I'd also change the oil, gear oil, and check the air filter. You never know if the previous owner ran it through a deep puddle, a car wash, or a dust storm... I watched a neighbor use a powerwasher on a bike - concentrating on the crankcase breather tube because it had spit some oil onto the cases of his $20,000 Victory. Luckily I was able to talk him into checking the oil afterwards (since I couldn't stop him). The 3 oil changes it took to get all of the water out was a lot better than what it would have taken to rebuild the engine.