L |
| Main stand & side stand shafts | \ | L | L | L | L | L |
| Brake lever shaft | \ | L | L | L | L | L |
| Engine holder pivots | \ | L | L | L | L | L |
| Battery voltage | \ | I | I | I | I | I |
| Brake oil tube seal | I | I | I | I | I | I |
| Brake fluid (also every 2 years) | I | I | I | I | I | I |
| Brake fluid level | I | I | I | I | I | I |
| Brake pads (front + rear) | I | I | I | R | I | I |
| Front & rear brake switch | I | I | I | I | I | I |
| Fuel evaporation system | I | I | I | I | I | I |
| Routine check of key fastening parts (see torque table) | I | I | I | I | I | I |
| Front & rear shock absorber leakage | I | I | I | I | I | I |
Where the manuals give different actions
- Brake pads: the owner's manual p. 76, replaces the pads at 15,000 km and inspects them at the other services. The Hungarian owner's manual (machine translated), p. 83, inspects them at every service up to 30,000 km and lists no replacement. We cannot verify which is correct.
- CVT belt: all three manuals replace the belt at 20,000 km. The inspection points differ. The owner's manual p. 76, inspects at 25,000 km. The Hungarian owner's manual (machine translated), p. 83, inspects at 10,000 and 30,000 km. The KS350 engine repair manual p. 13, replaces it every 20,000 km, and a separate row (*6) cleans and inspects the CVT every 10,000 km. We cannot verify which inspection pattern is correct.
- Throttle set: the owner's manual p. 76, cleans the throttle set and crankcase breathing tube at 10,000 and 20,000 km. The EFI workshop manual p. 8 says to wash the throttle valve set every 6,000 km. The KS350 engine repair manual p. 13, cleans the crankcase breather tube every 10,000 km. We cannot verify which interval is correct.
- Gearbox oil: the owner's manual p. 76 lists "Oil in gear box" with no action at any interval. The Hungarian owner's manual (machine translated), p. 83, replaces it at 10,000 and 20,000 km. The KS350 engine repair manual p. 8 gives a gearbox oil capacity of 0.25 L. We cannot verify which schedule is correct.
Items worth knowing about
- CVT belt is replaced at 20,000 km. The KS350 engine repair manual p. 17 says to check the active pulley parts and driven pulley components when the belt is replaced. Belt width standard is 25.6 to 26.0 mm with a use limit of 25.0 mm on the same page. Roller weights are 20 g with a service limit of 18 g Engine manual p. 9.
- CVT wash and inspection at 10,000 and 20,000 km. The owner's manual p. 75 says maintenance should be more frequent than the table when the scooter is often used in bad conditions, and that special maintenance is needed after long riding in sand or mud.
- Valve clearance inspection and spark plug replacement are at 20,000 km.
- Engine oil and secondary oil filter are replaced at 1,000, 10,000 and 20,000 km, or every year. The 5,000 and 15,000 km services do not include an oil change.
Engine and fluid specifications
- Valve clearance: intake 0.16 to 0.24 mm, exhaust 0.34 to 0.42 mm Engine manual p. 15. The KS350 manual says to check below 35 °C.
- Spark plug: LMAR8J-9E (Owner's manual p. 74; NGK per Engine manual p. 7).
- Spark plug gap, unresolved: 0.8 to 1.0 mm in the owner's manual p. 74. 0.80 to 0.90 mm in the KS350 engine repair manual p. 7. We cannot verify which is correct.
- Idle speed: 1,450 ± 100 rpm Engine manual p. 20.
- Coolant capacity: 1.4 L Owner's manual p. 64. Replace every 2 years.
- Coolant type, unresolved: the owner's manual p. 64 specifies VOGE coolant, ethylene glycol, freezing point -45 °C. The KS350 engine repair manual recommends BASF Glysantin G48-24 on p. 8. We cannot verify which is correct.
- Brake fluid: DOT4, replace after 2 years Owner's manual p. 65.
