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25hp Merc serviced but - I sang it's praises too soon
Had my 1994 25hp 2 stroke Merc in the shop last week. The mechanic (a guy I trust well), serviced the carb and adjusted the throttle linkage and throttle timing cam. I took it out last Sat. (6/29/13) and she ran like a top. Fired right up when I hit the key, idled with a smooth purr, accelerated great and jumped on a plane quickly. The wife and I toured around for about an hour with high speed and low idle no wake zones with perfect performance.
I had a few hours this afternoon and headed to the lake. After launching at the ramp and parking the truck, I climbed in and hit the key, it took a couple of times of turning it over (cranking a few seconds and pausing, while not just grinding the starter) before she cranked. I eased the throttle to motor out of the no wake zone and within 30-45 seconds she died and I could never get her to restart. I drifted a while thinking may be I had flooded the carb but still no joy.
I used the trolling motor to get back to ramp. I trailered the boat and in the lot I pulled the spark plugs, they were wet. I checked the fire and both spark plugs fired well. I turned the starter for several seconds with the spark plugs removed hoping to clear the perceived flooded condition. I then reinstalled spark plugs and backed the boat into the water and tried to crank her up but still no joy.
I won't be able to get back to the shop until next week due to work and the holiday.
Sorry for LONG post, but I wanted to give good details.
Any suggestions before I go back to the shop?
Robin Chaplin
1972 13 Sport - 1994 25hp Mercury
It was my Dad's, now it's Mine, one day I'll pass it down, 'til then it's Happy Whalering.
I had a similar experience and spent hours trying to clear the otherwise flooded motor. I really didn't think it was flooded that badly but despite all my efforts (trying all that you mentioned), I Took the rig home. Later I tried it again and of course it fired right up, in my situation it was apparently a perfect setup for flooding the motor quickly and then making it worse before I knew what was actually happening. My start up routine is pretty much always the same and I guess the motor (just for a cruel joke) decided I should have done it differently that day.
1963 13' Sport 50hp Evinrude
Maintaining a level of sanity that is socially acceptable
