KYMCO MXU 450i Service Manual

CHECKING AND CLEANING DRAIN
1. Inspect the drain on the fi lt er housing cover and
clean out any
dirt or debris.
2. Replace
any drain that is. crac.ked or shm• vs any
signs
of hardening or detenoratJon.
3. Wipe any accumulation
of oil or gas from the filter
housing
and drain.
Valve/Tappet Clearance
(Feeler Gauge Procedure)
To check and adjust va lve/tappet clearance, use the
following procedure.
•NOTE: The seat, left-side and right -si de engine
covers, and gas tank must be removed for this pro-
cedure.
1. Remove the timing inspection plug and spark
plug: then
remO\ ~ e the tappet . covers (for J??re
deta.iled infom1atton, see SectJOn 3 - Serv1cmg
T
op -Side Components).
2. Rotate th e crankshaft to the TDC position on the
com
pr ession stroke.
•NOTE: At this point , the rocker arms and adjuster
screws must not have pre ssure on them.
2-6
3. Using a feeler gauge, check. e~c h v a! ve/ t~pp et
cl ea rance. If clearance is not w 1thm spec rfi ca~tons,
loosen the jam nut and r ~tate .t h ~ tapp e.t adj~1ster
screw lmtil the cl ea rance IS w 1thm spec rfi c~tJons.
Tighten each jam nut secur ely after completJng the
adjustment.
& CAUTION
The feeler gauge must be positioned at the same
angle as the valve and valve adjuster for an accurate
measurement of clearance. Failure to measure the
valve clearance accurately could cause valve com-
ponent damage.
VALVE/TAPPET CLEARANCE
Intake
J 0.10 mm
Exhaust
J 0.17 mm
4. Install the tinting inspection plug.
5. Place the two tappet covers with 0-rin gs into po si-
tion: then tighten the covers securely.
6. Install
th e spark plug: then install the timing
in spection plug.
Valve/Tappet Clearance
(Valve Adjuster Procedure)
To check and adjust val ve /tapp et clearance, use the
foliO\\ri.ng procedure.
•NOTE : The seat, left-side and right-side engine
covers , and gas tank must be removed for this pro-
cedure.
l. Remove the tim in g in spec t.ion plug and spark
plug: then remove the tappet. covers (for
~?re
detailed information. see S ectiO n 3 - Serv 1cm g
Top-Side Components).

KYMCO MXU 450i Specifications

General

Brand	KYMCO
Model	MXU 450i
Category	Offroad Vehicle
Language	English