Joined Nov 2001
17K Posts | 774+
Ely, England
No, it is a fuel screw, or to be more precise, a pilot screw because you are controlling a pre-set fuel/air mixture. you can't shange or alter the ratio but you can change the amount of the mix the engine gets.
overall, the air/fuel mixture coming out of that tiny hole is very rich, therefore more if it makes the overall mixture of the bike richer.
I visualise it by being in a helicopter over a river, the river is a light pink dye, coming into the river is a stream, the stream is a dark rich blackcurrant red (Ribena). before the stream entered it was a pink river, downstream from the the merger is now red.
so 2.5 turns out means that your PJ is too small.
larger PJ = PS out 1.5 turns.
regards
Taffy
overall, the air/fuel mixture coming out of that tiny hole is very rich, therefore more if it makes the overall mixture of the bike richer.
I visualise it by being in a helicopter over a river, the river is a light pink dye, coming into the river is a stream, the stream is a dark rich blackcurrant red (Ribena). before the stream entered it was a pink river, downstream from the the merger is now red.
so 2.5 turns out means that your PJ is too small.
larger PJ = PS out 1.5 turns.
regards
Taffy
