Indian Scout Bobber (1133 Liquid-Cooled) — OEM Fluid, Tire Pressure & Maintenance Specs
1,133cc Liquid-Cooled 60° V-Twin DOHC 8-Valve Muscle Bobber (Unit Semi-Dry Sump) · Source: Indian Motorcycle Scout Bobber (1133cc, 2018–2024) Official Owner’s Manual
According to the Indian Motorcycle Scout Bobber (1133cc, 2018–2024) Official Owner’s Manual, the 2018–2024 Indian Scout Bobber (1133 Liquid-Cooled) (chassis Scout 69 cu-in (1133cc)/Cast-Aluminum Frame) requires 3.3 L (3.49 US qt) of SAE 15W-60 (JASO MA2, Indian Motorcycle Full Synthetic 15W-60 JASO MA2) engine oil for a drain-only change and 3.6 L (3.80 US qt) with filter service (Indian 2521421 (Kit 2880191 / HF198)). Standard solo cold tire pressure is 248 kPa / 2.48 bar / 36 PSI front (130/90B16 67H) and 276 kPa / 2.76 bar / 40 PSI rear (150/80B16 77H), paired with 2× NGK MR7F spark plug(s) and a YTX14AH-BS / Indian 12V 12Ah AGM battery.
Drain only: 3.3 L (3.49 US qt)
R 276 kPa (2.76 bar)
Est. Range: ~231 km (144 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-60 · JASO MA2 · Indian Motorcycle Full Synthetic 15W-60 JASO MA2 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.3 L (3.49 US qt) • With filter/strainer: 3.6 L (3.80 US qt) • Complete dry overhaul: 4.25 L (4.49 US qt) |
| OEM Oil Filter Code & Type | Indian 2521421 (Kit 2880191 / HF198) |
| Correct Oil Level Check Method | Upright on level ground; screw dipstick ALL THE WAY IN, then remove to read level |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 130/90B16 67H · Rear: 150/80B16 77H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 276 kPa / 2.76 bar / 40 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 276 kPa / 2.76 bar / 40 PSI |
| OEM Spark Plug & Quantity | NGK MR7F × 2 (Gap: 0.80 mm (0.030 in)) |
| OEM Battery Code & Rating | YTX14AH-BS / Indian 12V 12Ah AGM (12V 12.0Ah MF AGM) |
| Final Drive Maintenance | Indian Carbon-Fiber Reinforced Belt — Clean dry operation, zero lube |
| Brake Fluid & Coolant | DOT 4 · Indian Extended Life 50/50 Premix Antifreeze |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1133 cc · 100 hp @ 8,100 rpm · 97.7 N·m (72.1 lb-ft) @ 5,600 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 649 mm (25.6 in) · 252 kg (556 lbs) |
| Fuel Tank & Est. Real-World Range | 12.5 L (3.3 US gal) · ~18.5 km/L → ~231 km (144 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 800 km • Engine Oil / Filter: 8,000 km / 8,000 km • Air Filter / Spark Plug: 24,000 km / 32,000 km • Valve Clearance Check: 32,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
This entry covers the wildly popular 2018–2024 cast-aluminum-frame 1,133cc (69 cu-in) Scout Bobber (and 999cc Scout Sixty oil/filter specs). Note that 2025+ Scout Bobber models moved to an all-new 1,250cc SpeedPlus engine and tubular steel frame with updated service parts.
Oil & Clutch Mechanical Engineering Note
Revving past 8,000 rpm to make 100 hp, the unit-construction 1,133cc V-twin demands SAE 15W-60 JASO MA2 full-synthetic oil (~3.5–3.8 L service fill with filter 2521421). Unlike Harley, NEVER check on the sidestand—hold the Scout completely upright and thread the dipstick fully in to read!
Garage Wrenching Gotchas
- The Scout’s semi-dry-sump crankcase has TWO bottom oil drain plugs (front crankcase cavity and rear transmission cavity)—you MUST pull both plugs and replace both crush washers at every change!
- Achieving that slammed 649 mm (25.6 in) bobber stance leaves just 51 mm (2.0 in) of rear suspension travel—rise slightly on the pegs over sharp bumps or upgrade to longer-stroke piggyback shocks.
5. Frequently Asked Questions (FAQ)
Does the Indian Scout Bobber use separate primary or transmission oil like a Harley?
No—the Scout uses modern unit construction sharing one SAE 15W-60 JASO MA2 oil supply (~3.6 L refill with filter 2521421), though you must drain both bottom sump plugs.
Can I run 10W-40 or 20W-50 instead of 15W-60 in an Indian Scout Bobber?
Stick strictly to SAE 15W-60 JASO MA2 (Indian Full Synthetic, Motorex, or Motul 7100 15W-60)—the hydraulic cam-chain tensioners and high-rpm gearset rely on 60-weight hot film strength.
What is the factory cold tire pressure for the Indian Scout Bobber?
Cold inflation is 36 PSI (248 kPa) front (130/90B16) and 40 PSI (276 kPa) rear (150/80B16).