I’m having trouble getting my scoot to run nice and crisp. It runs ok at full throttle, but bogs and stutters around 1/4-1/2 throttle…
This is my setup:
Polini head on DR177 cylinder with transfer ports between engine block and cylinder base opened up to about 3/4 the size of a polini cylinder
Timing at 18 degrees
approx 1mm squish
JL RZ EVO lefthand
Dellorto phbh 28mm carb with standard slide, 55 pilot, x2 needle on 2nd clip position from top, an AV262 neelde jet and a 122 main. Idle mixture screw is set at 3,5 turns out. And I’m not running with a filter, only the rubber bellow.
Any advice would be appreciated!