PGO Bug Rider BR-250, Service Manual

Page: 87 / 121

8
. CARBURETOR
BR & M2 250 ENGINE
8-8 INSPECTION
Check the following parts for damage and clogging.
* Pilot jet
* Piston valve
* Main jet * Starter jet
* Main air jet * Gaskets and O-rings
* Pilot air jet No.1 & No.2 * Pilot outlet and bypass
* Needle jet holder * Coasting enrichement valve
* Float * Needle valve
* Jet needle * Valve seat
if any abnormal condition is found, wash the part clean. If
damage or clogging is found, replace the part with a new
one.
CARBURETOR CLEANING
!WARNING
Ÿ
Clean all jets with a spray-type carburetor cleaner and
dry them using compressed air.
Ÿ
Clean all circuits of the carburetor thoroughly-not just the
perceived problem area. Clean the circuits in the
carburetor body with a spray-type cleaner and allow each
circuit to soak, if necessary, to loosen dirt and varnish.
Blow the body dry using compressed air.
!CAUTION
Ÿ
after cleaning, reassemble the carburetor with new seals
and gaskets.
Some carburetor cleaning chemicals,
especially
diptype soaking solutions, are very corrosive
and
must be handled carefully. Always follow the
chemi-
Do not use a wire to clean the jets or passageways.
A wire can damage the jets and passageways, if
the components cannot be cleaned with a spray
cleaner it may be necessary to use a dip-type clean-
ing solution and allow them to soak. Always follow
The chemical manufacturer
’
s instructions for proper
use and cleaning of the carburetor components.