poppet valve

any idea where they are located on a 95 yamaha 130hp and a 90 merc 90hp. probaly never been replaced. maybe the reason for no teltales?

thanks
andy

Re: poppet valve

anything? i need to find these so i can clean or replace!

thanks
andy

Re: poppet valve

Give me the model number and I'll find out.Your thermostat could be blocked with salt/sedimentation crust.

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