Comprehensive Maintenance Schedule for the Suzuki Boulevard M50
The Suzuki Boulevard M50, or Intruder M800 outside North America, is a popular mid-size V-twin cruiser motorcycle. It was first introduced in 2005 and received a major update in 2010. Riders love the M50 for its classic cruiser styling, comfortable ride, ample low-end torque from the fuel-injected 805cc engine, and low maintenance shaft drive.
Technical Specifications
2005-2009 Model
- Engine: 805cc, 4-stroke, liquid-cooled, SOHC, 45° V-twin
- Bore x Stroke: 83.0 mm x 74.4 mm
- Compression Ratio: 9.4:1
- Fuel System: Suzuki Dual Throttle Valve (SDTV) fuel injection
- Transmission: 5-speed constant mesh
- Final Drive: Shaft
- Front Suspension: Inverted telescopic, coil spring, oil damped
- Rear Suspension: Link type, coil spring, oil damped, 7-way adjustable spring preload
- Front Brake: Single hydraulic disc
- Rear Brake: Drum
- Fuel Tank Capacity: 15.5 L (4.1 US gal)
- Wet Weight: 593 lb (269 kg)
2010-Present Model
- Engine: 805cc, 4-stroke, liquid-cooled, SOHC, 45° V-twin
- Bore x Stroke: 83.0 mm x 74.4 mm
- Compression Ratio: 9.4:1
- Fuel System: Suzuki Dual Throttle Valve (SDTV) fuel injection
- Transmission: 5-speed constant mesh
- Final Drive: Shaft
- Front Suspension: Inverted telescopic, coil spring, oil damped
- Rear Suspension: Link type, coil spring, oil damped, 7-way adjustable spring preload
- Front Brake: Single hydraulic disc
- Rear Brake: Single hydraulic disc
- Fuel Tank Capacity: 15.5 L (4.1 US gal)
- Wet Weight: 593 lb (269 kg)
Fluid Specifications
Engine Oil:
- Type: SAE 10W-40, API SF/SG or SH/SJ with JASO MA
- Oil Capacity: 3.2 L (3.4 US qt) with filter
Final Gear Oil:
- Type: SAE 90 hypoid gear oil, API GL-5
- Oil Capacity: 200-220 mL
Coolant:
- Use an anti-freeze/coolant compatible with an aluminum radiator, mixed with distilled water only, at a 50:50 ratio
Fuel:
- Unleaded gasoline, pump octane number of 87 or higher
Maintenance Schedule
| Interval | Items |
|---|---|
| First 600 mi (1,000 km) or 1 month | – Replace engine oil and filter |
| Every 4,000 mi (6,400 km) or 6 months | – Replace engine oil and filter |
| Every 7,500 mi (12,000 km) or 12 months | – Replace air cleaner element – Check valve clearance – Check spark plugs – Check fuel hose – Check clutch hose – Check brake fluid – Check brake hose – Check tire pressure and tread wear – Lubricate pivots, cables, and controls |
| Every 10,000 mi (16,000 km) | – Replace final gear oil |
| Every 14,500 mi (24,000 km) or 24 months | – Replace coolant – Replace spark plugs – Replace fuel filter – Check valve clearance – Check PAIR (air supply) system – Check evaporative emission control system (CA model only) |
Frequently Asked Questions
- What type of oil should I use in my Suzuki Boulevard M50?
Use SAE 10W-40 engine oil with an API classification of SF/SG or SH/SJ and JASO MA rating. - How often should I change the oil on my M50?
Suzuki recommends changing the engine oil and filter every 4,000 miles (6,400 km) or 6 months, whichever comes first. - What is the valve clearance specification for the Boulevard M50?
The intake valve clearance should be 0.10-0.20 mm (0.004-0.008 in), and the exhaust valve clearance should be 0.18-0.28 mm (0.007-0.011 in). Check and adjust the valve clearance every 14,500 miles (24,000 km). - What type of coolant should I use in my M50?
Use an anti-freeze/coolant compatible with an aluminum radiator, mixed with distilled water at a 50:50 ratio. Replace the coolant every 24 months or 14,500 miles (24,000 km). - How often should I replace the spark plugs on my Boulevard M50?
Replace the spark plugs every 14,500 miles (24,000 km) or 24 months. Use NGK DPR8EA-9 or DENSO X24EPR-U9 spark plugs. - What is the tire pressure specification for the M50?
The recommended tire pressure for the front tire is 33 psi (225 kPa) and 36 psi (250 kPa) for the rear tire. Check tire pressure and tread wear every 7,500 miles (12,000 km). - How often should I lubricate the drive chain on my Boulevard M50?
The M50 uses a low-maintenance shaft drive system and does not have a drive chain that requires lubrication. - What is the recommended fuel for the Suzuki Boulevard M50?
Use unleaded gasoline with a pump octane number of 87 or higher. Avoid gasoline containing ethanol if possible. - How often should I change the air filter on my M50?
Replace the air cleaner element every 7,500 miles (12,000 km) or 12 months, whichever comes first. - What is the battery voltage and capacity for the Boulevard M50?
The M50 uses a 12V, 10Ah (YTX12-BS) battery. Check the battery terminals for corrosion and ensure the electrolyte level is between the upper and lower level lines at each service interval.
By following this maintenance schedule and using the recommended fluids and parts, your Suzuki Boulevard M50 will provide reliable performance and enjoyment for many miles to come.
Sources of this Blog Post
General Information and Introduction
- Wikipedia – Suzuki Boulevard M50: Provides an overview of the Suzuki Boulevard M50, detailing its features, specifications, and model variations.
Technical Specifications
- Autoevolution – Suzuki Boulevard M50: Offers detailed specifications and model information for the Suzuki Boulevard M50, including engine, transmission, and braking systems.
- Bikez – 2005 Suzuki Boulevard M50: Technical specifications for the 2005 Suzuki Boulevard M50, covering engine, suspension, and weight.
- Webike Germany – Suzuki Boulevard M50 / Intruder M800: Detailed specifications and maintenance information for the Suzuki Boulevard M50 (Intruder M800).
Maintenance Schedule and FAQs
- Maintenance Schedule – Suzuki Boulevard M50: Detailed maintenance schedule for the Suzuki Boulevard M50, including service intervals and parts.
- Manualslib – Suzuki Boulevard M50 Manual: Comprehensive manual providing maintenance and service procedures for the Suzuki Boulevard M50.
- Amsoil – 2009 Suzuki Boulevard M50: Recommended fluids and maintenance tips for the 2009 Suzuki Boulevard M50.
- Rider Forums – Suzuki Boulevard M50 Discussion: Community forum discussing maintenance tips and common issues for the Suzuki Boulevard M50.
- Common Tread – Basic Motorcycle Maintenance Checklist: General motorcycle maintenance guidelines that apply to the Suzuki Boulevard M50.
These sources were used to compile an accurate and comprehensive maintenance schedule and specifications for the Suzuki Boulevard M50, ensuring reliable information for owners and enthusiasts.