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Yamaha F225 Outboard Rebuild Part 2: Powerhead Teardown | Yamaha Outboard Head Removal | Boats.net
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- Опубліковано 18 лип 2019
- See how to remove the cylinder heads head on your Yamaha F225 in this video from Boats.net.
This engine is in need of serious work, and in this video, John will show you how to teardown the powerhead on your F225. If you’re replacing the head gasket on your F225 or doing a complete powerhead rebuild on your Yamaha outboard, this will help you get things broken down.
We’ll start by removing the belt, and then we’ll remove the exhaust plates on our F225. Then we’ll work on removing the cylinder heads on our outboard. That’ll involve removing the valve covers, the camshafts, and then removing the heads. Then we’ll remove the tappets and valves, where we’ll get a closer look at what’s going on in this engine.
See how to remove the powerhead on your F225 here: • Yamaha 225 Powerhead R...
Then see how to remove the fuel system and flywheel on your Yamaha outboard: • Yamaha F225 Outboard R...
Move on to the next step and we'll disassemble the bottom end here: • Yamaha F225 Outboard R...
See the valve and camshaft diagram for your F225:
www.boats.net/...
See the exhaust plate diagram:
www.boats.net/...
F225 cylinder head diagram:
www.boats.net/...
See the Yamaha 225 compression test: • How to Compression Tes...
See the Yamaha outboard leakdown test: • Yamaha Outboard Leak D...
VIDEO HIGHLIGHTS:
Belt removal - 0:35
Exhaust plate removal - 2:08
Valve cover removal - 3:35
Removing camshafts - 4:30
Removing head - 5:20
Removing tappets and valves - 9:30
Find Yamaha outboard parts here: www.boats.net/...
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In the video we’re working with a Yamaha F225 outboard motor, but you may have similar steps for your Yamaha outboard. If you’re not sure whether these steps apply to your motor, leave a comment and we’ll get back to you.
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Nice to see major rebuild videos.
I understand for some years and models it does not make financial sense to do major rebuilds, even for demonstration purposes. Not just because of cost, but mainly because of certain key parts are longer available.
Might I suggest the following because there are tons of them out there, including mine:
1980's to 1998 OMC V4 90 degree crossflow (90 hp to 115 hp). Major rebuild, ignition diagnosing, fuel delivery diagnosing, VRO oiling testing/diagnosing, and possibly cover gearcase re-assembly (bearings/seals)
Keep the videos coming, I'm sure there will be more things in the near future I will be buying from Boats.net and Partzilla.
I think a great suggestion would be how do you keep all the parts organized as you strip down the motor, there are so many numerous parts that would need to be put in some kind of succession when you rebuild the motor after taking it competely apart.
Amazing videos.
Gotta get me one of those shirt for bass fishing.
do you have videos replaceing head gasket 2004 honda 159 outboard thank you
Tengo un motor 225 no orina y tiene todas las partes de enfriamiento nuevas le envío videos ????? Gracias
Motionless in white
He was absolutely correct about the sharp edges cutting you open. Sliced my wrist on a cam lobe! Be careful!
Can you guys do a video for diagnosing the issue with the exhaust dry corrosion?
After a rebuild like this how many more hours you think this motor can run? Thanks
these engines are non-interference engines, so you can do whatever you want with the camshafts without risking damage. it says so in the very first pages of the workshop manual. -yamaha-tech
Hey John , I have 2005 F225 , the bottom port cylinder has a spark plug with nothing left on the end all gone .
I launched my boat warmed up the engine for 15 minutes, , switched it off just to be sure of a restart, and nothing would turn over .
Took the boat home , I needed the breaker bar on the spark plug , the engine still won’t turn over with all the plugs removed .
Do you think my engine has any chance of a piston replacement. Thank you Eric
Hi, John do you have one on re install of over head cam and removal of oil pump?
What size torc socket for head bolts
does anyone know where can I find that same wrench for torque?
i have water mixing with oil 225hp yamaha.. dont know the cause
Haha, Feel your feelings of a snapped bolt.....
Buick. Eng.