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Post by Jon Ignatowski on Aug 12, 2006 16:04:16 GMT -5
My 1970 Rupp is running horrible! It won't idle and bogs down at higher speeds. I think the jet screws are messed up but I don't know which is high or low and what are the standard settings. Any help would be appreciated!  |
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Post by Jon ignatowski on Aug 12, 2006 16:05:29 GMT -5
It's a roadster, sorry for leaving that out...
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Post by T-Mack1 on Aug 26, 2006 21:38:19 GMT -5
Jon,
First, run out and get a new spark plug. You would be surprised how a new plug can help. And it's usually only $2-$3. Then, side mixture screw is low speed screw, and screw under fuel bowl is the main (high speed). If I recall correctly, Tecumseh factory manaul says one turn out on both, but I like to start at 1 1/2 to 1 3/4 trun out on the low speed. Get it to idle then try to get the high speed. If it bogs down when you hit the gas, your a little too lean on high speed. Turn it out 1/8 turn and try again. Also, if adjusting low speed doesn't seem to do anything, then you need to clean the card.
Tom M.
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