Carb Identification YZ450F

1 reply to this topic
  • 72degrees

Posted October 05, 2012 - 01:03 AM


I'm trying to discover all the modifications that have been made to my tuned 04 YZ450F supermoto and wonder if it has a non-standard possibly even oversize carb. The Keihin is stamped "5XDS 50ST24".

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 72degrees

Posted October 05, 2012 - 06:29 AM


"My eyes are dim I cannot see..."

Just checked again properly with a torch and my reading specs on. It's actually 5XD5 50. A bit of googling seems to have that as the OEM carb for a 2005 USA spec YZ450FT. The Model Plate on the bike shows 5XD2 (2004 Euro spec.). So a different carb to what it started life with but apart from jetting (which probably isn't standard anyway and hasn't been checked yet because it's going so well) no obvious trick tuning in that department.

Couldn't resist starting it up and sitting on it with a grin like Mr Toad of Toad Hall despite the fact it won't be seeing any action this weekend. OK, Back to preparing the YZ250 and YZ125 for Sunday's fun. A pity my trailer will only carry two bikes.

Related Content

WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F

Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies

Need help by Goforaride

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  68 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.