Reverse primer?

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voo2doo

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I have never came across this problem before so I'm stumped!
I have just built my 28.5cc engine and shoved it in my Leo.When the carb was primed it went in reverse!!:scared: I mean,when the primer was pumped the fuel went from the top(intake)back to the tank and the bottom of the carb(return) was pulling fuel in! totally reversed?
The lines were on the right way and there wasnt a problem with the old engine.
Any ideas folks
Cheers
J.
 
is the carb creating a vacuum (sucking) found this on youtube Carb Maintenance don't know if its any help to you mate
 
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Cheers Rhales,but I've sussed it.....fuel lines were on the wrong way....(blush,blush!) what a dozy bugger.
Cheers mate
J.
 
these help keep the ventrui hole open for the path to the diaphram.

sand/dirt can get into that area, and pack in behind the diaphram, causing damage to it, or at the least, stopping it from moving, and if it don't move, the carb doesn't pump fuel.

they are a nice piece. a bit on the pricey side i think, but not overly bad.
 
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