I have a Coleman 5500 with Tecumseh motor and it has a really, really slow oil leak when it when it is sitting in the shop not running. I can't tell where the oil is coming from. Any suggestions?

It may need a REALLY thorough cleaning & oiling, Cindy, including the motor bearings. The motor's windings may be getting weak, too, or the new belt may be slipping.

check the oil level. there is a low oil cut off.

You could do this but leak could also be around oil filler plug if not seated. The main engine bearing seal is more likely if the unit is old with large number of hours.

If you find a bad gasket, replace with the silicone make your own sealant AND DO NOT overtighten screws. That can worsen the problem with gaskets.

I have a Coleman Powermate 5000 with 10 HP Tecumseh engine. It is very hard to get started. once started runs great . But when you shut it off and try to restart it it will not start.
I have plenty of fire. I also replace the carb.
I still have problems getting it started. I tried to start it with out the filter also. What can i try next?

Thanks for any help

If it's back firing there's really only two probable reasons, the timing is off or you have a problem with the valve train. If it's been sitting a while I'd check for a stuck valve. As far as timing goes I'm not familiar enough with your engine to tell you what to do.

On many Tecumseh engines, there is a crankcase breather located under the flywheel. It has a cork gasket to seal the top plate of the breather. Either the rubber breather housing is cracked, or the cork gasket needs replaced.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

try to clean out the carb first with auto parts carb cleaner, then you may need to buy a totally new carb for the unit, as this company will NOT sell parts for these carbs due to the carb setting is sealed & has to stay at a set level for voltage output and setting

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.

At 167,000 miles there will be wear on the piston bores and rings this means you will be burning off oil even during normal running

Standing test is to make sure that the car is in park and get someone to really rev the engine for a few seconds let it die down and do it again repeat this 6 or so times and I bet you will see a thin blue smoke coming from the muffler

Where can i obtain a manual for the 5500 gas generator