2004 WR450f Trouble shoot
Posted January 13, 2009 - 11:47 AM
When I got the bike the headlight (stock) worked but over time it began to dim at idle and get brighter with RPM then it quit working all together. Now when you rev it up it backfires/bogs at the higher RPM. The electric start does not work now either. Kickstarts fine but the backfire issue worries me. And the starting indicator light does not even come on.
New battery in June.
Is it a stator not putting out enough voltage to get proper spark? Or is there somewhere else in the system I need to look. I have a manual so I was going to start going down the line.
Posted January 13, 2009 - 03:11 PM
Posted January 13, 2009 - 03:58 PM
The backfiring is happening while it is being ridden as well. My thoughts on an electrical issue is the start button red light does not even come on and it won't even turn the starter. I was just thinking maybe the stator (due to the ever dimming now dead headlight) was slowly dying and is now not creating enough spark to properly fire the motor at higher RPM's. I guess that could also not be charging the battery.
Not sure what jetting is in there. My elevation is usually between 4,500 to 6,000 feet
Posted January 13, 2009 - 04:47 PM
Posted January 13, 2009 - 07:41 PM
Posted January 14, 2009 - 08:21 AM
Posted January 15, 2009 - 07:23 AM
Now it is on to valve adjustments.