just received my new Bennington 22SSX with a Yamaha 115hp outboard. In the water today we started the motor for the first time and I noticed a ticking sound similar to a valve tap maybe. My old boat had a mercury and before that a Johnson so not being familiar with Yamaha I asked the mechanic at the marina about this sound. He said they all do it. Is this normal or should I be contacting Yamaha. Thanks in advance for any advice.