Posted by Calif. Farmall on January 20, 2011 at 15:06:17 from (76.220.192.215):
In Reply to: BACKFIREING posted by JEFF NC on January 20, 2011 at 10:27:48:
HI- sounds lean if it will start and run, if it's lean it will pop through the carb , too rich it will pop out the exhaust pipe when throttling down. Try to adjust the main load screw out 1/8-1/4 turn at a time and even the idle mixture screw a bit to the right to add more fuel. One way to check the mixture is goose the throttle quick from idle to full and it should rev up quick with out coughing back through the carb. If timing and ignition system is good and you can't git rid of the cough you may have a small passage way, air bleed ect. in the carb restricted and need more work. Write back if you still have problems and I would be happy to help, tractor carburetors are my specialty - Dan.
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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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