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Carb questions
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Posted by: Benjithx

Project Black is an 04 with a stock carb.

It has 480cc motor with DASA Porting and a HRC Cam at 12.5:1 cr.

Would it be worth upgrading the carb? If so which one? and why?

Thanks

Posted by: d3ktrix

IMO an 07 CRF450R carb taper bored to 43mm.
And a NOSS Machines adapter bored to match it.
Or who ever u have bore it might use their own adapter.

I have one on my 05 and its not even bored and it made a huge difference in throttle response.

Posted by: liledg

yea my carb bored by DASA came stock on my 2006 trx450r cost 250 if you take it off yourself. 2006 and up carb much better cant tell u why in detail but works, its really a good aftermarket carb on a stock bike. also DASA will put in a 2007 cr450 neddle that has a differnt profile and more slots so you can move the c clip up or down when jetting and fine tuning that beast.

Posted by: patrickj75

quote:
Originally posted by d3ktrix
IMO an 07 CRF450R carb taper bored to 43mm.
And a NOSS Machines adapter bored to match it.
Or who ever u have bore it might use their own adapter.

I have one on my 05 and its not even bored and it made a huge difference in throttle response.

good call. talk to Chad at DRG. he can do the whole thing for ya. worth every penny since you have a big motor already. the 07 crf's are the best ones so far. they updated a few things that add to the overall performance.

Posted by: d3ktrix

If u go with an FCR of an 06+ TRX you'll either have to grind the top of the carb off where the throttle cable goes in. Or heat the bottom of ur gas tank and remold it a little for the carb to find under it.
Also you won't have hot start.

If u go with any year CRF carb it will fit perfect and have hotstart.
Just have to switch over the TPS plug.