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Aggressive Mediocrity
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I have an older Generac generator that I've been using for three years. It's been pretty damn reliable, but the last trip to the track I had an unusual problem pop up. Normally it takes 2-3 tugs to fire up, but now it takes dozens before it tries to catch. Another 3-4 tugs will get it sputtering to life slowly, then it starts to run normal for about 30s before it dies. Once that happens, the whole process starts over with dozens of tugs before it finally comes back to life and will remain running throughout the day.

Today I changed the oil (it had been a LONG while), spark plug and checked valve lash. Starting is still a problem though. The motor also seems to idle a bit rough - as though fuel delivery might be an issue. There is also a switch to activate idle control, which works sometimes as it should, but other times causes the motor to stall. I took the carb off and installed a new intake gasket, but the rest of the carb didn't look too bad.

Anyone have any thoughts? I'm not much of a tuner and I don't really know what to do to trouble shoot if it's the carb (or something else). Hoping someone has been down this very path and can throw out some ideas on things to check.
 

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Very likely the idle circut in the carb is clogged. Hard starting coupled with a rough idle points to this. When starting the engine gets most of it's fuel through the idle circut.

If it's possible,take the aircleaner or hose going to the carb off and look inside.There should be a small air bleed hole at the bottom,blow some gumout or something like that thru the hole.Also see if there is a fuel screw you can unscrew on the side of the carb.Take it out and blow carb cleaner thru there too.

Usually it's a piece of dirt or something in the air bleed hole.....
 

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I had an unusual problem pop up. Normally it takes 2-3 tugs to fire up, but now it takes dozens before it tries to catch. Another 3-4 tugs will get it sputtering to life slowly, then it starts to run normal for about 30s before it dies. Once that happens, the whole process starts over with dozens of tugs before it finally comes back to life and will remain running throughout the day.
viagra:smt102:finga:

check the rubber fuel line and make sure its not coming apart internally .... also pull the carb off and clean it out ... prob just has some gunk in there you need to clean out
 

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Aggressive Mediocrity
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Discussion Starter #4
Thanks Mark, Allen. I'll tear into the carb tomorrow and get it all cleaned out. I've got plenty of carb and brake cleaner lying around - will these suffice or is gumout a better choice?
 

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I would start by pulling the float bowl and cleaning the green garbage out of it.. :p

Assuming your oil level is correct and fuel shut off is open .. LOL


BTW get some sta-bil for next year ya cheap ass.. :p
 

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Aggressive Mediocrity
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Discussion Starter #6
I would start by pulling the float bowl and cleaning the green garbage out of it.. :p

Assuming your oil level is correct and fuel shut off is open .. LOL


BTW get some sta-bil for next year ya cheap ass.. :p
You have no idea how much I abused the damn thing. Race car gets fresh fluids for every race. The tow vehicle and daily driver get oil every 2500 miles.

Now the generator? Well, every race weekend it probably runs for at least 30 hours. Eight events per year makes for 240 hours of running time. NOW....considering I probably haven't touched anything on it for three seasons......you get the picture :rolleyes:

As for my ass being cheap - you better bring the big bills if you want me to bend over :butthead: :p
 

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You have no idea how much I abused the damn thing. Race car gets fresh fluids for every race. The tow vehicle and daily driver get oil every 2500 miles.

Now the generator? Well, every race weekend it probably runs for at least 30 hours. Eight events per year makes for 240 hours of running time. NOW....considering I probably haven't touched anything on it for three seasons......you get the picture :rolleyes:

As for my ass being cheap - you better bring the big bills if you want me to bend over :butthead: :p

LOL just ribbin ya, David!!

My lawnmower needs a cleaning every year. I just drop the bowl, clean it up and put everything back on and it runs all year... till the following year. :p

Big bills? What if I forget my wallet? :p:p
 

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Thanks Mark, Allen. I'll tear into the carb tomorrow and get it all cleaned out. I've got plenty of carb and brake cleaner lying around - will these suffice or is gumout a better choice?
i just use good ole brake clean , monty i hear he has a special cc slot ... this is just hearsay though
 

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X2 on the fuel stabilizer,

I use stabilzer and tight fuel caps on all my containers to keep the gas fresh, and I have not had a problem in years, not even on the small echo shit like trimmers with the emmision carbs where the passages are as small as a sewing needle.

Oh and Gumout is the best but carb cleaner particularly Berkebile 2+2 gumcutter works great!
 
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