JASO MA2 Tube-Type Rim (Inner Tube) ARCHIVE SPEC SHEET

Royal Enfield Bullet 350 (UCE) — OEM Fluid, Tire Pressure & Maintenance Specs

346cc Air-Cooled Single OHV Pushrod UCE Twinspark · Source: Royal Enfield Bullet 350 (UCE) (2010–2022) Official Owner’s Manual Maintenance Specifications

OEM SPECIFICATION SUMMARY

According to the Royal Enfield Bullet 350 (UCE) (2010–2022) Official Owner’s Manual Maintenance Specifications, the 2010–2022 Royal Enfield Bullet 350 (UCE) (chassis ME3U3B5C) requires 2.3 L (2.43 US qt) of SAE 15W-50 (JASO MA2, API SL (RE Liquid Gun 15W-50)) engine oil for a drain-only change and 2.45 L (2.59 US qt) with filter service (RE 500616 / HF156). Standard solo cold tire pressure is 140 kPa / 1.40 bar / 20 PSI front (3.25-19 54P) and 210 kPa / 2.10 bar / 30 PSI rear (3.25-19 54P), paired with 2× Bosch UR5DDC + W7DC spark plug(s) and a 12N5-3B / YTX9-BS battery.

Engine Oil (With Filter)
2.45 L (2.59 US qt)
SAE 15W-50 · JASO MA2
Drain only: 2.3 L (2.43 US qt)
Cold Tire Pressure (Solo)
F 20 / R 30 PSI
F 140 kPa (1.40 bar)
R 210 kPa (2.10 bar)
OEM Spark Plug
Bosch UR5DDC + W7DC ×2
Gap: 0.7–0.8 mm
Seat · Wet Weight · Range
800 mm · 186 kg
31.5 in · 410 lbs
Est. Range: ~500 km (311 mi)

1. Engine Lubrication, Filter & Clutch Specifications

Clutch Architecture Wet Multi-Plate Manual Clutch NEVER use JASO MB
Recommended Viscosity & Grade SAE 15W-50 · JASO MA2 · API SL (RE Liquid Gun 15W-50)
Oil Volume (Drain / With Filter / Overhaul) • Drain only: 2.3 L (2.43 US qt)
• With filter/strainer: 2.45 L (2.59 US qt)
• Complete dry overhaul: 2.75 L (2.91 US qt)
OEM Oil Filter Code & Type RE 500616 / HF156
Correct Oil Level Check Method Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass
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: 3.25-19 54P · Rear: 3.25-19 54P (Tube-Type Spoke Rim)
Cold Tire Pressure — Solo Riding Front: 140 kPa / 1.40 bar / 20 PSI
Rear: 210 kPa / 2.10 bar / 30 PSI
Cold Tire Pressure — 2-Up / Loaded Touring Front: 155 kPa / 1.55 bar / 22 PSI
Rear: 225 kPa / 2.25 bar / 33 PSI
OEM Spark Plug & Quantity Bosch UR5DDC + W7DC × 2 (Gap: 0.7–0.8 mm)
OEM Battery Code & Rating 12N5-3B / YTX9-BS (12V 5.0–8.0Ah)
Final Drive Maintenance 520 Sealed X-Ring Chain — Maintain 25–35 mm slack and clean/lubricate regularly
Brake Fluid & Coolant DOT 4 · Air/Oil-Cooled Engine (No liquid coolant)

3. Ergonomics, Range & Scheduled Service Intervals

Displacement · Max Power · Peak Torque 346 cc · 19.8 hp @ 5,250 rpm · 28 N·m (20.7 lb-ft) @ 4,000 rpm
Seat Height & Wet Curb Weight 800 mm (31.5 in) · 186 kg (410 lbs)
Fuel Tank & Est. Real-World Range 13.5 L (3.6 US gal) · ~37 km/L → ~500 km (311 mi)
OEM Scheduled Maintenance Intervals • First Break-In: 500 km
• Engine Oil / Filter: 6,000 km / 6,000 km
• Air Filter / Spark Plug: 10,000 km / 20,000 km
• Valve Clearance Check: 24,000 km

4. Generation Cutoffs & Real-World Wrenching Gotchas

Model-Year & Chassis Generation Notes

Traditional heavy-flywheel UCE Standard 350 running matching 19-inch front and rear tube-type spoke wheels for unmistakable low-RPM thump.

Oil & Clutch Mechanical Engineering Note

Requires 2.45 L of SAE 15W-50 JASO MA2 oil with paper element 500616 (HF156) to keep its hydraulic pushrod tappets quiet.

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