katana carbs

[dave309]

hi all im running 36 mm slingshot carbs on my 1168 katanait runs well but has a rough patch at about 2000 revs it clears by 3 it drives through ok under load but is a pain round town would smaller pilot jets help fitted with 40s at moment and 150 mains it starts and ticks over fine any ideas please dave

[johnr]

Try lifting the needles in the slides by 1 slot.

[sparki]

needle at 2K revs? I'd look at the mixtures screws too maybe, maybe richen by a quarter turn and see if things change