Question about Generac 13,000 Watt / 13,000 Watt Home Standby Generator
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Posted on Jan 02, 2017
The original part number your looking for is 78298 (Plastic tank valve). It has been superseded by part number 080270 and it it available here:
Part Mfg: GENERAC Part Number: GEN 78298 This Part has been superseded Part Number: GEN 080270 Price: $5.34
When you do parts searches in the future for your generator use 9856-0 (Powerplus 5000Watt) for the model number.
You can also order the 080270 tank valve here:
If you enter the part number on the search page.
Thanks for using FixYa.
Posted on Jun 10, 2010
I had the same problem. The engine was running fine but there was only about 1.2 volts coming out of the generator on each leg. I decided to try flashing the field first since it doesn't cost any money. I used a 12 volt dc car battery, and a extension cord. You do not use the green ground wire. you hookup the male end of the cord to the female receptical of the generator outlet. With the generator running you then hookup first the white wire to the battery, now with the black wire you connect it to the battery for about 5 seconds. when I did this my circuit breaker popped and so I reset the breaker and checked the voltage and it actually worked I now get 120 volts ac. It actually worked but be carefull and hope this helps.
Posted on Jan 13, 2012
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