Topic: Quick Caburetor Question 74 550

[wedoo2]

Should the space between the leaf spring and the top of the post for the main jet be flush?  I have an arrow pointing to the gap.  If so, can I just tap it in?  New jet.  It's not upside down is it?  Hard to tell in the manual.

[bwaller]

It should not be flush and is in the right way. (there is an o-ring on it?) Just a bit of lube on the o-ring and push it till it seats.

[wedoo2]

Thanks bwaller, glad you are up this morning.  The seal went in fine and seems to be seated.  Not the most solid thing though, but it is in there.

Please, anyone, look at the following to be sure I have this put back together correctly.  Also, the last picture shows the measurement of the float bowls and it seems it is about 1.25 in.  My manual is saying it should be .89 in.  with the float arm just barely touching the tip of the float valve,  but I have no idea how to shorten that distance.  Manual doesn't tell me how to adjust it.

[johnrdupree]

To adjust the float distance you have to bend the little tang that rests against the float valve.

Look at the second pic.  The tang is touching the valve before the float can get close enough to the carb body.  In this case you need to bend the tang away from the valve a little so that the float get closer to the carb before the tang makes contact.  It doesn't take much bending to get a large change in the float height (fulcrum distances and all that), and it doesn't take much force to alter the tang.  I use a small pair of needle nose pliers.

I don't know if it's just how your picture is oriented, but the float height is typically measured with the gasket surface vertical and the floats hanging down from the pivot. It seems like it would be tough to do with the floats above the pivot.

~john

[Danno]

it looks like you need to try to push the main jet in a bit but I have original jets not replacement jets and if it feels like they are bottomed they probably are

as far as setting the float height you have to bend the tang that touches the needle to adjust it  a little does a lot so be careful
and many have found that a tube of the drain in the bottom will tell you more than measuring by hand

[dave500]

if the main jet is the right way up you should be able to see the size stamp,if you had jets without the o rings on its easy to put the ring on the wrong slot then the jet will be upside down,i think i can see the size stamp on that one?if they all look like that your good to go,,good job on the carb cleaning!

[Deltarider]

Warning: Don't start bending floattangs unless you're absolutely sure they're off. That's only when a PO has messed with them. Personally, I have yet to see the first floattang that needs adjusting.

[dave500]

if you notice the tiny damper action of the float valve needle?just let the tang touch this,not depress it.