What jet is this 175 RD

[mr.stinkyfinger]

I've got a 2004 400ex and it had a HMF pipe on it when I got it,
I checked the Jet today and the markings are 175RD. Any ideas?
Could this be the stocker?

[hornetgod13]

Not a stock jet. It would have been a 148K (Keihin). Not sure what the "RD". Probably who made it. Not sure how it crosses over to Keihin jets. I would swap it out.

[ImplodedMindZ]

Its R.D. Engineering that makes the jet THIS (http://cgi.ebay.com/ebaymotors/R-D-Engineering-Precision-Machined-Brass-Carb-Jets_W0QQitemZ280065249477QQihZ018QQcategoryZ35572 QQcmdZViewItem) is about as far as i got in searching for them.

[mr.stinkyfinger]

cool, thanks for the hlp. I guess I'll just order up a DynoJet kit, so I can be sure of what it is