okay guys I'm about to start the CR 250 engine build and I figured I'd bring you
through the process of preparing everything for the build
since there's actually quite a bit to consider so let's jump right into it a
really cool thing I'm doing is the transmission is sending all the parts
out to trick engineering for a process they call super finishing basically what
they do is polish all the pieces out to reduce friction and that will increase
horsepower and torque numbers as well as make for a lot smoother shifting as soon
as I get these parts back I'll show you the tremendous difference in the finish
all right I've got the entire engine laid out here I'm gonna have to figure
out exactly what I'm gonna need for parts to put this engine back together
so first off I've got a red traffic kit on the way and that includes a crank
piston crank main bearings and seals transmission bearings and seals gaskets
and a water pump rebuild kit besides all that I'll need to pick up a new cylinder
clutch inner hub clutch plates and a few other odds and ends as well and that's
what I've got to figure out right now it really comes down to the small parts and
pieces that'll hold up the build if I'm missing just one bolt or a pin that'll
prolong the entire engine build so I want to make sure I've got all that
stuff taken care of beforehand as far as the cylinder goes this is why I'm
replacing it it's got somewhere near the exhaust
bridge and it just isn't usable at that point so instead of fixing it it's
easier for me to just go buy a new one and sell this one as a core and that is
the biggest reason why I got this bike for so cheap because of the wear on the
cylinder wall here someone was too torn down and realize
it's pretty expensive to replace the cylinder now for the clutch hub that was
broken when I got the bike so that'll need replacement and the clutch plates
are just old and worn and it's always a good idea to start with a fresh set and
the crank same idea while I've got this engine completely apart it only makes
sense to replace the crank two and now for the little bits and pieces I
realized the plate that goes behind the water pump covers missing I'll need to
grab one of those and then the cylinder studs are rusted and corroded never a
bad idea to replace those as with any engine build it is always
super nice to have new dowel pans makes everything go together really smoothly
so the dowel pins are the pins that go right here
in between the cases the cylinder in the cases and clutch cover had pretty much
any major component on the engine I figured I'd might as well to show you
what a dowel pin looks like for those of you that haven't seen them this is the
one off the cases on this bike as you can see it's got some rust and it's
chewed up a little bit from removal so having new dowel pins makes everything
slide together so much easier oh and one more thing I am in need of an outer
clutch cover - chances are there's probably a lot more than forgetting as
well you know what I just need to start writing all this down so I don't forget
all right I'm gonna go order this stuff up and as soon as it shows up along with
that wrench rabbit kit I'll be all ready to build so I've got the transmission
back from trick engineering and first off it is just freakin beautiful
everything is super shiny but more importantly the finish is incredibly
smooth just running a finger over it you can tell the tremendous difference and
that will translate to a transmission that works a whole lot better for you
guys looking to get your transmission done with the super finishing process
definitely hit up trick engineering they've got the quickest turnaround time
and best pricing I've come across another order just showed up and this
one I am super excited about it is a nihilo concepts engine stand basically
what you can do with this is securely mount your engine to stand and build it
all the way from the cases to the top end so you just run these studs through
the engine mounting holes and fasten it to the stand we've got a few different
spacers here to accommodate pretty much any engine out there one of the coolest
features about the stand is you can rotate the engine to any angle you need
give you a little demonstration here you just pull the pin and it rotates all the
way around super handy for building an engine and then of course we've got a
drain pan here as well and that'll collect any parts hardware or tools you
might drop and the drain pan just goes underneath the arm right on to these
bushings here pretty slick actually you know what I'm gonna bolt
together the cases and set this thing up I cannot wait around any longer so I
haven't shown you guys what I've done to the engine cases yet so check this out
I'll have a whole video covering the entire process of shining these things
up but for right now I'm gonna mount them up on the engine stand pretty much
it's gonna configure these mounts however the cases will mount up on here
so this is gonna go through the rear mounting hole where the assuming our
bolt goes through and this should be for the lower or the very front now on the
cases
so I've got the cases mounted up on the studs but it looks like it's gonna make
more sense to pull off one of these brackets here it's kind of in the way
I'll show you on the other side so this bracket here is gonna prevent me from
rotating the engine completely around so I'm gonna pull it off and see if I can
