Fired it up and gauges quit working, and water under helm after going out. M/C dealer said Electronic Module unit was not properly winterized and water coming in through pitots for mph. Said it would be $300-400 plus $125 labor. Does this sound about right? Also, how best to temporarily plug those up while we run a bit before fixing? I'm having tons of people to lake this weekend. Please advise! And how do you blow those out? I've never done this before and never had a problem in 11 years!