Question about Coleman Powermate Premium Plus 6250W Portable Generator

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I have a coleman powermate 6250 generator and i am not getting any sparks to the spark plug can someone help me out with this problem

Its been sitting up for 6 months and it wont start i checked the plug and its fine ,theres no spark coming to the plug,the gas is fine ,the oil is fine what could it be

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The easiest way to do an ignition check is to MAKE SURE the right amount of oil is in the engine, make sure there's FRESH fuel in the tank, and then where the on/off (I/O) switch is for the engine, not for the generator half but for the engine itself, there should be atleast one if not a cluster of wires with disconnectable links on them. Disconnect them, those are all of your ignition wires from various areas of the engine and generator that will kill the ignition if something isn't right. If you disconnect the main one from the on off switch, there should now be a spark but be careful because with all of that disconnected, you won't be able to shut the machine down easily, you'll have to remember which wire goes where that you disconnected (good idea to photograph them before you disconnect more than one wire) and either reconnect them, choke out the engine which may not kill it either, or disconnect the coil to spark plug lead from the spark plug. An easy way to check for spark without disassembling anything first, is to get a long Philips screw driver with a plastic or wood handle, and stick it in the coil lead where it would go on the spark plug. Hold the handle and bring the shaft about 1/8" or less without touching it to the tip of the spark plug that's metal and exposed. Have someone pull over the recoil once and check for an arc going from the screwdriver shaft to the plug. Make sure the I/O switch is on and being in a dimly lit area helps to see the spark as well. Don't worry about getting zapped, it won't kill you an it doesn't hurt, just feels like a violent vibration isolated to the area you are touching and instinctively your body will release from it and you should pull your hand back. But, if you follow my instructions and use the correct handle material screwdriver and don't touch any metal, you won't be shocked, promise. Chances are, you DO have a spark and there is nothing wrong with either the coil or the plug as it rarely ever is in no-start situations. More than likely your fuel has gone bad and is not making it to the engine. You can even avoid all else I said, and simply pick up a can of carburetor cleaner NEVER STARTING FLUID, and once you have the air filter completely removed and can see the throttle plate, hold it open, spray a quick shot of the carb cleaner into the engine, and give it a yank. I almost guarantee it will try to fire on the carb cleaner and once it runs out, will die again. That means you aren't getting fuel and need a new carb. Yes, a new carb, because taking it to a place to have them remove it, rebuild it, and reinstall it while trying to sell you other services will be infinitely more expensive than a simple $50 carburetor.

Posted on Dec 03, 2014

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You will have to remove the flywheel and check the ignition out there.

Posted on Nov 13, 2014

  • dennys23601 Nov 13, 2014

    no the fly wheel does not have to come off.


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Posted on Jan 02, 2017

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SOURCE: Coleman Powermate 6250 generator - shut off

the usual reason is a stuck float in your carburator , can be caused by dirt/rust etc , remove carb bowl and clean , there is also a very small needle valve which is attached to this float ( metering needle ) these can leak.
if all else fails always turn off the fuel supply to the generator whilst not in use

Posted on Oct 21, 2009

  • 169 Answers

SOURCE: checking the gas and oil levels?

There isn't really a guage to look at . What one does is to take out the plastic plug on the side of the engine and with the engine cold and level make sure that the oil level comes up to the lowest thread where the plug screws in.

You really should have a manual, so if it's missing look here for which ever "PM" number is printed on the tag on the end of your generator.


Posted on Jan 07, 2009

  • 98 Answers

SOURCE: powermate 6250 wont start

try checking the WKM setting...i dont know what its called in english....but we call it WKM ...on my gen. its a peice of metal (with OHV written on it)...if you don't know how to set it...send me an email at

Posted on Oct 11, 2009

  • 843 Answers

SOURCE: Coleman powermate with 10 hp Tecumseh. Never

There are a couple of switches on these things, and their positions and the little icons on them are NOT intuitive - well maybe they are intuitive to the under-20 crowd. I lent mine (which starts right up) to a friend who spent an hour or two pulling the cord before he noticed how to turn it on. I'm not trying to be a smart-alec. I hope this helps.

Posted on May 17, 2010

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SOURCE: I have a Coleman Powermate

when the engine sets for a long time the gas can seep bast in to the cylinder and their will be some gas you will need to change the oil and take the spark plug out and air i suggest you squirt a small amount of oil in the cylinder gas in the cylinder can wash out the lube to the rings and cause undo wear and start smoking turn the engine by hand slowly to allow lubing of the rings the gas seepage is most likely caused by a float that's not set correctly you may need to rebuild the carb with a kit around 20 bucks ans easy to do at least the clean it well to remove schlack that gas leaves behind when it dissipates and can cause issues.
replace with fresh gas and run the engine and it will smoke for a couple mins do to the oil in the cylinder remove the spark pug after running a couple mins and clean or replace the engine should be fine following the steps above. hope this helps

Posted on Aug 31, 2010

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