L/handed 1000 series (2" mounting centres)36mm concentric, needle jets wear,not mains,(sawing action from needle /throttle action
),will find it's set up is twostroke carby,no emulsifying holes on needle jet,(& most importantly it's metered/measured from top of jet,4 stroke n/jets measure 1/2 way down inside,a trap if your'e not aware of this feature),prob got an "O" needle (std twoee), cutaway on slide 2-2.5??,hth,