Small Engine Forum Recommendations

[Willyclay]

Need some recommendations for small engine forums. I am trying to save a 2004 Tecumseh HM-100 that powers a generator. It starts on the the first pull every time but after warm-up, it pops and surges badly. Thanks, WC

 

[Scott Danforth]

Need some recommendations for small engine forums. I am trying to save a 2004 Tecumseh HM-100 that powers a generator. It starts on the the first pull every time but after warm-up, it pops and surges badly. Thanks, WC

did you start by cleaning the carb? sounds like the idle circuit is plugged

 

[Lou C]

If it runs better when you pull the choke out partway, then the engine is running too lean, might need a carb cleaning.
some of the best you tube channels for small engines
donyboy73
steve's small engines
check them out, both very good.
small engine carbs are pretty easy to rebuild.

 

[64osby]

did you start by cleaning the carb? sounds like the idle circuit is plugged

+1 on this. Many times it is cheap and easy to just buy a new carb and replace it. Not sure what carb you have but I have bought replacement carbs from $15 to $35, popped them in and Bob's your Uncle.

Time is money sometimes, an hour or two cleaning a carb versus popping on a new carb.

 

[matt167]

mytractorforum has a pretty good small engine section. However that probably needs a carb rebuild. For the cost of a rebuild you can get a decent aftermarket. Check Amazon for HM 100 carb

 

[Willyclay]

Thanks for all the prompt & helpful responses! I originally thought it was a "dirty" carb and replaced it plus a new filter. Have since replaced the fuel line due to age deterioration concerns although none seen. Cleaned the tank also. Identical problem after warm-up. Did identify source of long-term oil leak as the crankcase ventilation hose connected directly to carb. Found oil draining out the air filter housing. I capped the carb hose-barb and have it venting overboard, which after two sessions of running 10-15 minutes each, no oil being ejected. I now suspect all these years of oil splatter around the front motor housing may have dirtied the flywheel, coil, ground, etc. in the ignition circuit and plan to inspect/clean soon. FYI, only use E-free fuel with Stabil. Will report back!