never fails (almost never)

[thewater47]

Just bought a small older 1995 Spectrum fishing boat with what appears to be a very low hour 95 Force by Mercury 70hp outboard. When I picked it up, I had the guy fire it up with earmuffs. Fired up fast and sounded real good, water pumping well out the hole ect. Now, I get it home to a near by launch a couple days later. I forgot to charge the main bat, but it was enough to make it spit and sputter, then while cranking the bat died. Brought it home, popped the charger on it. It spit and sputtered once again for about 3 seconds, then just cranked. What I assume happened was the bat did not have enough snot to start it initially, it flooded and fouled the plugs? When i got home I noticed a gassy smelling oily mixture dripping out near the prop which I assume ran out the carb and down thru, which makes me assume it flooded. He says it's been serviced every year by dealer and has had no problems. I stood there while it ran great at pickup. Try new plugs first? They are L76Vs. Thanks for any ideas.

 

[jerryjerry05]

Re: never fails (almost never)

New plugs and HOT!!!! battery.Make sure you are starting correctly:using choke and idle advance,squeeze ball tight. Jerry

 

[thewater47]

Re: never fails (almost never)

Thanks, just got back from the river. It runs great, but starting procedure seems wierd to me. It almost flooded again. In neutral using push key choke,
it will only putter then die. I have to use the release button on the bottom of the shift lever to give it just a bit of throttle, then it starts. Once running it runs great. I am coming off a 93 Evin 150 Ocean Pro that behaved totally different at startup. Wonder if throttle has too much slack? Thanks, Tony

 

[roscoe]

Re: never fails (almost never)

I had the same motor for 8 seasons, on a Spectrum Avenger SC.

With a cold engine, you will need to advance the throttle to about 3/4.
Activate the choke for just a couple seconds until it pops once or twice. Then release the choke.

It can be flooded rather easily, but is easy to clear out and shouldn't need new plugs.

A better plug, equivalent and recommended, is the NGK BUHW. It is a surface gap plug, rarely fouls, and can be cleaned good as new just by wiping it off.

Gassy oil dripping is mostly excess unburnt fuel that has built up in the exhaust and midsection of the motor.

A good thorough decarbing (see the FAQ forum) will clean it out.

The engine will also benefit from a good decarbing.

Using a full synthetic 2 stroke oil will also help.

Welcome to iboats. Happy boating.

 

[thewater47]

Re: never fails (almost never)

Thanks so much. That certainly sets me straight and will save me time and money. Thanks again.