91 907ie back fire

1564 · Post by **1564** » Sun Feb 26, 2006 8:17 pm

i have a fim chip.....

1564 · Post by **1564** » Sun Mar 05, 2006 9:11 pm

up date on back fire problem...duc shop found problem the rear cyclinder hedder connection to head was loose causing air to enter triggering shot gun blast....also the computer was found to be set lean at 1%..corrected to 2.2% at muffler...thanks to desmodog he called it correctly as the source of problem..question when your setting computer trimmer switch is the screw suppose to make a click sound when fully turned...duc shop not sure if 91 907ie computer make the sound and they were concerned as my bike does not do this....click yes or click no.....

DesmoDog · Post by **DesmoDog** » Mon Mar 06, 2006 3:39 am

1564 wrote:..question when your setting computer trimmer switch is the screw suppose to make a click sound when fully turned...duc shop not sure if 91 907ie computer make the sound and they were concerned as my bike does not do this....click yes or click no.....

As I recall, mine did not click...

Finnpaso · Post by **Finnpaso** » Mon Mar 06, 2006 7:25 pm

Mine click, but have to have VERY clean ears to hear it ! It is JUST noticible. Hey guys, wash Your ears from shit! :laugh: Ps, i have P7 ECU(1991), 1992 modell have P8 ECU, and i am not sure of it.