Question about Coleman Powermate 7,000 Watt 13 Hp Portable Generator #PM0497000

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Cant get my power ate 8750 to start. Ran fine last year. Have changed spark plug, aded fuel stabilizer, will starting ether help?

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My son in law drained the carborator 3 times to get the old gas out. Also put in an additive to the gas. He figured our unit had sat too long and the gas was getting old. It is running fine now. Just need to figure out how to idle it down.

Posted on Jan 27, 2013

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Posted on Jan 02, 2017

kel1guy2002
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SOURCE: My Coleman Powermate 7000 won't

I not you said you "checked the oil level" My experience with most portable generators is that they must me positioned as level as possible and the oil level must be fully serviced as full as you can get it without oil leaking back out of the dip-stick hole on units WITHOUT an extended dip-stick. Unless those conditions are met the low oil level sensor ends up presenting a false low oil signal and it grounds out the ignition. DO you have Spark at all? If you do have spark and it still does not run respond with the MODEL number off of your ENGINE and I will show you where the main fuel jets are located so you can make sure the orifice is clean.
Some units have a fuel solenoid that presses into the main fuel jet recessed area and shut off the fuel to the carb. This is also an area that debris causes havoc.

Thanks,
Kelly

Posted on Aug 29, 2011

  • 2 Answers

SOURCE: Coleman Powermate 10 HP Generator shuts down after a few minutes.

I have an HM100 on a 5500 watt gen with the same problem. This motor calls for a J17 spark plug, but I found using a J19 (hotter) plug solved the problem. I think the J17 doesn't get hot enough for a complete combustion burn so it act like fuel starvation thus resulting in the black sooty and wet plug.

Posted on May 18, 2010

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SOURCE: it's 4 yrs old but

After four years the magneto will become demagnetized. Get a small magnet and find the spot on the flywheel where there is some steel which will be slightly magnetic. You can just stick it on there for four days or work it and tap it lightly on the steel for many minutes. Two hours should be enough to get it started and from there it becomes very strong as it revolves past the magneto's steel core. They use to use Strontium alloy to make it keep it's magnetism but they are cheaping out on all steel alloys now. When you can get it to draw in a steel bolt or some other ferrous item so it goes clack against the flywheel, then you have it ready to fire. If it has a compression release, make sure that is all the way over to start, then when it fires bring it back towards you to get full power. I left mine without gas in stroreage for two years and it just barely started. I pushed the plug-in GFCI center buttons a few times and it came to life.

Posted on Apr 10, 2011

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