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The firing order is 1-4-2-3 and the cylinder number are as follows: 3 4 1 2 Front of engine.

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Surging usually means the governor is not controlling the speed properly or there is a fuel problem. Have you cleaned the carb thoroughly and using fresh gasoline? Ethanol gasoline tends to break down quickly. Are all of the linkages to the governor and carb free from sticking? This could...

Could still be a governor problem. Does the engine "droop" excessively when the load is applied? That can cause the breaker to trip. You might want to try using resistive loads to test the capacity, like would be in a load bank. That way you could tell if the set is developing it's full capacity.

Description of the generator capacity copied from the TM is below. I wouldn't trust the gauge on the set. Check it with an Amprobe to be sure. If it doesn't produce capacity, usually the issues are with a poorly running engine or governor problem. The Model MEP-018A generator is 60 hertz...

When the engine is turning slow, as in cranking to start, spark has to occur later in the stroke than when it is running. This is done with the impulse coupling on the magneto. The coupling has a set of dogs that protrude from the housing and contact a stop pin when the engine is cranking to...

The spring on the mag has to be wound before engaging the cam gear because the marks have to be lined up when the spring is under tension. If it is not done that way, the spark when cranking slow will be too late for the engine to start easily. The spring allows the magneto to "snap" when it...

The timing mark on the lower (crankshaft) pulley will show you TDC. Pull the #1 valve cover off to be sure you are not on TDC on the exhaust stroke. At that point, a timing mark on the cam gear shows you where the magneto needs to be placed. You have to wind up the impulse coupling on the...

Did you check to be sure the governor is getting oil from the line? It seems that a failure like that may be caused by poor lubrication to the governor.

It's on a tapered shaft with a key. I don't remember having to use a puller, but if i did, it was only a small steering wheel type. I think I just jarred it loose with a rubber hammer. As far as getting the nut off, an impact won't have a problem. Tightening it, according to the TM requires...

Pretty simple to do. Remove the mag and the governor, as they are attached to the cover. Remove damper in front of engine. Alternator stator will stay on the cover if I remember correctly. About 10 bolts hold the cover on, be careful as they are different lengths. Then the cover comes right off...

The oil pressure switch on the left is the low oil shutdown for the generator. When cranking with the starter, a relay in the panel prevents spark until it sees pressure. It does this by grounding the mag thru the shut off wire on the mag. If starting the generator with the pull start, the...

When I needed points for mine, I found that Saturn had the best pricing. Other suppliers had the parts, but they were about twice the price. Also, with a no spark situation, be sure that the condenser is not shorted to the body of the mag, as this will also give you a no sprk condition.

The white wire to the mag grounds out the mag to shut the engine off from the stop switch. Wires I & J in the plug appear to feed the DC exciter in the generator, according the the drawing. Wire D appears to be the exciter wire to the DC (battery) regulator which would control DC output to...