SERVICE DATA

CARBURETOR

ITEM
SPECIFICATION
Carburetor type
MIKUNI TM33SS
Bore size
33mm
I.D. No
14D0
Idle r/min.
1400+- 100 r/min.
Fuel level
0 +- 0.5mm (0 +- 0.02in)
Float height
14.2 +- 1.0mm (0.56 +- 0.04in)
Main jet(M.J.)
#132.5
Main air jet (M.A.J.)
0.9mm
Jet needle (J.N.)
5FP96-3rd
Needle jet (N.J.)
P-8
Cut-away (C.A.)
1.5
Pilot jet (P.J.)
#37.5
By-pass (B.P.)
0.8mm
Pilot outlet (P.O.)
0.6mm
Valve seat (V.S.)
1.8mm
Starter jet (G.S.)
#50
Pilot screw (P.S.)
1.0 turn back
Pilot air jet (P.A.J.)
1.0mm
Throttle cable play (pulling cable)
0.5-1.0mm (0.02-0.04 in)

ELECTRICAL

Unit: mm(in)

ITEM
SPECIFICATION
NOTE
Ignition timing

5 B.T.D.C. below 2300r/min and
30 B.T.D.C. above 4300 r/min

 
Spark plug Type ND.: X27EPR-U9
N.G.K.: DPR9EA-9
 
Gap 0.8-0.9
(0.03-0.04)
 
Spark performance Over 8 (0.3) at 1 atm.  
Ignition coil resistance Primary 0.1-1.0 ohm Terminal-Ground

Secondary

12-22 kohm Plug cap-Terminal
Magneto coil resistance Lighting 0.1-1.5 ohm Y-B
Power source 250-370 ohm W-Br
Pick-up 180-270 ohm G-Bl
Lighting coil no-load voltage (when engine is cold) More than 75V (AC) at 5000 r/min.  
Regulated voltage 12-14V at 5000 r/min.