I have a generator with an 8 HP Briggs & Stratton engine about 15 years old
and hardly used. I have two problems.
I seem to be unable to completely eliminate gas seepage from where the two
halves of the carb meet. In this last attempt I tried polishing away any
nicks, and using a new gasket with Permatex on both sides. Still have some
seepage. I don't know what else I can do. Fortunately it's a very small
amount and wouldn't prevent me from running it if I need to.
The other issue I'm having is that it's not holding speed very well as I
test it with varying loads. And I think it's because I've done something
wrong with the springs.
Here's the basic setup:
The governor arm emerging from the engine is connected by a wire rod to the
throttle near the top of the carb. A spring attached to the end of the gov
arm pulls downward and the speed adjust screw controls how hard that spring
pulls. Adjusting that move the plastic block in the metal plate (the ?? in
the photo). Not sure the point of that but maybe it's used in other engine
In this side view I've moved the plate away a bit and you can see the
spring referred to above. Here's the part I can't remember. There is a
fine wire spring wrapped around the throttle rod. The top end is bent into
a hook shape that presumable must loop around the throttle shaft. But
where does the bottom (bent into a small hook shape) go? To the gov arm?
To some part of the plate shown? If the top does indeed go around the
throttle valve shaft it can't be exerting any force there but I guess it
could be pulling on the governor arm. I'm not sure how that makes it more
senstive to speed regulation but it's there for a reason. Anyone know for
sure how this should be?