�HONDA
� MBX50· MBX80
CARBURETOR mLE SPEED
NOTE
The engine must be warm for accurate idle
adjustment.
Attach an engine tachometer.
Turn the throttle stop screw to obtain the specified
idle speed.
IDLE SPEED: 1,400 min-1 (rpm)
When the engine misses or runs erratically, proceed
as follows:
Screw in the air screw until it lightly seats, then turn
it out specified turns.
MBX50: 1% turns (E type: 1% turns)
MBX80: 1 turn
Reset idle speed with the throttle stop screw.
Turn the air screw to find the highest idle speed.
Reset idle speed with the throttle stop screw.
Make sure that the engine does not miss or run
erratically. If necessary, repeat the above steps.
NOTE
The oil pump control cable should be adjusted
after the throttle grip free play has been
adjusted.
Loosen the lock nut. With the throttle fully open,
align the index mark on the pump body with the
reference mark on the control lever by turning the
adjusting nut.
Tighten the lock nut.
CAUTION
The idex mark on the control lever must be
in line with the reference mark on the pump
body. Failure to do so reduces the pump
delivery, resulting in serious engine damage.
When adjusting the index mark, it may be
within 1 mm (O. 04 in} out of line with the
ref ere nee mark toward the OPEN region.
Excessive white smoke or hard
starting:
Pump control lever excessively open
Burnt
piston:
Pump control lever not opened
properly
INSPECTION AND ADJUSTMENT
(1) THROTTLE SOP SCREW
(1) AIR SCREW
(1) ADJUSTING NUT
(2) LOCK NUT
(6) OPEN
(7) CLOSE
(5) CONTROL LEVER
(3) INDEX MARK
�------------11
(4) REFERENCE MARK
3-5
Summary of Contents for MBX50
Page 8: ...MEMO HONDA MIX50 MBXIO ...
Page 10: ...GENERAL INFORMATION 1 8 HONDA MBX50 MBX80 5 AlTERNATOR NEUTRAL SWITCH WIRES 4 WIRE HARNESS ...
Page 36: ...4 0 HONDA MBXSO MBXSO 1 Align with frame pipe ...
Page 55: ... HONDA MBX50 MBX80 CYLINDER HEAD CYLINDER PISTON 8 12 N m 0 8 1 2 kg m 6 9 ft lb I 6 6 0 ...
Page 91: ... HONDA MBX50 MBX80 CRANKSHAFT TRANSMISSION M4 t M3 r2 9 9 0 ...
Page 106: ...10 0 8 12 N m 6_9 ft lb 0 8 1 2 kg m HONDA MBXSO MBX80 UMP SHAFT BUSHING 1 WATER P ...
Page 165: ...14 0 ...
Page 166: ...FAIRING UNDER COWL 14 1 FAIRING UNDER COWL HONDA MBX50 MBX80 14 2 14 3 ...
Page 169: ... g M O BATTERY CHARGINGSYSTEM 15 3 BATTERY 1 RESISTOR I 4 ALTERNATOR 15 0 ...
Page 192: ...MEMO HONDA MBX50 MBX80 ...