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View Full Version : Cdi Box???


ATRider
03-01-2006, 11:36 AM
What is the best cdi box for the 400ex, 99-04 model?
Rico
03-01-2006, 11:56 AM
It sure as hell ain't the white bros one....:blah:



GT Thunder gets my vote.
SandShark400
03-01-2006, 09:45 PM
why not the white bros. i just ordered one!!!!!!!!!!
underpowered
03-02-2006, 05:52 AM
Originally posted by SandShark400
why not the white bros. i just ordered one!!!!!!!!!!

All teh WB is, is an XR250box with a white bros sticker on it. If it is cold out your bike will be hard to start. THe GT thunder one is a box made for the 400ex, not modified off another bike to work on it.

i would say GT thunder or TC racing, both make qualitly boxes.
Chino886
03-02-2006, 08:11 AM
What about a Rick's or Curtis Sparks?
SandShark400
03-02-2006, 04:04 PM
well then i;ll post results of it on here
Quad Dude
03-02-2006, 09:24 PM
ya definatly not white bros. because when its cold out or ever just cool enough where your engine turns over slower thatn it wont start because like someone said its made for a bike witch has kick start and the motor must turn over a certain speed before it will throw a spark. not a problem for kick start because it always turns at the same speed but cold weather makes it harder for a battery system to turn over fast enough. but if ya got a heated shop or dont mind putting the battery charger on or pusing it every time. the white bros box does rev a little higher and harder.
Ridered416ex
03-03-2006, 03:15 PM
my 416ex wit 11:1 compression and the WB thing starts in the cold just at first it sounds like its gonna die then just starts spinning really fast and then fires.
ATRider
03-03-2006, 04:57 PM
What about the SRP, Magnum. Procom. or Big Gun Cdi boxes? I've heard the big gun may cause costly engine problems. Any truth this? What would you say is the best cdi box?
spud400ex
03-03-2006, 06:05 PM
ive uses the rick's cdi for over a year and havent had any problems with it. no problems getting started in cold weather or anything.
EvilMaximus
03-04-2006, 06:37 PM
where do u buy a GT thunder or TC racing CDI...ive looked but dont find anyone sellin them...also im wondering how Procom. cdi's are...any info?
Ridered416ex
03-04-2006, 06:56 PM
i heard procom's are not good. And go to www.gtthunder.com