yz400 carb

dose any one know what size(mm)carb is on a 99 yz400


I hope this answers most of your questions about the 400

39mm Keihin carburetorEngine Liquid cooled, 4-stroke, 5 valve, dual overhead cam

Bore and Stroke 92.0mm x 60.1mm

Displacement 399cc

Engine Compression

Ratio 12.5:1

Carburetion Keihin 39mm FCR, accelerator pump, throttle positioning sensor

Ignition CDI

Fuel 92 Octane

Oil Capacity 1600cc

Transmission 5 - speed

1st 1.929:1

2nd 1.563:1

3rd 1.278:1

4th 1.091:1

5th 0.952:1

Wheelbase 58.3"

Overall Length 85.3"

Ground Clearance 14.7"

Seat Height 38.5"

Overall Height 50.5"

Rake and Trail 27.2 degrees/4.7"

Weight 233 lbs.

Forks Inverted KYB

Fork Travel 11.8"

Fork Spring Rate 0.45kg/mm

Rear Suspension KYB Shock

Shock Travel 12.4""

Shock Spring Rate 5.4kg/mm

Tire Sizes:

Front 80/100 x 21

Rear 110/90 x 19

Fuel Tank

Capacity 2.1 gallons

ya that helps,im putting the carb on drz sm


Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now