BOMBARDIER 1982 Shop Manual page 182

i
SECTION 02 ENGINE
SUB-SECTION 09 (CARBURETOR AND FUEL PUMP)
MIKUNI CARBURETOR FLOAT LEVEL
ADJUSTMENT
@
@ Correct fuel level in float chamber is vital toward
maximum engine efficiency . To check for correct float
level proceed as follows:
- Remove float chamber and gasket from carburetor.
- With carburetor chamber upside-down, measure
height "H" between float chamber flange rib and top
edge of float arm.
Ex.: VM 36 carburetor
Float arm height dimensions :
CARBURETOR VM 28 VM 30 VM 36
DIMENSION VM 34
H
(inch)
.59 -:::: .66 .86 ~.94 .66 :::::- .74
(mm)
15 ~ 17 22 ~ 24 17 ~ 19
o
NOTE:
As a general rule, the float arm must be par-
allel with the flange rib.
OA r!C
ibn
To adjust height "H":
- Bend the contact tab of float arm until the specified
height is reached .
The illustration below shows which part of the carbure-
tor begins to function at different throttle slide openings.
Throttle slide openings
n
~[
/
-.J
,
1
J
\
Jl
1
t
I I
\
)
X-I I
-y
J
,,.
........
. /
..
Ii.
e
@ @
Idle screw and pilot jet _
CD
Throttle slide cut-away
o
Needle, taper & needle position
®
Needle jet
24 Main 'et
O NOTE:
For fine tuning refer to Section 09-02
technical data (Altitude VS Temperature Charts)
and to Section 04-03 (Spark Plug).