9 replies to this topic
  • sy400

Posted May 17, 2013 - 06:11 PM


Some one please tell me the differences of the 2007 Yz450f carb than 99 yz400f carb

  • grayracer513

Posted May 17, 2013 - 07:19 PM


The '07 carb is the fourth or fifth significant revision of the basic FCR design since the '99 model. It's much more sophisticated in a number of specific ways.

Physically they're very similar, and can be interchanged with very little work.

  • sy400

Posted May 17, 2013 - 08:24 PM


Thanks. But with the 400 air box will it reach??

  • grayracer513

Posted May 18, 2013 - 05:32 AM


Yes. But you need to clamp the air boot on the carb first, then pull the carb forward and clamp it in the mounting sleeve.

  • sy400

Posted May 18, 2013 - 05:44 AM


An everything else will just hook up right of you have the 450 throttle cables?

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  • sy400

Posted May 21, 2013 - 12:44 PM


Same throttle cables as 400?

  • grayracer513

Posted May 21, 2013 - 01:27 PM


No, you need the 450 throttle cables and the complete hot start from plunger to lever from the 450 as well.

Why do I feel like I've answered this question 6 times in the last two weeks?

  • sy400

Posted May 21, 2013 - 02:15 PM


I found out about the carb change. An it Really interested me. Sorry for all the questions. I didnt want to buy something an have it not fit or not work for my bike.

  • grayracer513

Posted May 21, 2013 - 02:36 PM


No problem. But using the search function could connect you to all kinds of previous posts on this subject.

  • sy400

Posted May 21, 2013 - 03:08 PM


Im new to TT. So i did not know there was a search.

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