Honda NU50 User Manual

MAINTENANCE
OIL PUMP CONTROL CABLE
ADJUSTMENT
NOTE
The
oil pump con~ro! cable should be adjUS~'d
after the throttle grip free play ha5 been ad·
justed.
Open the throtlle fUlly and check that the aligning
mark on the oil pump contrallever is aligned with the
index mark on the pump body. Adjust if necessary by
loosening the lock nut and turning the adjusting nut.
After adjustment, tighten the lock nut.
:C~UTIO,,-,N,,-,-: --,
Rc/.:rcncc lip aliglll/'lI!/lt withill } mm (0.04
in) of index mark' Oil the open side is accept·
ablt:. J!OWCI'I!/", Ihe alignill}: mark muxi never be
011 fhe dosed side of rht: index mark. otherwise
wginf' dml/age wi!! (I(Y."lII bewuse of iUSIIfJr·
Clell! lubricaTioll
Troubleshooting:
Excessive white smoke or hard statting:
Pump control lever excessively open
Siezed piston:
. Pump control I~ver nOI properly adjusted.
~HOND.A
~ NU50· NU50M
IDLE SPEED ADJUSTMENT
Attach an engine tachometer.
Turn the lhrottle stop screw to obtain the specified
idle
speed of 1,800 rpm. When the engine misses or
runs erratic, proceed as follows:
1) Screw in the air screw until it lightly seats, then
turn it out 2 turns.
21 Reset the idle speed with the throttle stop screw.
3} Turn the air screw 10 find the highest idle speed.
4\ Reset the idle speed with the throttle stop screw.
51 Milke sure that the engine does not miss or nUl
erratic If necessary. repeal steps 2) through4},
NOTE
The pngine
menlo
~UH·~ warm for accurate acJj~
I
THROTTLE STOP SCREW
AIR SCREW
3-6
28
D<lte of Issue: NOli., 1981
© HONDA MOTOR CO., LTD.

Honda NU50 Specifications

General

Brand	Honda
Model	NU50
Category	Scooter
Language	English