Honda 90 Water Leak Beneath Cowl

[Bamasport]

Hello to all,
Hope you can help. My 2008, Honda 90 has a slight leak (drip) on the starboard side, behind electric panel.
Can't see the source. What might this be? Motor only has 200 hrs. I've owned it for 1 month & don't have any
history on it. Discovered the leak while flushing the motor.
Thanks in advance,
Steve B.

 

[hondadude]

It is possible that the thermostat cover for the block is leaking. The thermostat gasket is #11 http://www.boats.net/parts/search/H... Later/BF90DK0 LRTA/CYLINDER BLOCK/parts.html

It is located behind the electronic parts case #1 http://www.boats.net/parts/search/H...BF90DK0 LRTA/ELECTRONIC PARTS CASE/parts.html

Mike

 

[Bamasport]

It is possible that the thermostat cover for the block is leaking. The thermostat gasket is #11 http://www.boats.net/parts/search/H... Later/BF90DK0 LRTA/CYLINDER BLOCK/parts.html

It is located behind the electronic parts case #1 http://www.boats.net/parts/search/H...BF90DK0 LRTA/ELECTRONIC PARTS CASE/parts.html

Mike

Thanks Mike, I will start there. Great diagrams, too.

Steve B.

 

[Bamasport]

Ok, I got the electrical stuff out of the way enough to remove the thermostat cover & thermostat. It was definitely leaking but I'm not sure why.
Possibly the O-ring was bad. Thermostat appears to be original & looks like the engine wasn't flushed properly. New thermostat, o-ring & cover on the way. I'll let you know if this stops the leak.
Thanks,
Steve B.

 

[hondadude]

Good deal! You would think that they would put the thermostat in an easier to reach location.

Mike