2004 Suzuki RM-Z250

NEW MODEL: 2004 SUZUKI RM-Z250

[IMAGE 1]

Introducing the all-new 2004 Suzuki RM-Z250 . The RM-Z250 was designed in conjunction with Kawasaki Heavy Industries, LTD and is Suzuki’s first all-new four-stroke, 250cc motocross machine. The ’04 Suzuki RM-Z250 features a compact, lightweight, and powerful Suzuki designed four-stroke engine combined with a strong and lightweight chassis, high performance Kayaba suspension, and many other quality features to create the ultimate 250cc four-stroke motocross machine.

[IMAGE 2]

ENGINE

  • Compact 249cc, 4-stroke, liquid-cooled, DOHC, 4-valve engine – designed for easy-to-ride 4-stroke power with optimum balance of crank inertia and engine brake performance (no counterbalancer system required)
  • Advanced 4-valve cylinder head design with narrow 25-degree included valve angle and titanium valves (31mm intake, 25mm exhaust) create a compact combustion chamber for high combustion efficiency
  • Cam profiles selected for a wide powerband with strong peak power – camshafts are carburized for durability and operate steel alloy valve tappets
  • Plated aluminum alloy cylinder for increased durability, optimum engine cooling and operating temperature
  • Forged, 2-ring piston designed for maximum oil retention and minimal wear, plus tin plating for added durability
  • Keihin FCR37 carburetor with throttle position sensor and accelerator pump for increased throttle response, plus a hotstart circuit for quick engine restarts
  • Automatic decompression system for easy kick starting — simple, light weight and designed for reliable operation, plus optional cable set-up for manual operation
  • Semi-dry-sump lubrication system features separate oil chambers for the transmission and crankshaft using the transmission as the oil sump, allowing low crankshaft placement, reduced engine height and a low center of gravity.
  • Internal reed-valve between oil chambers relieves pressure from the crank chamber to reduce mechanical loss and improve high rev performance
  • Internal oil passageways to the top end eliminate the weight and complexity of external oil lines
  • AC-CDI ignition system with two ignition maps automatically increases engine idle speed to reduce engine brake effect
  • Five-speed transmission featuring a ratchet-type shift mechanism designed for light shifting effort, plus compensates for differences in shift force used by different riders
  • Thin-walled crankcase construction and magnesium valve, generator and outer clutch covers minimize overall engine weight
  • One-piece water pump and oil filter cover helps minimize engine size and weight
  • Lightweight exhaust system features a titanium and stainless steel construction, plus a repackable aluminum/stainless steel muffler
  • Aluminum skid plate with plastic side guards and aluminum engine mounting plates.

** SPECIFICATIONS NOT FINAL

RM-Z250 (K4) AT A GLANCE

d width=”50%”>Front Brake:
Suggested Retail: $5,599.00
Engine Type: Four-stroke, single cylinder, liquid-cooled
Bore and Stroke: 77.0 mm x 53.6 mm
Single Hydraulic Disc
Rear Brake: Single Hydraulic Disc
Wheelbase: TBA
Dry Weight: TBA

CHASSIS

  • Lightweight twin-spar frame with D-shaped upper spars that contribute to a slim design and improved position and rider mobility
  • Slim new bodywork allows greater freedom of movement for the rider, and includes a 7.5-liter fuel tank, flat-shape seat with slip-resistant cover, long rear fender, narrow radiator shrouds and right-side cover with built-in exhaust heat shield
  • Aluminum triple clamps with rigid handlebar-mount and tapered steering stem for minimal weight
  • New Kayaba 48mm inverted, bladder-style front fork has a special valve system to optimize internal pressure and damping performance throughout the stroke — includes compact axle brackets and fork tube guards
  • Kayaba reservoir-type rear shock absorber — includes drain bolt for shock oil replacement and upper shock mount positioned for easy access to the carburetor
  • New rear linkage system (similar to RM125/250), places the suspension load on the swingarm instead of the frame to reduce frame weight, and allows smoother movement of the rear shock and linkage for improved rear wheel traction
  • Aluminum swingarm with tapered hydro-formed beams, forged axle holder, plus cast and forged linkage components — all designed for strength and minimal weight
  • Front disc brake system consists of a dual-piston caliper with 27mm pistons, master cylinder with large, 11mm piston and thin Kevlar brake line for reduced weight and progressive brake feel
  • Lightweight rear brake system includes a dual piston caliper with 25.4mm pistons and durable forged brake pedal

