Video

I later thought it was that too since the motor would run up in rpm and not increase speed. I ended up buying a spare motor and pulling the lower unit of it and swapping it on the old engine seems to be working fine now. I just need to get out on the water and make more videos

I would have to check the manual but I think it’s for a sensor so I don’t believe you can plug it

I appreciate that thank you!

Glad you liked it!

My pleasure!

Look for the relays that are related to that system you should see one wire coming from each going into the control box harness, if not try to trace the wire up in to the motor then out starting from the trim pump.

I didn’t do a compression test beforehand but the engine sounded strong I don’t believe it had any compression issues

Thanks a lot!

Good luck!

I thought I replied but I used a clean microfiber towel or shop towels and then coated them with a little bit of tcw3 to prevent corrosion compressed air could work just spin the crank to make sure nothing got past the piston rings

Assortment of screwdrivers, picks, and a thin wire brush then flushed out with water. I would suggest a vacuum to suck all the crude from the cowling

You’re welcome!

Glad I could help!

Sounds like a possible warpage on the water jacket cover or a hairline crack in the water jackets. Did you check for the warpage on the water cylinder heads?

Check your exhaust manifold, it has walls in it to cycle water, they can corrode and begin letting water into the cylinder. Be careful with the bolts though.

Yeah the oil is for the 12mm head bolts. The 10mm jacket cover bolts take the high temp thread sealant. Good luck!

Thank you! Cheers!

Nope just the plain gasket

@@austin.rivera Thank you very much, great job, i will be doing this tomorrow. Super helpful video .

You’re welcome good luck and have fun !

I don’t remember the exact website but I got it from google I just searched for the maintenance manual on there.

@@austin.rivera did you end up putting the loctite on the head bolts as well?

@@Sportsmans_Paridise_Outfitters I used some penzoil tcw3 two stroke oil on the head bolts, manual states Yamaha 2 stroke tcw3 oil im assuming it’s so you don’t damage the threads when torquing the bolts down and for better torque reading loctite was just for the cylinder head cover bolts

Thank you!!

Thank you !👍 Cheers from Florida!

Thank you! I think it was a hidden gem for sure needs some work, but it’ll be a great little boat here soon. And for the wiring diagrams I just went of the old owners manual on Rangers website wasn’t too hard to find. This one still has the factory oil injection system but I need to figure out why it’s not sending oil from the main tank in the boat out to the tank on the side of the engine. I assume it’s the small filter that could possibly clogged.

Glad it could help out thank you!

320 grit then 400 grit I wouldn’t go lower than that.

@@austin.rivera ty for tge response and answer.

@@austin.riverabest way to clean the bore afterwards ? Compressed air then brake clean ? Just wanna make sure I get any grit out thx

@@skip3662 brake cleaner and some shop towels should then coat with some oil after. Compressed air could work but could also push the grit deeper in there. Rotate the the prop or driveshaft the the pistons can move and get a better clean

@@austin.rivera that makes sense, I’ll stuff some cloth in there prior to sanding as well. Thanks Austin, 🇦🇺 👍👍

Thank you!

Its an 1988 mercury 80hp 2-stroke

@@austin.rivera not certain on that one but I believe most Mercury’s used this design. As long as it shifts good and there is no noise in gear while running I’d say you don’t have any issues

Thank you, hopefully it’ll run like new!!

🤘🏽🤘🏽

Not yet

If it runs I say start with replacing the spark plugs, checking lower unit oil, and clean the carbs if it applies.

@@austin.rivera definitely needs to be broken down. I'm afraid to even try to pull. Any seals I'll need to replace?

Possibly yess I think it’s cheaper if you get a rebuild kit for the entire motor than to try and piece them out separately. That way you should have most seals and gaskets used when tearing the motor apart

@@austin.rivera awesome idea!!!

Thank you!!

That’s a perfect example!!