Is this a stock 99 WR400 carb?
Posted May 17, 2008 - 10:44 PM
I bought the bike used and was not told anything about the carb being changed out, but from what I've seen it doesn't appear to be stock (no linkage cover?).
I need to know if it is stock or something like a FCR41 so I can order a few parts for it.
Need float bowl o-ring gasket, intake bell o-ring gasket, accel pump diaphragm and o-rings (may be a good time to go to a larger AP?).
Anything else I should consider replacing? The wheels on the arm that pulls up the slide looked a bit worn, but nothing else looked bad.
I also wrote down all the jet sizes and needle type for looking at after I figure out which model of carb it is.
Does that hole need to be plugged or anything?
Posted May 18, 2008 - 10:35 AM
Posted May 18, 2008 - 12:05 PM
Stock except for the Power Now (Gold colored intake bell that replaced the stock plastic piece. It has a "wing" in it to increase air flow velocity at part throttle settings.
Cool Thanks, i will order up some parts for it. Is the stock A.P. sufficient? I will just order a new diaphragm for it.
Posted July 23, 2009 - 11:11 PM
any help appreciated please!!
Posted June 20, 2013 - 02:59 PM
Posted June 20, 2013 - 03:11 PM
Once the old FCR's get worn and tired, the best thing to do with them is replace them with an FCR-MX from a later model. The '05 and up YZ450 carbs are an excellent choice.
You would need the 450 cables, and the complete hot start assembly as well.