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Posted on Jan 02, 2017
SOURCE: Powermate 6250 loaps.
I took a new generator out of the box, filled it with oil and gas then started it. The govenor /carb linkage was moving violenting back and forth and the engine was backfiring.
I was able to get it to settle down by holding the linkage and closing the throttle plate a little but it would resume surging and backfiring when I let go of the linkage.
I tried again several weeks later. This time, after babying the linkage to get it to settle down, I moved the linkage about a 1/4 inch (which closed the throttle plate slightly) and lightly secured it in place with a ty-wrap. After running 10 minutes it finally settled down to where the backfiring stopped and the linkage stopped moving.
It was still okay after powering a heater motor and light.
I'm thinking that the problem with this engine is just that it needs a long warm-up time. I know very little about engines, so I could be wrong.
Posted on Dec 14, 2008
Sound like you've done things in the correct order, tecumseh's are notorious for carb problems if you let as sit in them. Backfiring is timing related (flywheel key) or valve problems. I would take a closer look at the exhaust valve I don't believe it is closing all the way.
Posted on Mar 16, 2009
the instructions says the voltage regulator is automatic/digital. when you check the voltage is there any load on the generator? if applying load to the generator doesn't help, you can manually change the motor speed where the governor connects to the carborator, but it may change the frequency, but the regulator may fix it
Posted on Apr 13, 2009
First thing to check is to see if the generator is actually turning--couplers sometimes fail. You need some electrical skills and a voltmeter to trace down problems in the generator beyond checking the health of the two brushes that supply current (< 115 volts DC) into the rotor field circuit. You can find wiring and schematic drawings on the Troy-Built web site, just look for the 030248 model. Another person that I worked with had a similar unit with the same problem. It looked like the voltage regulator board was the problem, but haven't heard back if he had fixed it.
Posted on Sep 26, 2009
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