Baja motorsports DB30 Mini Bike Reference manual

B
A
C
Locate Carburetor (A) on Mini Bike. If fuel is
leaking turn fuel valve to “OFF” position.
Fuel hose not hooked up:
Check to make sure fuel line (B) is attached to
both gas tank and carburetor. Check fuel line
for leaks.
Bolts loose or missing from
bottom of bowl:
Locate bolts (C) on bottom of carburetor bowl
(D). Check to make sure fuel is not leaking
out of these points. If fuel is leaking, tighten
bolts snug.
D
Carburetor oat stuck:
If gas is still leaking out of the carburetor,
after the above points have been checked, it
may be the oat located inside the carbure-
tor is stuck causing gasoline to ow out the
overow gap. Check oat and needle valve
sticking by following instructions listed.
1. Remove air lter by removing nuts (E)
and sliding off air lter (F)
2. Remove Air lter gasket (G) and place in
a safe protected place .
E
F
G
Service Bulletin for DB30 Mini Bike
The purpose of this service bulletin is to provide instructions on pinpointing and xing
any leaking carburetors when lled with gasoline for the rst time.
Fuel
valve
10/15/2007

3. Remove carburetor bowl (D) by removing
bottom bolt (C)
C
D
5. Remove oat swing pin (H) from bracket.
If needed, remove pin with a pair of needle
nose pliers.
H
4. Check movement of needle valve (J) when
oat (I) is moved gently up and down. Needle
valve should move freely. If needle valve
sticks or stays in one position, the needle
valve will need to be cleaned by following the
remaining steps.
J
I
2

6. Gently remove Float (I) and needle valve
assembly (J) from Carburetor. If needle
valve (J) is stuck, spray carburetor
cleaner on needle valve area and gently
work loose
7. With carburetor bowl, oat and needle-
valve assembly removed, spray carburetor
cleaner up in needle valve hole (K).
I
J
Needle valve
hole
Bottom
View
K
3

8. Remove needle valve (J) and spring
(L) from oat assembly. Note spring
placement for re-assembly. Clean parts
with carburetor cleaner.
J
L
9. Re-assemble needle valve oat
assembly and install back in carburetor
by following instructions in reverse
order. Make sure needle valve moves
freely in and out of needle valve hole
once installed.
Check needle valve
movement when
re-installed.
4