2004 RM-Z250 SPECIFICATIONS**

DIMENSIONS AND DRY MASS

Overall length: TBA
Overall width: TBA
Overall height: TBA
Wheelbase: TBA
Ground clearance: TBA
Seat height: TBA
Dry mass: TBA

ENGINE

Type: Liquid-cooled, 4-stroke single
Bore: 77.0 mm
Stroke: 53.6 mm
Piston displacement: 249cc
Compression ratio: TBA
Carburetor: Keihin FCR37
Air cleaner: Foam element
Starter system: Primary kick
Lubrication System: Forced Lubrication – semi-dry sump

TRANSMISSION

Clutch: Wet multi-plate, manual
Transmission: 5-speed return
Gearshift pattern: 1 down, 5 up
Primary ratio: 3.350 (67/20)
Gear ratios: 1st 2.142 (30/14)
2nd 1.785 (25/14)
3rd 1.444 (26/18)
4th 1.200 (24/20)
5th 1.052 (20/19)
Final ratio: 3.692 (48/13)

CHASSIS

Frame: Double-main-tube, high-tensile steel (D-shaped tubeif”>Dry mass: TBA

ENGINE

Type: Liquid-cooled, 4-stroke single
Bore: 77.0 mm
Stroke: 53.6 mm
Piston displacement: 249cc
Compression ratio: TBA
Carburetor: Keihin FCR37
Air cleaner: Foam element
Starter system: Primary kick
Lubrication System: Forced Lubrication – semi-dry sump

TRANSMISSION

Clutch: Wet multi-plate, manual
Transmission: 5-speed return
Gearshift pattern: 1 down, 5 up
Primary ratio: 3.350 (67/20)
Gear ratios: 1st 2.142 (30/14)
2nd 1.785 (25/14)
3rd 1.444 (26/18)
4th 1.200 (24/20)
5th 1.052 (20/19)
Final ratio: 3.692 (48/13)

CHASSIS

Frame: Double-main-tube, high-tensile steel (D-shaped tubes for upper rails)
Front suspension: 48mm Inverted, cartridge type, 16 way compression & 16 way rebound damping
Rear suspension: Link type, adjustable preload, 16 way compression & 16 way rebound damping
F. suspension stroke: 300 mm
R. wheel travel: 310 mm
Rake: TBA
Trail: TBA
Steering angle: 42° each side
Turning radius: TBA
Front brake: Single, semi-floating 250mm disc
Rear brake: Single 240mm disc
Front tire size: 80/100-21 51M
Rear tire size: 100/90-19 57M

ELECTRICAL

Ignition type: Digital AC-CDI
Ignition timing: TBA
Spark plug: NGK

CAPACITIES

Fuel tank: 7.5 L
Transmission oil: TBA
Engine coolant: TBA

American Suzuki Motor Corporation makes every effort to present the most current specifications.

or upper rails) Front suspension: 48mm Inverted, cartridge type, 16 way compression & 16 way rebound damping Rear suspension: Link type, adjustable preload, 16 way compression & 16 way rebound damping F. suspension stroke: 300 mm R. wheel travel: 310 mm Rake: TBA Trail: TBA Steering angle: 42° each side Turning radius: TBA Front brake: Single, semi-floating 250mm disc Rear brake: Single 240mm disc Front tire size: 80/100-21 51M Rear tire size: 100/90-19 57M

ELECTRICAL

Ignition type: Digital AC-CDI
Ignition timing: TBA
Spark plug: NGK

CAPACITIES

Fuel tank: 7.5 L
Transmission oil: TBA
Engine coolant: TBA

American Suzuki Motor Corporation makes every effort to present the most current specifications.

Engine coolant: TBA

American Suzuki Motor Corporation makes every effort to present the most current specifications.