Question about Coleman Powermate Premium Plus 6250W Portable Generator

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Coleman6250 Generator PM0545007

Motor will not start. Taken to repair shop twice - new spark plug, cleaned the switch. Motor started once each time after that. Tried later in the day, won't start. Apparent intermittent electric failure. Cannot find Briggs and Stratton serial number to try for shop manual. Any suggestions?

tadeegan

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I had the same problem. It turns out the on off switch for the engine was bad. To check if this is what is wrong with yours simply disconnect all of the wires at the on/off switch. If the engine starts and runs, then the switch was bad.

Posted on Nov 04, 2008

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Posted on Jan 02, 2017

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Starts runs great turn off the it won't start again


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How do I assure cold start?


A good healthy spark is the first place to look, because you say once running and warm it is fine it doesn't sound like a carb or fuel delivery problem. Remove the spark plug and check condition, gap and color and make sure there is a good clean spark. Check plug cap and lead is in good condition. Replace them if they are suspect. They are the cheapest and quickest and easiest things to check/replace and go on from there. A warm engine doesn't require such a good spark, so start looking at that first.

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EU3000is inverter generator. Why won't it start?


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Oct 03, 2015 | Electrical Supplies

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I have a Coleman Powermate pm0545007 generator with a B&S OHV model 200000 engine. It has always run fine, but after running it for about 3 hours last week, I can't start it. It has no spark. I...


there should not be pinched wires...

if you mean "how do I bypass the low oil SENSOR" then the answer is to just disconnect it and tape up the end or snip it off in a location where it won't ground out...the way these engines kill the spark is by grounding the cdi coil wire...so fix that pinched wire and youre probably good to go...dont disconnect the low oil sensor unless its causing trouble....having low oil protection is good and might save you from blowing an engine

Jul 02, 2010 | Coleman Powermate Premium Plus 6250W...

3 Answers

Troy bilt 5550 generator no start please help


fuel, fire, mechanical. Miss one and she won;t run. Are you sure the gas was good? Not some old can laying around that may have turned or become water contaminated? If it was fresh gas, then take off the air cleaner and spray a little wd-40, or ether, or brake cleaner whatever is flammable into the carb throat. Just a 1 second shot is all it should need. Try and start with that. If it starts and then dies quickly, still a fuel problem. maybe a gasket is damaged, or the jet is clogged. When you said you checked for fire, you acutally took the plug out and had it grounded while spinning the motor and saw spark? If you saw a hot spark then you have eliminated fire. Mechanical not likely if it was running well a short time before. If a valve was damaged, it would still run but not too well. My gut feeling is it is related to fuel.

May 25, 2010 | Briggs & Stratton Power Products 5,550...

1 Answer

Have a coleman powermate 6250 model #pm0545007,won't start,what to look for?


Fresh Fuel
Clean carburetor if stored with fuel in the tank and wasn't shut off
Clean fuel filter
Clean air filter
Proper oil level
Clean spark plug (just replace it, it is easier and faster)

May 20, 2010 | Coleman Powermate Premium Plus 6250W...

2 Answers

Gen. wont start been stored since 03 bought new used twice


As for checking for a spark, remove the plug from the engine, plug in to lead, then rest it somewhere convenient, with the threaded end to ground. (ie touching the chassis or frame)
The low oil indicator may be on the side of the engine, but I'm not certain.
If you discover that the spark is good, it could be a timing problem.
If there is no spark, it's probably the magneto.
I hope that helps.

Jul 24, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

Coleman6250 Generator PM0545007 - Won't start/run. Can get it sputering with starting fluid, however, not a "pop" on gas. New gas, blew out line & carb but still think no gas getting thru carb. Plug...


Most gasoline engines need three basic things to run: proper air/fuel mixture, sufficient compression, and a properly timed spark. Check the easiest, cheapest things first, then check the "Gee, I forgot to turn on the gas" kind of things next, then work your way onwards from there.

Compression can be guesstimated with the proverbial thumb-over-the-empty-spark-plug-hole routine as you turn it over casually to check compression. If it doesn't blow your thumb out of position, you could have a hole in the piston (overheating response) or a stuck or damaged intake or exhaust valve.

Check for fuel flow by carefully disconnecting the fuel line to the carburetor and letting some run into a tin can (no styrofoam coffee cups, please). It should dribble freely. If not, you have to back-track the line and find out where the blockage is.

Spark is one that sounds like you've already tested (spark plug out of the cylinder head, hooked up and laying on the metal engine as you turn it over?) so check timing. You will probably need a manual for this test, although a good estimate is that the plug should fire just a wee bit before Top Dead Center position of the piston. Like I said, a manual comes in handy here.

From what you've mentioned, though, I'd start trouble-shooting at the fuel flow part first.

Good luck,

GRB


Jun 07, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

WONT START


Not so many reasons she won't start. 4-Strokes are Simple!

Here they are:

Motor:
Fuel Tank-> Fuel Line-> Fuel Filter-> Carb-> Intake (Valve)-> Piston-> Exhaust (Valve)-> Muffler

Carb (Old Style):
Fuel Side:
Fuel Bowl-> Float-> Needle Seat-> Fuel Ports (Venturi)
Air Side:
Air Filter-> Carb Air Intake-> Butterflies (2)
(Clean 'em ALL!)

Hardware (Motor):
Rotor (Magnets)-> Magneto (Ignition Coil)-> Spark Plug Wire-> Spark Plug-> Cylinder Head (Spark Plug Ground)

Ignition:
Kill Switches (Seat, Clutch, etc.)-> Spark Plug/Ignition Coil-> Ground
Key Ignition-> Battery->Starter/Generator

If one of those fail.......= Non-Starting 4-Stroke!

Fixes-
Fuel:
You are either getting too much, or too little. Too much = Carb.
Too little = Carb. Therefore, tear down the Carb (COMPLETELY-Careful!) and clean it up.

Electrical:
Grounding out the System (Kill Switches)
Battery-> Ignition-> Starter.
Magneto->Plug Wire->Plug (Check 'em all!)


May 28, 2009 | Mtd Garden

3 Answers

Just won't start


check the spark plug after a failed attempt to start. If dry, then no fuel is entering engine.
Did you leave old fuel in carb? if so, your carb probably is dirty: old gasoline deposits varnish, gum, and you will need to dissassemble carb and clean it.

Nov 14, 2008 | McCulloch 13HP 338 Cc Portable Generator #...

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