07 wr450 running rough at 1/4 throttle
Posted March 15, 2010 - 06:49 AM
Posted March 16, 2010 - 12:39 AM
Posted March 16, 2010 - 12:13 PM
Posted March 16, 2010 - 07:10 PM
This is most likely from the TPS (throttle position sensor), you can do a search for a wealth of info. I just removed my fuel tank and unplugged the grey connector on the left side. You can only hope of minimizing, you're lucky to eliminate it.
I don't notice it much on mine anymore, was horrified! when I first bought it (07). Also, make sure the grey wire mod is done (search) don't clip the wire just remove the pin on the connector.
Probably doesn't have anything to do with the A.I.S. These are great reliable bikes, they just have some quirks (like the chain rub on the frame!).
Edited by desertlover, March 16, 2010 - 07:25 PM.
Posted March 17, 2010 - 10:26 PM
Posted March 20, 2010 - 09:07 AM
Posted March 20, 2010 - 09:43 PM
My 07 doesn't sputter at all, I think your jetting is just off. When I first bought it there was a popping on decel and I believe it was the ais system. I have that removed and rejetted and I have no issues. Good luck you will love the bike
Mine runs fine too after a good re-jet and fine tune. I do remember having that issue a long time ago, tried disconnecting the TPS but it didn't help. Turned out to be the wrong pilot jet size and slightly off fuel screw adjustment.
Posted March 23, 2010 - 06:36 PM