I run a 2004 Stratos 201. My engine is a 2004 rude 225 ho di. I had my motor winterized and on my 1st trip I noticed first my rpm didn't work and then when it did a few seconds later it read 1000-1500 off when it should have been reading 5500 with my setup. I checked for loose connections at the tach and looked for loose connections under the cover for the motor. Can anyone tell me what could cause this?