my standard advice...
don't take a vehicle you love up the alcan.
canadian border guards are dick holes. if you've ever had a dui be prepared to cough/bribe/cough pay an extra fee.
invest in a good pair of sunglasses.
there all kinds of neat pills in canadian pharmacies you can get without a prescription.
consider joining a lodge. things like the elks, moose, vfw are still very big up here. they are often the only good place to eat in these little towns. and knowing the secret handshake could help if you break down.
there may be only five cops on patrol in a region the size of virginia. but there are only six roads. so the odds aren't good. girdwood is a notorious speed trap.
all the roads are two lanes. if you're blocking more than five vehicles the cops will ticket you.
if you're stopped in the middle of the road to make a left turn people will blow by on the right shoulder without slowing down.
we have the most awesome anything goes gun laws imaginable.
we voted to legalize marijuana. but the law is still in flux. no one knows what's going on.
an old timer told me the bull moose consider motorcycles mating rivals,and will attack. i now suspect he was bull****ting me. but you never know.
a really good way to irritate the local citizens is to leave trash around. all that stuff about garbage attracting bears is true.
thieves roam the better known campgrounds stealing generators and such.
you will take a rock through the windshield.
the stories of eagles carrying off chihauhuas are true.
there is a strong bit of pay for play in the milepost. but it is still indispensable.
tourists see a moose, stop their rv in the middle of the road to take pictures. and then are surprised when they are rear ended by a log truck. happens a dozen times a year.
there is a yearly updated book called the "milepost". it is a mile by mile listing of every gas station, motel, tourist trap, scenic vista. it is indispensable.
https://www.amazon.com/Milepost-2016-Kris-Valencia/dp/1892154358/ref=sr_1_1?s=books&ie=UTF8&qid=1466732189&sr=1-1&keywords=milepost+alaska+2016
consider taking the ferry up. the alcan will take at least seven days. and you'll be exhausted with an exhausted bike. the boat will drop you off in whittier relaxed and ready to go.
the motorcycle shop in anchorage is where all the GS people meet. on a average summer day you can find a couple guys headed to prudhoe bay so you don't have to go alone.