with the spout connector removed you are setting the base timing. This takes the computer out of the picture completely. Then when you plug it back in, the computer reads that as base, and adds timing to that throughout the RPM range.
If this doesnt fix your misfire/starting problem, be sure to post about it and we'll try to help as best as possible.
__________________
NMRA O/C 9516
NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft
|