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View Full Version : 400 ex carb on 300 ex


Camaden
02-28-2006, 07:48 PM
what kind of a difference should I expect if my bike has a high comp piston and stage 3 cam?
250rracer00
02-28-2006, 10:03 PM
should add good power over the 300's carb
ZeroLogic
03-01-2006, 01:24 PM
The 400ex carb gives the 300ex quicker throttle response.
RiderTRX400ex
03-01-2006, 02:57 PM
revs much quicker... adds more pull whole powerband.. awesome mod since the 400 carbs are soo easy and cheap to get ahold of:D
Camaden
03-02-2006, 07:29 AM
ok cool, what size jetting ya think I should start with since it has a fmf full exhaust and the guy told me it has a stage 3 web cam and high comp piston?
Camaden
03-04-2006, 01:55 PM
anyone
ZeroLogic
03-04-2006, 03:52 PM
Look here (http://www.exriders.com/vbb/showthread.php?s=&threadid=12926&highlight=400ex+carb+300ex) and here (http://www.exriders.com/vbb/showthread.php?s=&threadid=130263&highlight=400ex+carb+300ex). I think 150 for the main jet from reading some other threads, but search and see also.