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Learning merc small 2stroke engines

Spartacus

New member
Hello,

picked up a used 15hp 2 stroke(OD248295). its having issues running after 10+ minutes. Starts right up and will run fine but will die and cant get it started again. I did a full carb rebuit and cleaned fuel filter and replaced fuel lines. Couple of questions:

1. Is there a good place to explain the circuits and working of these carbs
2. Good source to explain the overall design of engine(what all engine linkages do). I really like to learn design approaches.
3. when i was rebuilding carb, there were gaskets on both sides of fuel pump body in addition to diaphram. In the service manual i have, the exploded parts view doesnt show gasket between body and metal cover, just diaphram but later in manual it shows both gaskets. When i took carb apart there were 2 gaskets. Trying to see which one is correct or if it makes a difference.

thank you
 
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