Fuel Line; Throttle Operation - Honda 2003 NPS50 Ruckus Service Manual

MAINTENANCE
F U E L LINE
Remove t h e floor step (page 3-7).
Check the fuel lines for deterioration, damage or
leakage.
Visually inspect the fuel filter for contamination.
Replace the fuel lines or filter if necessary.

THROTTLE OPERATION

Check the throttle cable for any deterioration or
damage.
Check that the throttle opens smoothly and auto­
matically closes completely in all steering positions.
If the throttle grip does not return properly, lubricate
the throttle cable and overhaul and lubricate the
throttle grip housing.
For cable lubrication: Disconnect the throttle cable
at its upper end. Thoroughly lubricate the cable and
its pivot point with a commercially available cable
lubricant or a light weight oil.
If the throttle grip still does not return properly,
Reusing a dam­
replace the throttle cable.
aged or abnormally
bent or kinked
With the engine idling, turn the handlebar all the
throttle cable can
way to the right and left to ensure that the idle
prevent proper
speed does not change. I f idle speed increases,
throttle slide opera­
check the throttle grip free play and throttle cable
tion and may lead
connection.
to a loss of throttle
control while riding. Measure the throttle grip free play at the throttle
grip flange.
FREE PLAY: 2 - 6 mm (1/16 - 1/4 in)
Throttle grip free play can be adjusted at either end
of the throttle cable.
Minor adjustment is made with the upper adjuster.
Loosen the lock nut, turn the adjuster as required
and tighten the lock nut.
4-4
1111 11 1
2 - 6 mm ( 1 /1 6 - 1 /4 in)
ADJUSTER