When we bought our first motohome, the prior owner suggested that I start the generator from outside the coach. It proved to be wise advice. Not only does it remind me to check the oil level, summer/winter lever position and altitude setting, but it also allows me to observe the starting behavior, including the way the linkages move (or don't).
As "okcnewbie" said, I also found the generator much more willing to start without hesitation once I got in the habit of running it monthly for an hour.
Depending on where I am, I'll stop the generator from inside or outside.
Just passing the advice I got along.
2008 Holiday Rambler Admiral 30PDD (Ford F53 chassis)
2009 Honda Fit Sport