45" Dumas scarab, a classic.

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First test run after the new pipe and prop, night and day difference.


i'm having problems with it staying running and starting after it gets warm. i wonder if the coil is bad, its like 30 years old.
 
I would try 1 1/2 on low and high you could need a carb rebuild or possible new seals on the crank.Try richen it up first if it don’t idle lean it out but try the richen setting on high I haven’t run that carb in over 10 years.You could try a 257 carb there cheap enough plus bigger then what your running now.
 
I would try 1 1/2 on low and high you could need a carb rebuild or possible new seals on the crank.Try richen it up first if it don’t idle lean it out but try the richen setting on high I haven’t run that carb in over 10 years.You could try a 257 carb there cheap enough plus bigger then what your running now.

So, I bought a carb rebuilt kit, while going through the carb, I found water in the carb. Bleh. At least I figured out the problem. Switching to the fuel bladder setup soon.
 
a carb upgrade would be a world of good. those carbs dont age well . also the 167 was trash from jump.
a little at a time . u will have fun learning
 

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