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Florida400EX
07-04-2004, 11:10 PM
Well, I was looking into getting one of those carb vent hose kits. When I land from a jump, the motor bogs for a second or two, and that makes me loose valuable time in a moto (especially while chasing 450s!!!). Do those carb vents work as well as they're advertised? Would a 38mm Lectron carb fix this and giveme more power?
Florida400EX
07-07-2004, 08:22 PM
Anybody?
Florida400EX
07-10-2004, 07:34 PM
common??? somebody?
440ex kid
07-10-2004, 07:38 PM
I have heard that lectron carbs have the same problem. The vent are for two stroke carbs I think. You might want to try an fcr carb.
Florida400EX
07-10-2004, 08:53 PM
ok thanks! How much do used or new 39mm FCR carbs ussualy run in price?
04'400ex'er
07-10-2004, 08:56 PM
Originally posted by Florida400EX
ok thanks! How much do used or new 39mm FCR carbs ussualy run in price? Check EBAY. You will sometimes find good prices there.
Florida400EX
07-10-2004, 11:56 PM
ok, should I be better off getting either a carb, or head porting, and a high comp piston?
cals400ex
07-11-2004, 12:25 AM
i would say no on the carb. i just didn't find much of a gain with one. i haven't tried a ported head so i can't comment there either. however, a cam and piston opened my up pretty good.
440ex kid
07-11-2004, 12:32 PM
I would go with a piston and a cam. Porting doesnt do much on a stock motor. and carbs usually cost alot.
Toadz400
07-11-2004, 03:22 PM
Originally posted by cals400ex
i would say no on the carb. i just didn't find much of a gain with one. i haven't tried a ported head so i can't comment there either. however, a cam and piston opened my up pretty good.

I'm guessing you didn't get a bigger piston?

A friend of mine had installed a 416, ported his head himself, Stage 2 cam, and has a full exhaust. After he added a FCR39 it was like adding the 416 kit again...impressive gain.
440ex kid
07-11-2004, 04:31 PM
I just noticed that you have a cam. Then a high compression big bore piston(a 416 or so) will add alot of power. You will have impressive gains with this setup.
Florida400EX
07-11-2004, 05:02 PM
I will be adding a Wiseco 416 piston with 11:1 compression in a couple weeks, but for now it will just be the cam, pipe, filter, and jets.
Toadz400
07-11-2004, 05:14 PM
Originally posted by Florida400EX
I will be adding a Wiseco 416 piston with 11:1 compression in a couple weeks, but for now it will just be the cam, pipe, filter, and jets.

Get an FCR39, you will notice a huge difference.
400rednEX
07-13-2004, 07:01 AM
the vent kit helped with the bogging on mine.