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Engine Tune Up
Posted: Thu Oct 23, 2014 9:15 am
by STEVEBRENDA
We have had our boat now for 11 years. Periodically, I have changed spark plugs and the fuel filter and the boat seems to run fine.
When the boat was new, we were moving 30+ maybe 2 more mph. Now it seems we are doing good to get 27 mph. I realize we have a lot of furniture on our boat and have accumulated a lot of stuff in the storage lockers.
My question is do you think it worth while to pull the boat out and take it to the stealership to get a tune up. Would hey put it on a machine, or would they just change spark plugs and the filter like I do?
Re: Engine Tune Up
Posted: Thu Oct 23, 2014 11:08 am
by curtiscapk
Steve,
I would just keep doing what you are. older 2 strokes really don't have much more to them than that. Have you cleaned out the carbs? You might try running some seafoam through it to clean out the gunk. That stuff works miracles! May gain some of your missing speed?
IMO of course
Re: Engine Tune Up
Posted: Thu Oct 23, 2014 11:15 am
by Bryden24shp
Are the pontoons pretty clean, yet? I agree with Craig, Seafoam works good to clean out the fuel system. Could always give it a compression test, too. Just to make sure the cylinders are healthy. Maybe check the prop if the RPM's are the same as they always were. It may have pulled in from use. Not much to tuning them up, you're right!
Re: Engine Tune Up
Posted: Thu Oct 23, 2014 1:44 pm
by margaritaman
Steve,
In the past 11 years I have slowed down too. I guess that's the cycle of life even on pontoons. A younger motor would probably invigorate that tired pontoon just like younger chicks make me feel younger.

Re: Engine Tune Up
Posted: Fri Oct 24, 2014 5:23 am
by RcgTexas
prop wear could explain the speed loss, and dirty tubes.
Re: Engine Tune Up
Posted: Fri Oct 24, 2014 12:42 pm
by STEVEBRENDA
"prop wear could explain the speed loss, and dirty tubes"
I have bought several new props over the years due to the bottom of the lake shifting as I approach it. The new props have not made much difference. Our boat sits on a lift, the bottoms are immaculate.
Seafoam or better has been religiously run thru motor. I always run synthetic or synthetic blend.
It seems to be the consensus that a shop mechanic will not do miracles for me.
Thanks for your replies.
Re: Engine Tune Up
Posted: Fri Oct 24, 2014 1:22 pm
by Bamby
Ethanol fuel now vrs real gas in the past? I'm aware that if I'm running her hard I can feel the difference at the helm with my Yamaha. Ethanol Fuel Sucks....
Re: Engine Tune Up
Posted: Fri Oct 24, 2014 1:39 pm
by curtiscapk
STEVEBRENDA wrote:I have bought several new props over the years due to the bottom of the lake shifting as I approach it.
This is hilarious!!!!!!!
Re: Engine Tune Up
Posted: Fri Oct 24, 2014 1:49 pm
by RcgTexas
curtiscapk wrote:STEVEBRENDA wrote:I have bought several new props over the years due to the bottom of the lake shifting as I approach it.
This is hilarious!!!!!!!
