Hello John Talley here with Boats.net, and today we're going to be completely
disassembling our 2004 Yamaha F225. Now if you've been watching the other videos
in this series, you know that we did a compression test that looked bad and
then we did a leak down test that looked even worse. So what we're going to do
today is tear it completely apart, go all the way down to the crankshaft, and see
if there's anything that we can reuse when we go to build it back up. So let's
head over to the bench, look at the tools we're going to need, and then we'll get
started. Alright guys, is a pretty short
special tool list for this particular project. All you're going to need, other
than the regular tools in a well-stocked toolbox is a flywheel
puller. Now Yamaha makes one, but it is kind of on the pricey side. So my advice?
Head to your local store, pick up one that has this configuration, one, two, and
three. Just make sure that these points aren't too far out, otherwise you're not
going to be able to reach into those threads. Now as far as the parts go, we're
not calling out any on this video because well, this is just exploring.
We're just going to break it down and see what's what. So with that being said,
let me go open up my toolbox and then we can get started. Let's roll.
Step number one, they say a picture's worth a thousand words, I agree with that.
So before we get started, if I were you, I would take a picture from each angle
going all the way around the motor and that's going to be your diagram so to
speak to get all these connections put back together. Because where we're going
to start is we're going to go ahead and bring it around the top dead center, yeah
I realize it's not that important bring around the top dead center if we're
gonna break it all the way down, it's just the way I like to do things.
Alright, there's our marks. Top dead center here, and our marks here and here are
pointing at the heads, so that's gonna be TDC. Now let's start getting that harness
off. Now as you're pulling nuts and bolts off, I suggest you get a supply of Ziploc
bags. That way, as you pull each section, go ahead and tag the bag, throw them in
there. It's a guarantee unless you've got a photographic memory, you're not going
to remember where each one came from If you've got a big pile of nuts and bolts
left at the end of the disassembly process. So go ahead and organize now,
it's gonna save you a lot of time later. I don't mind using impacts to take
things apart, I do not recommend putting it back together. Because eventually, if
you use a impact when you're assembling, you're going to end up stripping
something. Taking it apart? No problem.
There's no real magic to any of this, guys. We're just gonna go around the
harness and just get everything laid off and disconnected. Alright, with our
zip ties cut loose, you can actually bring up your fuel lines and you push in
on this black section in the middle and then they just disconnect. Makes life a
lot easier. So we'll just leave those hoses attached to the throttle bodies
when we take those off. Like I said, we're just going to work our way around and
take off the harness as much as we can in one piece. Not a lot of room to work
back here, but be patient and be careful. You don't want to break these and then
never get seated back in there right.
We're getting really close to the harness being completely disconnected. As
you're doing this, it's gonna be really important to continue to take pictures
because some of these connections, they aren't visible until you get other
pieces out of the way. So you get something out of the way, you take a
picture. Then keep going 'cause I guarantee you when you go back you're just going
to be almost impossible to remember where every single thing went from
memory. There you are.
There she comes. There you go. Next, let's go ahead and attack the fuel system. Go
ahead and get the VST tank out of the way. We should be close to being able to
take it off as one unit at this point. There's just a couple lines we have to
disconnect: there's a water line over here for the fuel cooler that we need to
pull. It's like somebody already removed one of our bolts for us or you forgot to put
it back on a long time ago. Now are you ready? Yep, looks like it now. We're going
to focus on getting the starter, the voltage regulator rectifier, and then
we're going to work our way over to the throttle bodies. Get those out of the way.
So now let's go ahead and concentrate on getting the throttle bodies off. First
thing we want to do is get the linkage out of the way. Actually crosses over to
a pivot point about halfway through the engine, connecting one side to the other.
Whenever I pull off a bolt where I can actually-- or a nut-- and put it back after
I release whatever is being held by it? Makes it a lot of easier when it
comes time to put it back together.
Let's see if she'll pull off now. There we go.
Now with all that down, let's go ahead and get that flywheel pulled off. Needs a
little impact to get the nut off, and then we'll put on the puller and get it
pulled off. Next let's go ahead and get the flywheel off. We're using just a
standard puller, just make sure it has areas that go really close in to get
your bolts through. It's going to be important that all the bolts be the same
distance down so it pulls up on them evenly.
Wow, this is new and exciting. There we go. Just a little shock to the system,that's
all. Now to get each one of these out, I recommend that you use an impact with a
Philips tip on the end of it because if you don't, chances are you're going to
round these off. Like one of my favorite tools there. Makes life a lot easier.
Let's go and get this pipe out of the way so we can get the get the wiring out.
Alright guys, that's gonna wrap this video up. Listen, if you want to keep up
with what I'm doing next, why don't you go and hit that subscribe button because I'm
really going to start tearing into this engine to see what all it's going to
take to really rebuild it. Listen, we just want to say thanks for shopping here
with us at Boats.net and we will see you to the next video. Have a great day.