My attempts at carb tuning.



Specifications

ITEMSPECIFICATION
carburetor typeMikuni BST32SS
Bore size32 mm
I.D. No10D2
Idle rpm1,400 ± 50 rpm
Float height14.6 ± 1.0mm
Main Jet (M.J)#102.5
Main air jet (M.A.J.)0.6 mm
Jet needle (J.N.)5EZ74
Needle Jet (N.J.)O-9
Throttle Valve (Th.V.)#130
Pilot jet (P.J.)32.5
By-pass (B.P.)#1 0.8, #2 0.8, #3 0.8 mm
Pilot outlet (P.O.)0.8 mm
Valve seat (V.S.)2.0 mm
Starter Jet (G.S.)#32.5
Pilot screwPRE-SET
Throttle cable play0.5-1.0 mm (0.02-0.04 in)

I.D. NO. Location