what if i buy a edelbrock 440ex carb kit it comes with a 440 carb. can i just install it to my 400ex 2003 without having to tune anything. do i need to buy anything else before i put that carb on? or can i just put the carb on and it should work?

 

I ran one years ago, and found it very dissapointing! It was furious on the top end, but could not be tuned on the bottom very well. It had a bog off idle, that just would never go away.

And don't say I didn't know what I was doing. The Edelbrock factory is near where I live, and I took it over to them and even their tech guys couldn't get it right.......

 

Interesting Recon.... sorry to hear that.
i've got the 440 and i'm pretty happy w/ it.
mine is not 100% dialed and i do have a slight idle issue
3
nojoke what do you have done to your bike... if you're stock then you don't need the 440 version...
you need the Thumb Kit #3004 version of the performance carb

 

YOOO DUSTER WERE CAN I GET A #3004 THUMB KIT? WHAT IS IT? YEA MY 400EX IS STOCK I WANNA MAKE IT FAST BUT I NEED A NEW CARB FIRST CUZ THE ONE I HAVE IS WAASTED I BOUGHT IT OFF EBAY LIKE AN IDIOT SO IM TRYING TO GET ONE BRAND NEW. OR WHAT DO U THINK I SHOULD DO TO MAKE IT FASTER? BUT I NEEED A CARB A.S.A.P

 

As for that bog.....it made me come up short on a big double jump. The result was not at all pretty!!! Pulled it off the next day, and went back to the stock carb!