Carb Float Adjustment Clarification

CL77NOW · Post by **CL77NOW** » Wed Jun 01, 2011 7:03 pm

almost discovered.
i measured it all ways.

the float level fits best at #3 at the gasket level notch.
if i set it to #1 upper body gasket mount the floats drag the top.
if i set it to #2 rim
the 7.5mm B.Silvers, distance to the jet fails.

i vote #3 below. at the body cut out. ( i think that is what it for )

LOUD MOUSE · Post by **LOUD MOUSE** » Wed Jun 01, 2011 7:32 pm

Ya wrong with this one feller. .......lm

CL77NOW wrote:almost discovered.
i measured it all ways.

the float level fits best at #3 at the gasket level notch.
if i set it to #1 upper body gasket mount the floats drag the top.
if i set it to #2 rim
the 7.5mm B.Silvers, distance to the jet fails.

i vote #3 below. at the body cut out. ( i think that is what it for )

CL77NOW · Post by **CL77NOW** » Wed Jun 01, 2011 10:02 pm

thanks for the 1 liner.

all we have are the books the books are wrong, ( cept ,set float to 22.5mm) end.
we try to discover this arcane carb setting and ,it is not easy.

i have 3 choices
one jams the float
one makes 7.5mm wrong
and the other makes both happy.

so what is right.?

jensen · Post by **jensen** » Thu Jun 02, 2011 4:47 am

Hi,

I didn't follow the books, I followed measurements thus air / fuel ratio data, and at my CB72 I choose for nr. 1 minus 2,0 mm, so 24,5 mm. In this case the bike is not leaning out, and not to rich, when standard jetting is used. I'm at sea level, in a sea climate, remember, I'm talking about CB72, and won't necessary being good for a CB77 ! I measure this distance when the carb is horizontal (on it's side) and TOUCHES the pin of the float needle.

Jensen

e3steve · Post by **e3steve** » Thu Jun 02, 2011 2:53 pm

When all's said & done, the 'right' method results in the correct relationship between the surface-height of the fuel in the bowl, the jet holder/emulsion tube and the carb's choke/throat/venturi (whatever you wish to call it).

Ed knows more about these Hondas than most of us here, put together; his "line of sight" method, as delineated in posts 4 & 8 here, works for him and others.

I use my Honda metal float height gauge; I have PW26 carbs. She runs sweet.

jensen · Post by **jensen** » Thu Jun 02, 2011 3:17 pm

Hi Steve,

I found this height before I knew this forum or Ed. I always sticked to it, and it works on my CB72 's.

Jensen

CL77NOW · Post by **CL77NOW** » Thu Jun 02, 2011 3:41 pm

bless you for that so clear photo STEVE, and works out same is my photo's (tried all 3 ways)
that gauge is it 22.5mm? CL77 26MM throats.?

e3steve wrote:When all's said & done, the 'right' method results in the correct relationship between the surface-height of the fuel in the bowl, the jet holder/emulsion tube and the carb's choke/throat/venturi (whatever you wish to call it). yes,, I do believe it all must be correct !!! ever inch.

Ed knows more about these Hondas than most of us here, put together; his "line of sight" method, as delineated in posts 4 & 8 here, works for him and others.

I use my Honda metal float height gauge; I have PW26 carbs. She runs sweet.

i can't imagine working backwards
put in correct jets for sealevel (then plug in 5 gas analyzer or the analog equiv, LOL)

then working backwards to correct float level. that must be a long row to hoe.
lucky its 22.5mm and only 3 ways to do it.
dang luckly Steve you are the hall of fame.. i owe you a 6pack!!

all comments , stock jets, etc.