40 hp Johnson
"Andy" wrote in message
om...
My other question is with a motor problem. Right now when I give it
full throttle it will bog down, then speed up and back down again,
then sometimes almost or will die. At lower speeds it seems ok and
idle its perfect no hiccups.
Sounds like a typical fuel starvation problem. If you are idling, and then
go to wide open throttle, does it run strong for a few seconds before it
starts to bog down?
If it bogs immediately, or has difficulty transitioning from idle to WOT,
then I would suspect the carburetors. If it runs strong for a few seconds
and then bogs down then it is more likely that the problem is that not
enough fuel is getting to the carburetor(s).
The first thing you should do is get yourself some sort of repair manual for
the motor. Ebay is a good place to look. Having the manual will help you
find any fuel filters that there might be and the fuel pump.
A quick test you can run is to squeeze the priming bulb while the engine is
bogging. If this makes it run better then it is an indication that either
the fuel pump isn't providing enough flow or a filter is clogged.
Also, make sure that you have the vent open on the gas tank!
Rod
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