- Tyre pressure (cold): front 220 kPa solo, 240 kPa with passenger. Rear 240 kPa solo, 260 kPa with passenger Owner's manual p. 66.
Key fastener torques
From the "Routine check table for key fastening parts", owner's manual p. 77.
| No. | Fastener | Thread | Qty | Torque |
|---|---|---|---|---|
| 1 | Front wheel axle | M12 | 1 | 32 N·m |
| 2 | Front wheel axle lock-up | M8 | 2 | 19 N·m |
| 3 | Front brake caliper to shock absorber | M8 | 4 | 32 N·m |
| 4 | Right body of rear fork to engine | M10 | 2 | 38 N·m |
| 5 | Engine to frame | M16 | 1 | 180 N·m |
| 6 | Engine damping jacket to frame | M12 | 4 | 100 N·m |
| 7 | Front body of engine holder to frame | M12 | 1 | 110 N·m |
| 8 | Front body to main body of engine holder | M14 | 2 | 180 N·m |
| 9 | Rear shock absorber fastening | M10 | 4 | 38 N·m |
| 10 | Rear wheel locking nut | M16 | 1 | 115 N·m |
Rows 5 and 8 are 180 N·m. Check that your torque wrench covers that range.
Other torques in the owner's manual: mirror-rod nut 3, 15 to 20 N·m, and mirror-base nut 5, 22 N·m Owner's manual p. 36. Fuel tank cap bolt, 2 N·m Owner's manual p. 20.
Engine torques (KS350 engine repair manual)
From the KS350 engine repair manual p. 12, unless noted.
| Fastener | Torque |
|---|---|
| Crankcase oil drain plug bolt | 38 ± 5.7 N·m |
| Gearbox oil drain plug bolt | 38 ± 5.7 N·m |
| Engine oil filter | 11 ± 1 N·m |
| Engine oil filter pipe joint | 28 ± 3 N·m Engine manual p. 19 |
| Spark plug | 12 ± 1 N·m |
| Front CVT nut | 100 ± 7 N·m |
| CVT friction disc nut | 100 ± 7 N·m |
Break-in (first 1,000 km)
From the owner's manual p. 39-40, unless noted.
- First 1,000 km: avoid sudden acceleration or braking except in an emergency. No fast riding or heavy loads.
- First 200 km: corner at low speed until the tyre tread is worn in. No sudden acceleration, turning or braking.
- First 500 km: the new brake pads have not reached full friction, so you may need to pull the brake lever harder.
- Economic speed: the manual gives 50 km/h and says raising speed from 60 to 90 km/h increases fuel consumption by 86% Owner's manual p. 49.
- First 24 hours after a tyre repair: maximum 80 km/h Owner's manual p. 67.
The owner's manual suggests that periodic maintenance is done by a VOGE dealer Owner's manual p. 75.
Specifications quick reference
From the owner's manual p. 74, unless noted.
- Top speed: 129 km/h in the owner's manual. The Hungarian owner's manual (machine translated) gives more than 127 km/h on p. 6.
- Peak torque and power: uncertain. The owner's manual gives 35 N·m at 6,000 rpm and 25 kW at 7,500 rpm. The KS350 engine repair manual p. 7 gives 30 N·m at 6,000 rpm and 21.25 kW at 7,500 rpm, as does the Hungarian owner's manual (machine translated), p. 6. We cannot verify which is correct.
- Fuel consumption: 3.47 L/100 km.
- Fuel tank: uncertain. The owner's manual p. 20 gives 12.8 L, and PDF page 74 prints 1.3 L. The Hungarian owner's manual (machine translated) gives 12.8 L on p. 22 and 13 L on p. 6. We cannot verify which is correct.
- Clutch type: dry centrifugal.
Source
- Voge SR4 Max Owner's Manual (English edition)
- KS350 engine repair manual
- EFI workshop manual
- Hungarian owner's manual, machine translated