I have noticed that when I trim my motor up completly or even most of the way some gas seems to leak out of the motor onto the rear splash pan, I have not found any bad hoses so I am imagining it is something in the carbs, I did replace a missing gasket on one last year but this problem still continues. And as I mentioned I do not have any issues when the motor is trimmed down.
96 Merc 135hp
Parts Listing:
http://www.crowleymarine.com/mercury-outboard/1678.cfm
Service Manual:
http://1manual.com/Mercury manuals...52r3/cover.pdf
96 Merc 135hp
Parts Listing:
http://www.crowleymarine.com/mercury-outboard/1678.cfm
Service Manual:
http://1manual.com/Mercury manuals...52r3/cover.pdf