I have a Keihen 42mm from a 05 450r on my z, it runs really well, no driveability problems, awsome throttle response, no flat spots. I was wondering if it would be worth it swapping to an FCR. Has anyone went from one to the other? I hear that it will make more power and have better throttle response. I feel like the way my is running, the throttle response can't get any better. I just hate to go and spend more money for no difference. If it will make the bike a lil faster I'll do it. I just got into running the 300ft. sand drag and I need to make up a bike length or two to put me where I need to be. I'm changing the intake cam to a little bigger one so that will help a bit, but just wondering about the carb.

 

No one has swapped up between the two?

 

i my self looking for good mods did you get a good deal on your current carb did it make a differance on you quad from the stock carb, sorry i can't awnser yours ? but maybe you can mine.

 

To be honest, it made the biggest difference out of everything I have done except for the big bore. They were about even. The carb makes a tremendous difference if you get it tuned/installed right. I think I got the carb for like $140-$150, I dont remember. I'm prolly gonna sell it soon. Yes I ran it with the stock bore. Did it lose low end? No. It prolly gained some. Hope I helped you out.

 

if or when you sell i may be interested

 

K

 

HI THIER LONG TIME SINCE I BEEN ON BUT I NEEDED SOME INFO WHAT ALL DID YOU NEED TO MAKE YOUR 450R CARB FIT I JUST GOT A BRAND NEW FACTORY TAKE OFF FOR CHEEP I WAS WONDERING WHAT ALL I WOULD NEED BEFORE I START FOR THE GARAGE THANKS

 

RIGHT NOW I HAVE LUNEY TUNED EXHAUST ALUM AIR BOX WITH UNI AND PRE FILTER TOP WHAT JET DO U THINK I SHOULD RUN ON THIS CARB. PLAN FOR ATHENA BY THE END OF SUMMER BUT I CANT WAIT TILL THEN TO PUT ON THE CARB ALSO I DO ALOT OF XC AND SOME MX WHAT CAMS DO YOU THINK I RUN WITH A BUDDY WITH A RAPTOR LUNEY TUNED EXHAUST STAGDE TWO CAMS AND PORT POLISHED HEAD AND THAT REALLY OPENED UP THAT QUAD WILL I HAVE A CHANCE.

 

I see in your sig that you have an Edelbrock carb--that is a great carb and dropping-in the 450R carb would be going backwards... The Edelbrock has the externally adjustable needle and if its a newer one, an accelerator pump. I would leave that in there and focus on the other mods you mentioned...

 

the eldelbroke broke throtle stuck on it and i was able to maintain the situation but i have nephews and a wife that ride the quad and i did not want it to stick on thiem. or me in a non controling area