Rather obscure group to be bringing up. I honestly had to do some research before I had any idea who you were talking about, these are historical footnotes of the highest order. From what I gathered, Lenin's group was somewhat popular in St. Petersburg, but they weren't really that popular elsewhere in Russia. So if they somehow seize power in the city, they won't be able to maintain a control over Russia. Even Kerenski didn't manage that. Once the elections were held, Russia's government fell into the hands of the peasant oriented Socialist Revolutionary Parties. Lenin's governing style is hard to fathom. From the very little I've been able to gleam, his ideology is a weird mix of socialism and a kind of modern absolutism. I'm not sure how that would work, exactly. Anyway, for the coup to work you're going to have to make the Bolshevik's even more united than they were. Lenin's seems to have made a lot of pronouncements that his party lacked any internal division, but the failure of the coup proves that wasn't the case. Two high ranking members of the party didn't support the idea of a coup, and actually published the party's plans in a local newspaper. It was that article that led to The PG's quick arrest of Lenin and Trotsky, and eventually countless others associated with the party in St. Petersburg. So basically prevent the dissent within the party, and they might stand a better chance. I can't see them lasting in power though.
OCC: I might be remembering things incorrectly here, but given the relative obscurity of Lenin here, if what I say sounds ignorant, I think there's some justification.