Engine stalls when decelerating
Posted November 24, 2002 - 05:18 PM
It developed this bad habit over the last 5-6 rides. I have changed nothing, except to adjust the pilot screw during the past 2 rides attemtpting to correct the problem. It seems to improve when I use a leaner setting on the pilot screw, but still stalls sometimes.
I'm running a '99 WR400 w/stock exhaust and cam timing, grey wire cut, throttle stop removed, air box cover removed.
Posted November 24, 2002 - 06:25 PM
Assuming the air filter is clean, another thought would be a plugged slow circuit in the carb. You may want to give it a good disassembly and cleaning.
Posted November 25, 2002 - 01:17 PM
Posted November 25, 2002 - 05:47 PM
Posted November 25, 2002 - 09:23 PM
2. clean your carb ...
then report back ...
Posted November 27, 2002 - 01:22 PM
I replaced the spark plug and cleaned the air filter today. Gapped the plug at .028, adjusted the fuel mixture, and set the idle a little high. Stalling is minimized but not completely normal yet.
Also, tested coil and found resistance about twice as high as spec on both primary and secondary. I've ordered a coil and carb gaskets, etc.
I'll report back when I've got the carb cleaned and coil installed.
Posted January 18, 2003 - 02:25 PM
By this time I had also bought a new coil. I rechecked the resistance on my old coil after removing the spark plug cap from the lead and found it was as good as new. If anyone wants to buy my new one let me know. The dealer wouldn't take it back.