Most cheap Chinese made generator/alternator produce crappy 60Hz sinusoidal wave at 3600 rpm (Oscilloscope test reading..), you better get a Japanese or old American made unit.
Using the old K series Kohler of a QL is another questionable choice, efficiencies is not their "Forté", most modern OHV engine do a lot better but since you need to use what's available as cheap has possible, you can probably power your alt/gen with the 16hp running at 1800rpm using a 1 for 2 ratio, this way you save a bit on gas and you cut the noise a bit too.
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Gilles.
1988 2072 401 54" hyd angled blade
1988 1872 364 snowblower/C50 deck
1976 1650/QA42A blower/44A deck/standby
1976 1450TS/Sleeve hitch/44A deck/in storage
1963 100 (red)/in storage
2010 Kubota 2380-2/42" infinity deck (engine swap)
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