Yamaha 200 HP Outboard repair head corrosion leaking water into cylinder seized

[@crazycrea]

Hello I'm working on the same motor do you know what the torque specs are for the head and the head cover. I was told it's two sets of tightening for each but cannot find the exact torque specs. I would appreciate any help thank you

[@rok7980]

What did you use to remove the head bolts without breaking them? Need to do this but scared to break a bolt due to corrosion

[@TheFARM2019]

Nice bronco!

[@ricksmith5230]

Have same thing my motor guy said it was electrolysis welded my

[@bahadirdogan6208]

Hi I am thinking to clean my pistons from carbon on my outboard? My question is do I have to put nex gasket after I done or can I use the same one after clean it? Do you also recommend this I mean should i give a good clean up to pistons or leave it like that? Thanks

[@jacobwebb6406]

How did you clean up the cylinders. I have a 1990 yamaha pro v 150. Had a similar issue. Seized up. Took the head off and found rust in 2 cylinders. Got the fly wheel freed up but it makes a loud squeek and get kinda hard in one spot while turning the fly wheel with a socket.

[@Got2goGaming17]

Hi I’m having same issue same exact situation, how did you get the piston free, well the flywheel, what did u do to get it to move
Would truly appreciate it 9:07

[@albertoroque8125]

Hey,,I have the same problem,,when I finish my we put the new seal and still leaking,,my question is if there is any type of sealing or filling the I can put after I put the seal on the head gasket..?.?.?

[@darrylstiner4245]

Thanks for the video! I had the exact same issue on opposing cylinder heads #3 & #4 with low compression 85-90 and water injection LOL through the head dome like yours
Either its from corrosion or bad castings from yamaha ?

[@maximo-imp]

Hi. You need a workshop manual to build a 1980 hp 175 V Mercury engine (V6). Would you be so kind as to send it to me? From already thank you very much.

[@reddit_stories0630]

Do you have a contact information ? We have a boat that we are having a ton of issue with and everyone is saying one thing or another... we are in Anaheim California ...