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
Carburetion Keihin 39mm FCR, accelerator pump, throttle positioning sensor
Fuel 92 Octane
Oil Capacity 1600cc
Transmission 5 - speed
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
Front 80/100 x 21
Rear 110/90 x 19
Capacity 2.1 gallons
ya that helps,im putting the carb on drz sm
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