get things aligned up still
that's a whole lot better this thing is on here super secure it's not going
anywhere so this other bracket would be more for
a different size engine or if you had different configured motor mounting
holes and I ended up with a little larger spacer in the back compared to
the front just to get it centered on the stand you definitely want it square
within the stand now it's time for the fun part to rotate the engine around you
just pull the pin on the end and you can spin it around to any position you
desire go upside down push the pin in lock it into place or you can go flat
super secure here on the stand I'm telling you what this is gonna be a
lifesaver when it comes to building this engine we're gonna pull everything apart
and show you what it would look like right from the get-go of starting the
engine build all right this is exactly how the engine build is gonna start out
gonna have the right case mounted up spin the stand to about flat right about
there and then I can get started pop it in the bearings crank and transmission
components needless to say I could not be more excited to get started with this
engine build so guys check out in Hilo concepts com they've got a ton of trick
parts over there and cool tools like this engine stand I'll put the link to
their website down below more dirt bike parts who can complain about that so the
sprint traffic kit is really gonna be the core of this engine rebuild it's
gonna cover a lot of the components I'm replacing see what we've got inside here
looks like a gasket set yep complete gasket set here it's pretty necessary it
should have a crank piston and a bunch of bearings of Steel's in here all right
we've got a vertex piston open that up later looks like some transmission seals
the crank main bearings and seals water pump rebuild kit and then some
transmission bearings as well so this should cover all of the bearings of
seals in the bottom end and then most importantly is a crankshaft see if I can
open it up here
there she lies that's really gonna be the ticket right there man this is gonna
be so nice pretty much just got to drop it in and she'll be ready to go
pretty pain-free solution compared to rebuilding the old crank I'm gonna check
out this piston for the heck of it it's pretty cool
vertex wrench rabbit pivot works and hot rods are all the same company so it's
pretty awesome when they combine their efforts and put together a rebuild kit
like this makes it really easy for the consumer looks like we've got the rings
piston pin and circlips and down here is the piston check out
that beauty I cannot wait to make this thing go a million miles an hour like I
was saying earlier it's pretty crazy how you can just click one button and you've
got all the necessities to completely rebuild the engine showing up at your
doorstep rent drop it makes it so simple for us so guys go hit up rent rabbit
they've got things figured out so literally as I was filming this video I
heard a Clank out on the front porch the mail lady hooked clutch cover it out of
the window on her car but thankfully it didn't get busted up at all so you guys
know I got something cool planned for this clutch cover stay tuned and here's
a few more pieces of the puzzle that Rocky Mountain sent over got a new
clutch kit with all the plates and springs an inner clutch hub and then a
bunch of om odds and ends that I was talking about earlier
mostly dowel pins studs washers that kind of thing all the little stuff that
could potentially hold up the engine build so it looks like I'm covered there
the last part I'll need is a new cylinder and I've got one on the way
from Rocky Mountain but in the meantime there is still a lot of work that can be
done I got to give a big big thank-you to the companies that are supporting
this engine build we've got red rabbit which includes hot rods and vertex Rocky
Mountain Cayman clutch with a clutch components and om pieces trick
engineering did the incredible super finishing process on the transmission
and of course we've gotten the Hilo concepts with their amazing engine stand
and Maximus stepped up with their oil and assembly lube so guys go support the
companies that support what I do and honestly these are the companies that be
using regardless let's go ahead and pick the winner of
the prime MX sticker pack from the last video just got the comic picker pulled
up here got the URL punched in give it a minute while it loads up those comments
alright this is gonna pick a random winner it's always cool seeing all those
names scroll by alright so you got to stay to Stoke somewhere in the comments
um oh he did say to soaked we've got bit plain brother and he says
nice video again I did press wash my bikes and I still do greetings from
Germany and you stoked of course so a bit plain brother send me a message here
on YouTube I'll get your shipping address and I will mail these stickers
out to you Congrats man and of course for everyone else you could support the
channel by grabbing your own sticker pack over at prime MX com I'm gonna wrap
up this one right here the next video will be on how I shined up these engine
cases I'll have it up in a couple days so may 27th is when it'll be live so
stay tuned for that one and then after that video I'll have a flurry of engine
build videos coming out so I would definitely recommend hitting that
subscribe button down below alright thanks for watching guys keep it prime
my friends