hi, today i was driving my car around n i noticed that of the mark my engine was struggling to accelerate, so i put the tuning setting back to what the book said and starting to tune it. i got tuned it to a point that some times it would pick ip revs fast and other times it would labour and take a very long run to pick up. I decided to have a look at the 2 speed as i looked i noticed that the screw that you ajust it was missing. i am just wondering if anything else is missing because of the screw cumin out. Does anyone no the part number to that screw. When i go and get the parts i need do i need to take the two speed out to put the screw back in or could i just screw it in from the adjusting hole.

Thank in advance