On Sep 26, 7:14*pm, Oren wrote:
On Sun, 26 Sep 2010 16:17:45 -0500, "HeyBub"
wrote:

Hank wrote:

1-1/2 turns is the starting point and should run pretty good there.

First, are you sure both screws are for needle valves? Could one be
for the idle? Usually there is only one needle to adjust.

Actually, it has THREE needle valves. One, non-adjustable, inside the carb
to govern fuel flow to the diaphragm - this is a no-float model - and two on
the outside - which I presume are *low-speed and high-speed adjustments.

I found once, when installing a diaphragm, that it can be installed
wrong... upside down it would not function as intended. They do need
to be installed in the proper orientation. Seems silly but it is true.
I put one in upside down and later had to change it (flipped it over)
and it worked fine.





Second, if the carb sits on top of the tank, be sure the screen
(filter) at the bottom of the pick-up tube is not blocked. Also check
to see that water or debris isn't laying on the bottom of the tank.
Cleaning just the carb and not cleaning the entire fuel system isn't
doing much good.

Nah, tank is above the carb and there is no fuel filter.

Hank ~~~assuming it is a 4 stroke engine

It is.- Hide quoted text -

- Show quoted text -

The easy way to check for leaks around the gsaket is to spray a little
wd40 or something similar around the gasket edges. If there is a leak
the rpm will change.