Help with 1998 WR400F Carb
Posted November 08, 2011 - 08:22 AM
Posted November 08, 2011 - 04:07 PM
Since you mentioned the throttle cable; any way it got pulled or stretched some way during the fall? Perhaps one of the cables are binding somehow making it impossible to adjust the idle.
Could also be on the carb or intake system was bent, broken, cracked, or otherwise damaged from the fall.
Go over the bike carefully, especially the carb, looking for any damage. Check everything from the airbox all the way to the intake boot between the carb and the engine for any cracks/leaks. You might also disconnet the thottle cables completely and see if that makes any difference.
Make sure the hot start lever/cable is not damaged and keeping it engaged.
If you don't find anything maybe the float is stuck since the bike was probably up side down.
Posted November 09, 2011 - 07:03 AM
Posted November 14, 2011 - 12:44 PM
Posted November 15, 2011 - 10:50 PM
I found a '06 YZ450F carb and throttle assembly / cable on Ebay. I put it on yesterday and it started on the second or third kick. It runs better than ever now. Thanks for the help. If anyone has the same problems, just let me know and I'll let you know exactly how mine worked.
That carb bolts right up? The throttle position sensor plug is the same? Ive been having a heck of a time getting my 1998 400 to run because of carb issues. I've thrown everything at it, and broke down and finally took it to a shop and they couldnt get it to run either. If a later model carb fits and the bike runs better with it, I'd consider the investment.
Posted November 16, 2011 - 10:24 AM
Posted November 16, 2011 - 12:36 PM
What years should I be looking for? 05+? And if I get the carb without the throttle assmebly and cables, will my stock 400 cable lengths work?
Posted November 16, 2011 - 01:23 PM
Posted November 16, 2011 - 06:14 PM
Posted November 17, 2011 - 02:35 AM
Posted November 17, 2011 - 11:35 AM
Posted November 17, 2011 - 03:25 PM