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Model Type
Standard
Model Type
Youth
MSRP
$5,990
MSRP
$1,440
Warranty
12
Warranty
3
Insurance
Insurance
Finance
Finance
Generic Type (Primary)
Standard
Generic Type (Primary)
Youth
Manufacturer Country
Japan
Manufacturer Country
Japan
Introduction Year
2015
Introduction Year
-
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
-
Parent Company
Yamaha
Parent Company
Yamaha
Display Name
SR400
Display Name
PW 50
Year
2016
Year
2016
Make
Yamaha
Make
Yamaha
Engine Type
Single-Cylinder
Engine Type
Single-Cylinder
Cylinders
1
Cylinders
1
Engine Stroke
4-Stroke
Engine Stroke
2-Stroke
Cooling
Air
Cooling
Air
Valves
2
Valves
-
Valves Per Cylinder
2
Valves Per Cylinder
-
Valve Configuration
SOHC
Valve Configuration
Reed Valve
Bore (mm/in)
87 / 3.43
Bore (mm/in)
40 / 1.58
Stroke (mm/in)
62.7 / 2.47
Stroke (mm/in)
39.2 / 1.54
Displacement (cc/ci)
399 / 24.3
Displacement (cc/ci)
49 / 3
Compression Ratio
8.5:1
Compression Ratio
6.0:1
Starter
Kick
Starter
Kick
Fuel Requirements
Regular
Fuel Requirements
Regular
US Miles Per Gallon (Hwy)
66
US Miles Per Gallon (Hwy)
-
Fuel Type
Gas
Fuel Type
Gas / Oil Injected
Fuel Injector
Yes
Fuel Injector
No
Carburetor
No
Carburetor
Yes
Carburetion Type
Fuel Injected
Carburetion Type
Carburetor
Carburetion Brand
-
Carburetion Brand
Mikuni
Number Of Carburetors
-
Number Of Carburetors
1
Carburetor Size (mm)
-
Carburetor Size (mm)
12
Speed Governor
-
Speed Governor
Yes
Transmission Type
Manual
Transmission Type
Automatic
Number Of Speeds
5
Number Of Speeds
1
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Shaft
Reverse
No
Reverse
No
Adjustable Throttle
-
Adjustable Throttle
Standard
Wheels Composition
Steel
Wheels Composition
-
Tube / Tubeless
Tubed
Tube / Tubeless
Tubed
Chromed
Yes
Chromed
No
Front Tire Width
90
Front Tire Width
-
Front Tire Aspect Ratio
100
Front Tire Aspect Ratio
-
Front Tire Speed Rating
S
Front Tire Speed Rating
-
Front Wheel Diameter
18
Front Wheel Diameter
10
Rear Tire Width
110
Rear Tire Width
-
Rear Tire Aspect Ratio
90
Rear Tire Aspect Ratio
-
Rear Tire Speed Rating
S
Rear Tire Speed Rating
-
Rear Wheel Diameter
18
Rear Wheel Diameter
10
Front Tire (Full Spec)
90/100 18M/C 54S
Front Tire (Full Spec)
2.5 X 10
Rear Tire (Full Spec)
110/90 18M/C 61S
Rear Tire (Full Spec)
2.5 X 10
Front Wheel Width (in)
-
Front Wheel Width (in)
2.5
Rear Wheel Width (in)
-
Rear Wheel Width (in)
2.5
Front Brake Type
Hydraulic Disc
Front Brake Type
Drum
Front Brake Diameter (in/mm)
10.6 / 268
Front Brake Diameter (in/mm)
3.2 / 80
Rear Brake Type
Drum
Rear Brake Type
Drum
Rear Brake Diameter (in/mm)
5.9 / 150
Rear Brake Diameter (in/mm)
3.2 / 80
Front Suspension Type
Telescopic Fork
Front Suspension Type
Telescopic Fork
Front Travel (in/mm)
5.9 / 149.9
Front Travel (in/mm)
2.4 / 60.9
Front Adjustable Fork Pre-Load
No
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
No
Front Adjustable Rebound Damping
No
