[Ric mcDade]

I would look at fuel delivery first, make sure tank is clean, take any fuel filters out of the equation, fill your tank and then pull the line from the carb and let in drain in a can, make sure the stream is large and consistent. If it is, then take a second look inside the carb and make sure you don’t have anything upside down or backwards. Ck your reed block/ carb, and make sure your pulse holes are line up and you don’t have a gasket blocking it.On your throttle, you need a return spring on your pedal, and not just the carb.

[oldmeatwad]

Thanks Ric. Will give it a go and see if it improves.

[Jim Derrig]

My WAG is that you’ve flipped the relationship between the gaskets and the diaphragms on the carb.  The gaskets go on the bottom (closer to the ground when carb is installed) and the diaphragms go on top.  If that’s not it, there could be an air leak, such as from a bad mixture screw gasket.

Once you’re convinced that the fuel path is rock solid, the next culprit is a weak spark from a bad stator (though my experience is with Leopards and not PRD’s)

[oldmeatwad]

Hmmmmm – Going to check that because I believe i placed the diaphragm and then the gasket.  I remember this as I though it odd but the diagram was clearly showing it in that order. Going to pay close attention this time. One I verify it, Ill reassemble and look to Rics suggestions.

BTW – should the fuel line be completely without air bubbles? I notice that I get what looks like solid fuel connecting in the line near the carb, but near the fuel tank, there seams to be a dry spot. I discounted it as there always seams to be fuel in the line where it counts.

 

 

[Ric mcDade]

Make sure you tie wrap the fuel line at all connections, but I get minor air bubbles too

[oldmeatwad]

Got sick of playing with it. Installed a new carb and problem is 100% solved. Thanks for everyone’s advice!

[Author]

Posts