Stalling

Fivehunny

Member
Jun 23, 2003
3
0
Stalling
Hello,
My bike sometimes stalls. When I slow down and when I-m starting to ride, it sometimes stalls, liek BOOAAA. It doesen't help to twist the throtle. Afterwards it always starts fine.

The engine is slightly ported. Stock pilot is 55, I've tried that and 60+65. Stock main is 175, I've tried that and is now running 182.

Stock needle is in fourth pos. It's too rich (with 65/182).

After driving the spark is light grey.

Is the engine lean or rich?

Can anyone help me, please! What shall I do?
 

atc3434`

~SPONSOR~
Nov 1, 2001
579
0
The BOOAAA sound is usually indicating a lean condition. Play with the air screw, that might help. This is only a low RPM thing, right? IF that doesn't help, my next guess would be an intermitten ignition problem.
 
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