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Travel (in/mm)
4.1 / 104.1
Rear Travel (in/mm)
2 / 50.8
Rear Adjustable Shock / Spring Pre-Load
No
Rear Adjustable Shock / Spring Pre-Load
No
Rear Adjustable Rebound Damping
No
Rear Adjustable Rebound Damping
No
Number Rear Shock Absorbers
2
Number Rear Shock Absorbers
2
Air Adjustable
No
Air Adjustable
No
Front Suspension Size (in/mm)
-
Front Suspension Size (in/mm)
0.9 / 22
Steering Control
Handlebar
Steering Control
Handlebar
Length (ft)
6.84
Length (ft)
4.08
Width (in/mm)
29.5 / 749.3
Width (in/mm)
22.6 / 574
Height (in/mm)
43.1 / 1094.7
Height (in/mm)
28.1 / 713.7
Wheelbase (in/mm)
55.5 / 1409.7
Wheelbase (in/mm)
33.7 / 856
Length (ft/ft)
6
Length (ft/ft)
4
Length (ft/in)
10.1
Length (ft/in)
1
Wet Weight (lbs/kg)
384 / 174.2
Wet Weight (lbs/kg)
86 / 39
Fuel Capacity (gal/l)
3.2 / 12.1
Fuel Capacity (gal/l)
0.53 / 2
Engine Displacement to Weight (cc)
1.04
Engine Displacement to Weight (cc)
0.57
Ground Clearance (in/mm)
-
Ground Clearance (in/mm)
4.1 / 104.1
Seat Type
One-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
No
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver and Passenger
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
30.9 / 784.9
Seat Height (in/mm)
19.1 / 485.1
Number Of Seats
2
Number Of Seats
1
Grab Rail or Strap
Standard
Grab Rail or Strap
-
Frame
Steel
Frame
Steel
Body Material
Plastic
Body Material
Plastic
Hand Grips
Standard
Hand Grips
Standard
Foot Peg Location
Driver and Passenger
Foot Peg Location
Driver
Drive Shaft Guard
No
Drive Shaft Guard
No
Fork Guards
Yes
Fork Guards
No
Saddle Bag Guard
No
Saddle Bag Guard
No
Tank Guard
No
Tank Guard
No
Belt Guard
No
Belt Guard
No
Hand Guards
No
Hand Guards
No
Brush Guard
No
Brush Guard
No
Exhaust Guard
Yes
Exhaust Guard
Yes
Light Guard
No
Light Guard
No
Side Cover
Yes
Side Cover
-
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Stand Type
Center / Kick
Stand Type
Center / Kick
Handlebars
Standard
Handlebars
Standard
License Plate
Standard
License Plate
-
Adjustable
-
Adjustable
No
Chain Guard
-
Chain Guard
No
Engine Case Guard
-
Engine Case Guard
No
Heel Guards
-
Heel Guards
No
Radiator Cover
-
Radiator Cover
No
Fuel Tank Cover
-
Fuel Tank Cover
No
Top Crown
-
Top Crown
Standard
Handlebar Pads
-
Handlebar Pads
Standard
Trip Odometer
Standard
Trip Odometer
-
Speedometer
Standard
Speedometer
-
Warranty (Months/Condition)
12 / Limited
Warranty (Months/Condition)
3 / Limited
Battery Warranty (Months)
0
Battery Warranty (Months)
0
Paint
Standard
Paint
-
Metallic
-
Metallic
No
Decal Kit
-
Decal Kit
Standard
Handlebar Lock
Standard
Handlebar Lock
-
Rearview Mirrors
Standard
Rearview Mirrors
-
Underseat Storage
Standard
Underseat Storage
-
Headlight Mounts
Standard
Headlight Mounts
-
Halogen Headlight (s)
Standard
Halogen Headlight (s)
-
Headlight (s)
Standard
Headlight (s)
-
Light Type
Halogen
Light Type
-
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