View Full Version : Stuff Needed to convert a 400 Carb on a 300
96FMF300EX
01-05-2003, 09:12 AM
Can anyone tell me what i would to do a good conversion from a stock 300 Carb to a 400. i know i need a 350X Airboot but is that it? And i jsut got a carb off ebay its a 400 and it has a jet kit will i need to get the stock jetting or will i be able to go with the jetting in the carb? Thanks for the help.
330exracer122
01-05-2003, 09:27 AM
actaully all u need is the carb the 350x airboot just gives u more airflow. o yea i have a 400 carb without the 350x boot
96FMF300EX
01-05-2003, 09:57 AM
What kind of power gains am i looking about if i convert to a 400EX Carb that is jetted?
330exracer122
01-05-2003, 12:38 PM
major topend gain
HiperEX
01-05-2003, 05:39 PM
so this will give u more speed or just get you there quicker?
OutlawEX
01-05-2003, 05:49 PM
Originally posted by HiperEX
so this will give u more speed or just get you there quicker?
Top End=more speed
TRX_Thumper
01-18-2003, 08:23 PM
i need some suggestions on this...first of all there is no way the 400ex carb will work with the 350x intake...its designed for a 31mm carb and the 400's is 35.5......and also my 400 carb hardly works with my 300ex air tube...it will fit but one good hard bump and it pops out...how are you guys doing it??
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