O/T New Project......Boat Motor

Picked up this 1972 Sears; Ted Williams outboard; with a Tecumseh 7.5 hp 2 cycle motor.

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Does not run well and hard to start. Seems it is flooding out. Figured I would take a chance on it. Took the carb off and found that someone has had it off in the past because I could not find part #6 which is labled ELEMENT, PUMP in the parts diagram.

So a carb rebuild is in order to start with. The question I have is... There is a part mounted between the carb and the engine block called a REED and a STOP REED. These parts are showing as NLA.

What function does this reed do.

Really want to do what ever it takes to get this running right but on the other hand do not want to take apart parts I may not be able to get anymore.

Thanks
John

Reeds..... a two cycle engine uses the whole engine block cavity as a "pump". It draws gas through the carb, through the reeds and into the combustion chamber. Best way to explain reeds is to equate them to a "flapper" when the engine is sucking fuel, the reeds fly open, hit the "reed stop" and open the block to the fuel. When the engine firing and not sucking, the reeds relax and go back to sealing off the block. The process is repeated each time the engine fires a cylinder. The reeds are pretty reliable and they are metal. Visualize a small tongue depressor made out of spring metal that is attached at one end and not at the other. It will deflect on suck and relax on fireing. As I said, the reed stop just stops the reeds from opening too far.

I really feel this missing part is my problem because there is nothing to stop fuel flow from the carb to the block. Just a open passage way to the side of the throttle flap.

Thanks for the help
John.

Yup. Do a compression check for giggles. Need about 90 lbs to start that engine.
Parts for that carb may be a real bear to find. Go to the Sears website and see what they have.

It is a flanged tube-like item made out of silicone or similar rubberish plastic. It is stuffed in a hole in the flange of either the carb or it's mounting flange.

If split on the tip it will flood and also not pump fuel too.

Last time I needed one it was a buck or two at the local Sears repair parts dept at the mall. And was a normal stocked item.