need suggestions on a diiferent carb!

[REDARMYRACER]

I was thinking of getting another carb for my 450r and wanted one that
A: made more power and
B: was a simple swap

anyone know of a good carb i herd that people were using the dirtbike carb xause it's a flat slide?????

[PEPwalshZ440]

flat slide means u can stab the throttle from dead idle and it won't die....a CRF carb will only allow this. Either a FCR40 from www.baldwinmotorsports.com kinda pricey. Or from sparks a FCR41 www.sparksracingengines.com

[29FTEX]

I'm using the stock carb and I don't have a single bit of bog or hesitation after stabbing it from a dead idle. Of course, the 13.8:1 piston and 113 octane fuel helps it to be so crisp. :D

[robby26wi]

You guys really need to use that search button...There is like 5 or more on this already...

Originally posted by 29FTEX
I'm using the stock carb and I don't have a single bit of bog or hesitation after stabbing it from a dead idle. Of course, the 13.8:1 piston and 113 octane fuel helps it to be so crisp. :D

If you rode one with a FCR carb on it you would understand. It is night and day from a stock carb.

Originally posted by REDARMYRACER
I was thinking of getting another carb for my 450r and wanted one that
A: made more power and
B: was a simple swap

anyone know of a good carb i herd that people were using the dirtbike carb xause it's a flat slide?????

Call JH Racing they hooked me up 1-918-371-0101

[29FTEX]

Originally posted by TRX450R_Racer
If you rode one with a FCR carb on it you would understand. It is night and day from a stock carb.

My 416ex and 250R both had an FCR on them. I know what difference it made on the EX, and I know what difference the piston and fuel made to the response on the 450R. Night and day.

[quadjeff]

39 MM FCR. It is the best!!

[86atc250r]

39 MM FCR. It is the best!!

I don't know about the 39 being the "best" - but either the MX 39mm FCR or the 40mm from the CRF are good choices.

I run a 40mm FCR from a CRF dirtbike. It runs very well. Was a very easy swap. The only additional piece of hardware I had to buy was an adapter for the air side. Everything is functional - stock throttle, stock hotstart, choke, etc...

Full FCR setup cost me approx $415 & an afternoon's work

[lukester720]

I got the fcr 40 a few days ago and like it a lot so far, I haven't really got to put much time in on it yet but so far think its definately worth adding.

[Toadz400]

Isn't the stock carb a 42mm? What is the advantage of a smaller carb? Better throttle response? More low-end?

I remember a lot of people saying how whimpy the YFZ was for not having a 42mm carb.

[86atc250r]

Bore diameter is not the only measure of a carb's ability to flow.

A 40mm FCR will flow as well as or better than a 42mm stock carb at full throttle. At part throttle it flows much better than a stock carb.

[WhiteZee]

what year crf carb are you using 86atc?

[robby26wi]

02 03 and 04 are the same carbs with a bit different jetting but the 03 is the cheapest...

[86atc250r]

That said - I used the 03 :cool:

Cost from servicehonda was $350.

The jetting for the 03 was spot on for my HRC setup - I had to adjust nothing and it was closer than the jetting provided by the HRC kit for the stock carb.

[Hammer trx450r]

Originally posted by 86atc250r
That said - I used the 03 :cool:

Cost from servicehonda was $350.

The jetting for the 03 was spot on for my HRC setup - I had to adjust nothing and it was closer than the jetting provided by the HRC kit for the stock carb.

Thanks man i guess thats my route