Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1918-03-31

~ high speeds tho shutter u will
N be quite FAR open, and 80 there vii
be 3 suction on the high speed nov.
fie D also. from which n spray Will
nov tsaue and be carried TO the
mixing chamber with the auxiliary
air eutering past the shutter,
You will observe that the carbur'
Y stor has two adjustments the
ameunt OF air by means Of tho
oupeW d and the amount OF gas by
meone Of the screw A.
otve below the method OF ad-
5usefn6 ~ given by the makers,
Ingm11ne1ou and Adjustment Stand.
ard Model u.
The carburetor ~ fed by gravity,
shonId bN 50 placed that bottom of
boof ts nj least eight inches below
bos}o>h OF gasoline tank. II fed by
pressure. one pound is sufficient
! amd should never exceed two
~ that all connections between
intajse valves of motor and car
bure@or are absolutely free from air
oe@npreesjons ~ neayly alike M pos
eoh1e and the ignition system should
~ glving . rood. hot spark at each
piue ana plugs should bo clean.
W1tk points set evenly and In most
snDog 81 twenty-five 20 thirty thou
ooQ6ths.
a Mice gasoline needle valve ~"
q 1ut, after closing by gently turn
W[ - the right until seated. open
" 1npning to left. three -fourths to
n1o1la should be tight enough to
hej0 needle firmly TO place.
Notice air adjusting screw "B" on
cut; this should be so adjusted thai
end Of screw Ia about even with
end OF ratoh- -set-spring.
he preliminary adjustments OF
| the carburetor lust mentioned may
- made before attaching.
Netice choker for starting In the
I. ,alP intake Of carburetor. This should
| ASS Arranged TO permit of closing
. compfeesly tnot partially in order
20 eaust motor to draw or gas for
sasx starting.
ohouid motor hesitate or pop
haek" IN starting pulling out tho
oh0&er- button will cause carbu-
retor 10 give up excess fuel which
Win aid motor In warming up, and
the car should be driven with
chohsr partially closed until the
motor fAs thoroly warmed up.
u starting on batteries have
spark retarded. If starting on mag.
nsto. have spark advanced one half
Open throttle nearly fourth OF
the way. start the motor and up
on TN running, partially release
oker, otherwise motor will prob
ABLY load up with gas and stop
q After motor has started close
q Ethrcttie 10 moderate speed. which
'xmcans nearly closed AZ this polnt
Leiose gasoline needle -" a very
{littls st time until motor runs
kpmoothly. allowing motor 10 run un-
Plii thoroly warmed up before max
Ing final adjustments
~ The next step IL TO get proper ad
justment OF air valve, To accom-
o-plish this. air valve adjusting screw
Z ''B" should be turned 10 the left 10
l<back out and release the MIR ppring.
prs bout one-eighth Of tYzo NJ al
rfir1e. until motor begins 10 sinw
down. This indicates that air valve
spring Is now little too loose
Whereupon " should again be
tghtened littls bv turning 10 the
(inht. one-eiRhth OF a turn al /,
lime. until motor begins to SLOW
fext advance spark two-thirdg of
10 entlre travel. Now opeu throt
10 quickly and as far as possible
bpon doing this the motor should
peed up promptly and quickly mi
hesitates or popping hack" |al
card. a httle more gas should hr
eieased at needle valve "a" %,
prnfng 70 the left very little at !
dine, and N may ALSO he necessary /
tighten the air screw q little
bore, but this should not hr done /
nIess absolutely needed wait Tor |
rotor to- settle and again 0p-n
hrottie quickly as before Repeat
bese trials until the proper ud- /
vstment IL obtained The object .
eing 90 have Just enough gas and .
Of any more TO allow the motor I
pick up promptly and smoothly Z
hen throttle IL suddenly opened /
be spark. as mentioned before. be- |
g At about two-thirds ~ It's ad- /
knce or travel
The highest economy OF fuel viii |
obtained by adjusting with the 7
screw n" released to the lem I
bd the gas valve "A" closed Go the I
40. as nearly As possible 20 OBJ I
In the desired results.
Jamited Adjustment CarburctOr,
AFor commercial car purposes the
H4iT model " truck carburetors
a-2e made meddle proof by limiting
~ range of adjustment "A. on tho
y needle and adjustment n" ON
.xk eir screw The limits are 30