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Using the intake manifold that came with my Loncin 125cc horizontal four-stroke will result in the carburetor intake end being high, with its bore being at an angle of about 17deg from horizontal. I guess that must be OK because that is the way the manufacturer designed it. Any thoughts?

Any 3 hole 60 tooth sprockets for a 4" wheel ( 35 chain) out there?? I bought a blank and had it drilled and they screwed it up. Chain goes from tight to sloppy as you rotate the wheel. If I have to buy another is there a foolproof way to get them drilled perfectly? Thanks.

I have a freshly redone doodlebug db30. 6.5 HP. Everything is brand new. Runs perfectly. Local pickup only in the Sarasota area. $400

Hi guys, Picked up an old h80 Tecumseh . Cleaned the carb and got it running . Changed the oil and was careful not to overfill. It runs strong and idles perfectly but oil is dripping out the breather. It does not smoke at all. If the rings are worn would it not be pumping blue smoke out the...