Evening all,i have a 110 johnson, J110TLCEM, have not had the boat all that long but has been running fine up until today, unfortunatley we had to return to the boat ramp at dead low tide which saw us runn through some mud to the extent that it covered up the water intake for a short time, (less than a minute at 5 knotts),this caused the overheat alarm to come on,after waiting for the tide to rise enough to get the boat on the trailer we half loaded it and started the motor before we lifted it out of the water, started fine,a black muddy stream ran out the tell tale for an instant and them ran clear....no overheat alarm at all....fine i though, not the best practice but all was good .. i thought...once home put the muffs on and planned on giving it a good flushing out given the crap it had been in.....after about maybe 2 minutes on comes the overheat alarm and the water is getting hotter than normal...shutt down engine.....all this time the tell tale was pumping as strong as ever....could it be possibly something bloke or got crap in it?, maybe thermostat???...any help would be greatly appreciated ..Cheers Brian...