Top 20 Coleman Powermate Proforce 2500 Generator Questions & Answers


How old is the unit? Gas in the oil indicates sticking or broken piston rings. If it has sat for a long period, best thing to do is spray some sea foam into the cylinder, run it under heavy load for 30 min and hope it seats. If it still does it, chances are your ring is craked. But most often they stick allowing blow by. Also make sure plugs are clean, and not fuel fouled.

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High amperage draw on motor on startup

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few things to check first i would check my compression with a compression guage most small engines wont start easily if it doesnt have atleast 100 psi anything less makes them very hard to start this will also identify if you have leaking valves stuck valves or piston ring problems ect. next check to see if you have a spark. sometimes the spark plug is the culprit but you can check to see if you have a spark sever ways one is to disconnect the spark plug wire and in sert a phillips screw driver in the clip that holds the tip of the sparkplug and hold the well insulated handle and hold the shaft of the screwdriver near the block or head of the engine and pull the starter you should see and or hear a healthy spark. another way is to get a timing light and a 12 volt battery to power the timing light and connect the battery negative to the block of the engine tested clip the sensor lead on the spark plug wire while its still connected to the spark plug and it should flash when you pull the starter rope. or you can get a spark tester a good one has a neon light in it and a ground clip hold the spark tester to the sparkplug wire and it should flash as you crank the engine. if you have compression and spark next check your carb. assuming it has fresh good gasoline with no water in the gas your carb may be gunked up, clogged with trash or stuck float. remove carb and dissasemble starting with the bowl make sure its clean in there and the float and float valve isnt sticking then get a torch tip cleaner and ron the fine cleaning wires in ever orifice you can find. pull the main jet clean the tiny holes in it and spray carb cleaner in the carb body and parts. if it has adjustable jets pull them and clean. use compressed air to clean it out also. do not pull the welch plugs just yet if you do you will have to get a repair kit and takes some skill and patience to replace. reassemble carb carefully make note of were all the parts and pieces come from and replaces them. before removing adjustable jets count how many turns it takes to screw them in and only lightly seat them so when you pull them out you may return them to were they were originally adjusted. there are tiny holes near the butterfly throttle plate in the throat of the carb make sure they are clean and clear. if it is really gunked up there is carb dip but do not soak longer than recommended on the can as it will dissolve brass and ruin your carb. if you still cannot get it to run or run right. you can buy a new carb on ebay recheck valves or just bring the darn thing to a professional. good luck!

Coleman... | 162 views | 1 helpful votes


drain the oil to the specified level and run the unit to clear any oil left where it shouldn't be then replace or clean your sparkplug

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Drain the oil again, and re fill ! too much oil will blow engine seals

Coleman... | 1,422 views | 0 helpful votes


Hello Yudhi, I am going to try to answer this with very limited information from the question. If the generator has sat for a long time the field coils contain a small amount of residual magnetism. After a period of time the magnetic field in the coil will slowly dissipate until the generator will no longer produce voltage. There is a very easy process to re magnetize the field coil using an electric drill. It is called field flashing. Here is a link that explains the process. http://www.perr.com/tip16.html This method will get the generator producing power in a few seconds if you have lost your magnetic field. If this method does not work you have a problem that is a little more involved, depending on what type of generator that you have. The two types are brush-less and those that use brushes. More than likely you have a brush type unit. The brushes and slip rings will tarnish over a period of time and cause the voltage regulator to work harder and possibly fail. Here is a link the a very handy tool used to clean the slip rings. //docs.google.com/viewer?url=http%3A%2F%2Fwww.flightsystems.com%2Fpdf%2FSlickStickSP.pdf If your voltage regulator has failed, it will need to be replaced after cleaning the slip rings. Another thing that can cause loss of power are bad brushes and a tarnished commutator. I have cleaned tarnished commutators by taking out the brushes and cutting down a large pencil eraser to fit into the brush area. With the spark plug removed and the eraser forced against the commutator spin the generator with the recoil start and check every five pulls to see if the tarnish is removed. When the commutator is visibly clean replace the brushes and start the generator and check for power output. Hope this helps. I would first try the electric drill method and go from there.If this helps, please give me a positive rating. Thanks, Michael Burke

Coleman... | 247 views | 0 helpful votes


I also have a PM52-2000. Since I keep the generator outside, I have ruined more than one carburetor over the years by letting water get into it. I have found perfectly good replacement carburetors for it on eBay by simply searching for Tecumseh 5 HP Carburetor. Today, I searched on eBay and found 142 of them, all new, some costing as little as $18.00. I just finished installing a carb I bought off eBay last year. It fit perfectly, adjusted easily, and runs perfectly.

Coleman... | 381 views | 0 helpful votes


Hi, basically the carby needs to be taken apart. The float and needle which regulate the fuel flow into the carby bowl need to be checked. Remove the bowl, float and needle and blow out the seat where the needle sits, refit the needle and float and gently hold the float level with the carby body with the fuel connected. The fuel flow should stop until you lower the float. Let me know if you get stuck. Regards Phil.

Coleman... | 197 views | 3 helpful votes


Hi,
The small permanent magnets that start the field producing the electric have gone flat or lost their charge.
To get the generator part working again you will need to "flash" or reintroduce power back into the magnets.

