Poor Performance At High Speed - Honda 2003 NPS50 Ruckus Service Manual

POOR PERFORMANCE AT HIGH SPEED

Chockll• lg -�mlng.
NO
VES - GOTOSTEP2.
2.
fuel Une
Oisc:oonecl the f u
Oon r/1� fuol flow freely?
NO
Y£9
a. c..tM.tretor Inspection
Rom.ove
A,. th• jets �logpd?
YES
NO
4.
Spark Plug lnspor,.tion
Aemove and
& me ¥M" ptu9 m good CIJ(lc/ltlon7
NO
5.. V•tve
Check the v:.tvc liming.
J!i tl1e vtJt v e
NO
YES -
L V•lve Spring lm;pectlon
Check
Is th• vaMt aprlng lr H t.engih wkhln .,.;£;calion!
NO
YES -
Cemlhm lns;pecdon
7 .
Remove ond inspe�
'' tht: cam tab• h.;ght wfthln
NO
VES - Olm!lhart i$ OK
21-6
•
• FiN)(y ECM
•
put.. oentt1r01
Ftu ' 1 Y ignition
•
lmproper'WI!VOIImlng
Inspection
el
hose ellhe cnr1Jurc l o1,
fu� lint
O�ged
Oovgad fv.til �p bt'ID1h«
Oogged tu.1 fibr
•
•
h u l ey fuel pump
•
loose Or dbc:ollnKIId kMII pump syttetn lint
GO TO SttP 3.
-
the carbu tetor end cl\d: for dogged jets.
Clean the jat9
-
GO TO STEP <i.
-
inq)ect
spar!< pluo.
lht
Plug �vlced frtqtJ.ntty enough
noc
Jneotn!d 'C)att. piUV Mo-t range
• lncotrecl spilt pNg tpp
•
Faul:y � ....-.,.,. (Sf) valve
• Alr deaflF!f'
dirty
mi Inspection
n
Ti g
mir! g ti r:orrt�et?
- Ct�m sf)rOCktlt not
mtt,Hod l)foperty
GO TO $ TEI�6.
valw spr'.ngs.
me
Fa-ity vaJ¥e 5Pri'9
-
umNf'L
the
f.Ptclncitlon1
- f':a.,�l!y t�msturfl