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#11528973 - 04/08/16 05:12 AM Motor just went south
marschall Offline
Pro Angler

Registered: 03/12/09
Posts: 887
Loc: Venus Texas
Took the pontoon in yesterday to have the carbs cleaned , and they called and it was 2 burnet pistons !
Been a good motor - 2000 Yamaha 50 - for 8 years , and have not had to do a thing to it. The bad part is that they said because of this time of the year they are looking at a 6 week turn a round. Oh well , I am putting it back in the slip , and will wait till the 1st of September to have it rebuilt. $2100.00 to boot. At least I have my Cajun bass boat as a stand by
May your wiener schnitzel always stay above your lederhosein.

#11529187 - 04/08/16 08:52 AM Re: Motor just went south [Re: marschall]
Bob Landry Offline
Extreme Angler

Registered: 08/10/11
Posts: 2762
Loc: Austin, Tx
The usual cause of burned pistons is a lean gas/air mixture. I'm betting that motor started exhibiting a lean sneeze a long time back and wasn't addresses at the time.
2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

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#11530931 - 04/09/16 08:07 AM Re: Motor just went south [Re: marschall]
Muzzlebrake Offline
Extreme Angler

Registered: 12/26/14
Posts: 1664
Loc: Euless
A too lean mixture probably means it wasn't getting sufficient oil thru the motor as well. Assuming it is a 2 stroke. Not enough oil can damage a lot of things. You will be lucky if it is only the rings/pistons.
From Genesis: "And God promised men that good and obedient wives would be found in all corners of the earth."

Then He made the earth round...and He laughed and laughed and laughed!

#11531384 - 04/09/16 03:55 PM Re: Motor just went south [Re: marschall]
T Bird Offline
TFF Celebrity

Registered: 03/07/10
Posts: 6068
Loc: Temple, Texas "Rail Town USA"
Make sure they troubleshoot/isolate the cause of the burnt pistons.


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