Exhaust corrosion

cptbill

Senior Chief Petty Officer
Joined
Oct 6, 2012
Messages
762
What year did Yamaha supposedly fix the exhaust corrosion issue ?
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
12,815
If you look over at the Hull Truth there are reports of this on F150s as new as 2014. I’m not sure they actually solved it. Probably varies by model.
 

cptbill

Senior Chief Petty Officer
Joined
Oct 6, 2012
Messages
762
Just wondering, need to replace one of my 4 stroke 250's and not sure witch way to go
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
12,815
Prob wondering if Yamaha ever fixed the corrosion issue. You’ll find many threads on this on the hull truth boating forum.
 

cptbill

Senior Chief Petty Officer
Joined
Oct 6, 2012
Messages
762
actually I've pulled this motor off and tore it down Not the corrosion issue as I thought the mid section and base of the block show no signs of corrosion at all yet all 6 cylinders show signs of water intrusion, haven't seen any thing obvious yet still looking
 
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