Re: Risers on an HP 500
 

I've seen mushrooms before on rotting stringers. Mildew is common when the boat is stored but not mushrooms. Just saying check carefully.

Re: Risers on an HP 500
 

Thanks everyone. Great info. How do I check for transom rot, and how do you go about fixing it? It maybe just right there and need new seal around exhaust, etc., but how extensive and expensive could it get. Thanks.

Re: Risers on an HP 500
 

My Gil/merc exhaust was doing the same thing. A year later they had internal cracks in the manifolds.

Re: Risers on an HP 500
 

how about hiring a surveyer, someone to look at the boat for you? or a nearby board member. sounds like some potential issues that should be looked into before purchase!!

good luck :D