Suzuki generator

[Polarbear]

I feel an idiot posting this but I cannot get my daughters boyfriends Suzuki generator to run.

It hasn't been used in at least a year and I'm sure it's fuel related. I had it apart and cleaned loads of shit out of the fuel filter and carb bowl. Cleaned everything and put it back together. It's a really basic mikuni carb.

If I squirt chain cleaner in the air intake if fires up and runs a few seconds so it's not the electrical side.

WTF can I do? There is only one screw jet adjustment on the carb and I have set that at one turn open but tried different positions to no effect.

Compression seems ok from pulling the starter.

What am I missing or being totally dense about?
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Triumph Trophy Launch Edition

[virus]

torn diaphragm in the fuel tap/carb or an air leak somewhere?
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[Islander]

Did you clean and clear all of the jets and passages in the carb body?

[Polarbear]

[Robby]

My generator was doing the same thing. I had taken the carb apart and cleaned it, fitted a fuel filter, and it still wanted a blast of carb cleaner to start.

Solution was cleaning the carb again, which helped a bit, and fresh fuel, which helped the rest.

They run an incredibly simple carb, but also one which clogs up surprisingly easily if it isn't used frequently. The auto-throttle is very bad at compensating for a slightly blocked jet. The ignition system is fairly rudimentary, making a fairly weak spark on the initial pull start.

So add together old fuel, a weak spark, and a bad mix, and you get a generator that won't start.

[bikenut]

it runs for a moment so ign would seem ok, fuel, so re clean carb making sure all jets etc are actually clean clean.

You know cmsnl do exploded views for this stuff also, and genny may have an oil alert ?

What model/year genny etc and have a look see on cmsnl.....
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nuts about bikes

[Bikeless]

I had a similar problem with a genny, drove me mad, eventually traced it to a weak spark, bought a new coil and it ran like clockwork , when I checked for a spark it looked fine.
I even bought a new carb which I still have in a box somewhere, I bypassed the oil level switch while fault finding as well as fitting a new plug, the coil was the last thing I replaced as I'd ruled everything else out.

[-]

If fuel is filling the float bowl and it runs squirting carb cleaner into the intake, it'll be a blocked jet. You need to unscrew or undo them, take them out and make sure you can see daylight through the tiny hole.
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