The petcocks (brass valves) are for compression release. You open them for starting. Without opening them you will have a hard time turning it over. For starting, open the petcocks, grab the flywheel and pull it over. Did you notice the inside of the flywheel rim has notches in it to give you some traction when cranking it?
Have fun. I have spent many happy moments and lots of unhappy moments performing the above procedure.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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