This can be done in many ways... click here for one way

Here is another way to do it...

There are more if you want to google it...

heatman101

Coleman... | 135 views | 0 helpful votes


sounds like the carburetor got gummed up with gas being left in it over the winter/not being used in a few months. You may have to take it apart and clean it up with carburetor cleaner, possible the needle and float may have to be replaced, good luck Tim

Coleman... | 452 views | 0 helpful votes


Your problem is with the electrical section of your product. Is it possible that your circuit breaker is flipping and cutting off the power? Have you tried plugging in to both of your outlets? Do both exhibit the same problem? All or nothing on all power outputs?
If it's not circuit breaker related, it means your Alternator or power inverter is at fault and that's shop time!
Nimsgame

Coleman... | 304 views | 0 helpful votes


it should say on the side of the plug very carefully hold the coil wire about a 1/4 inch away from the head or other metal object and crank it and see if it is firing be careful and dont get shocked and make sure to stay away from gas tank and gas fumes and if it sparks chances are it is the plug

and check the oil level because it has a low oil shutdown switch and if it is out of oil or low it wont start

Coleman... | 174 views | 0 helpful votes


Bad gas? gets gummy

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FIND THE FUEL SHUT OFF VALVE.IF IT WAS CLOSED WHEN YOU HAD IT RUNNING,THE FIX IS AS SIMPLE AS DRAIN OLD FUEL,REPLACE WITH FRESH GASOLINE,OPEN THE VALVE TRY TO CRANK IT AGAIN.
IF IT WAS OPEN WHEN IT WAS RUNNING,SOUR GASOLINE AND VARNISH HAS LIKLEY GOT TO THE CARBORATOR.
REMOVE THE AIR FILTER,LOCATE THE BOLT IN THE CENTER,ON THE BOTTOM OF THE CARBORATOR BOWL AND REMOVE IT. CAREFULLY EASE THE BOWL STRAIT DOWN,AS NOT TO BEND THE TAB THAT CONTROLS THE FLOAT LEVEL,OR LOSE THE FUEL INLET JET. EXAMIN THE BOWL FOR CORROSION OR GUNK.
THIS IS AN INDICATION THE CARBORATOR MAY BE PLUGED WITH GUNK,WHICH COMES FROM GASOLINE SOURING AND TURNING TO VARNISH AS IT EVAPORATES OVER TIME.
ON THE CARBORATOR,WHERE THE BOWL WAS TAKEN OFF,IN THE CENTER ON THE BOTTOM NOTICE THE FUEL PICK UP TUBE,TAKE A PIPE CLEANER AND CLEAN IT BY PUSHING STRAIT UP AND DOWN A FEW TIMES,THEN FLUSH IT WITH CARB CLEANER.
REPEAT THIS UNTIL IT IS CLEAR.
LOOK CLOSELY AT THE SIDE OF THE PICK UP TUBE FOR A VERY SMALL HOLE,WITH A SMALL WIRE,CLEAR THE HOLE AND FLUSH WITH CARB CLEANER.
CAREFULLY REPLACE THE BOWL AS NOT TO BEND THE TAB ON THE FLOAT,MAKE SURE THE NEEDLE JET IS IN THE NEEDLE SEAT AS YOU PUSH THE BOWL INTO PLACE.
PUT THE BOWL BOLT BACK IN,CAREFUL NOT TO OVER TIGHTEN IT.
WITH FRESH GASOLINE IN THE TANK,AND THE FUEL VALVE OPEN,YOU ARE READY TO TRY CRANKING IT.
IT MAY TAKE A FEW TRYS.
IF YOU FEEL CLEANING THE FUEL SYSTEM IS TOO MUCH FOR YOU,PLEASE DO NOT ATTEMPT THIS.TAKE THE MACHINE TO A SMALL ENGINE MECHANIC.
YOU MAY CAUSE COSTLY DAMAGE TO DELICATE PARTS OR UNINTENTIONALLY CHANGE THE FLOAT LEVEL CAUSING FLOODING OR STARVING OF FUEL TO THE ENGINE.
BEST OF LUCK...

Coleman... | 603 views | 3 helpful votes


remove rear cover on the generator and loosen the center bolt a few turns then carefully give the bolt a hard center rap with a large hammer ...you should feel the taper release from the engine crankshaft and then the rest should be easy to see how it comes apart...I looked online and couldn't find a good illustraded parts list for your model so this is the best info I can give.

Coleman... | 156 views | 0 helpful votes


follow fuel line from fuel tank to the carb if you dont find it it probably does not have one

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These alternators need a slightly magetized armature in order to start. If you accidentally put AC into where it is supposed to come out, you would erase the magnetic field in the armature. You have to get to the excitor winding where you will find a bridged rectifier and apply voltage in that polarity to bring back the residual magnetism. Or if you feel lucky, you can just apply 12v from a battery into the outlet for a second with the engine off. It will magetize the armature, but might be backwards. Shut off engine and try your luck again. Maybe reverse polarity of the battery, and start engine again and check it. Keep trying, till it comes on when you start it. If this never works, you could have a problem with worn brushes.

Coleman... | 356 views | 0 helpful votes


what oil and gas does this generator works with

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Hello. The two black wires go to the brass screws and the two whites go to the dull screws. The green goes to the ground screw
J.

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