Hi and welcome to this segment of RRR Tool Solutions
tool demonstration videos.
We want to talk about our frame kit today.
This is specificity designed for the CB 750 Honda.
A Single over-head cam
produced from 1969 through 1978.
Fits the K models and the F models.
The idea is that Honda, put a dry sump engine,
736cc, into the CB750 Honda.
And when they did that, their intention was
that these would not be serviced in the frame.
There is literally a quarter inch of clearance,
between the frame rails, that were originally there
and the top of the engine cover.
The only way to get these covers off,
is to unbolt the right side,
pull this engine completely out of the frame.
Lifting it up and clearing the sump.
To alleviate that, a lot of drag-racers
and builders, through out the years,
would cut away their frame
and leave just simply one back bone
going from front to back.
I never felt comfortable with that
and certainly wouldn't condone it.
So, what I did, when I did my 750 Honda
back in 2006, is I came up with a way
of replacing the missing rails.
You can do that by using our frame kit.
Which incorporates part of the triangulated brackets
that come with the frame.
These are simply cut-off
halfway up to the upper neck back-bone.
We use joints.
These are very robust very heavy-duty half joints.
This is a 180 thousand psi oilman rod
that has a 180 thousand psi tensel strength.
It's a harden rod.
It goes into this insert 1.1 inches
and is threaded and kept in there with Lock-tite.
These joints fit together, with grade 8 hardware.
These button-heads make simple work
of holding these fasteners together.
There is a little bit of clearance here.
Left here for powder coat or paint.
This is made to be a very tight fit,
very strong, very durable.
I have been asked many times, what the strength
of this joint system is,
as compared to the thin walled tubing.
I am quite sure that this tubing would bend
like spaghetti, before we ever damaged
one of these inserts.
I've got this separated to show you a couple of things.
One, you are going to get a grade 8, jam nut in here.
This is a 7/16 by 20. It's a grade 8 hardware.
This is not for ajustability. What this is for,
is to simply lock in place.
We'll put it on here. I'll show you.
This is a blind insert. This insert is fully threaded.
Again this is slightly over one inch
This is fully threaded and is welded
up into the inside of the front rails.
Very important to follow that. Because what this allows.
And this is welded in this area right here.
What this allows is removal of this cylinder head cover.
And the cylinder head. So you can get to the piston,
the rings, the valve train and so forth.
As well as once that material is removed.
Getting the whole engine out is a whole lot easier.
But, this does allow for in-the-frame building
and servicing, of internal components.
Other wise not possible on the 750 Honda.
It's very important that these blind inserts are there.
So that when these are threaded in.
I'll show you the importance of that.
As you see, this assembled piece
will literately unbolt and leave this whole area free.
What we've done here, again we've turn this on the side
It's very importance that you see the clearance.
We've gone in and simulated, the fact that we've welded
in the blind-joints. Which again you saw the threaded 7/16 twenty,
the threaded 7/16 twenty, 180 thousand psi,
oil-rod used.
Inserted 1.1 inches down into the joint.
This is a solid steel billet joint.
You seen us go in there.
The importance of that is that this section,
along with the threaded rod, will completely unscrew.
Giving unrestricted access, for the cover
and the cylinder head,
to come up through the frame.
The other thing is we went ahead and simulated
the welding in of the back joints.
Again this is necessary so these will stay fixed.
We are going to put this all back together
so we can now have a ridged frame.
And again replace the structural integrity.
So what we will do here is we will.
And there's two bolts on each joint.
And these are grade 8 bolts.
You can torque these down to 14 foot lbs.
I would encourage you to use
a locking agent. Such as Lock-Tite Blue,
medium strength.
That's what I use.
Now, this is a demonstration model.
Obviously the factory piece would have another
triangulated piece here to hold that together.
You would be dealing with a single bracket.
This was for demonstration only
to show how the joints were put together.
I'll show you again on this side reaching over
how easy this was.
One of the things we'll show you here in just a minute.
The reason this was done this way,
will be very obvious.
One we wanted a very strong
with a lot of integrity
Two we wanted this to be completely invisible.
Such that
once assembled and put on the motorcycle
and the gas tank returned.
This would not be visible from the side.
From anywhere.
Even somebody looking for any modifications
Or repairs, would not be able to see.
Now, that is the kit installed.
We have this bracket here.
You would come in and you would bolt
from the top and bottom, so that you
would tie that triangulation back in together.
We're using grade 8 bolts for this.
And there is two of those supplied in each kit.
I am going to turn this around so that you can see,
how well
and how that fits back into the frame.
One of the things I want to show you,
how this kit integrates with the factory frame.
In a restored, heavily modified, or custom build.
One of the most, important criteria of this kit
Was strength,
the second being absolutely invisible to the naked eye.
You will notice there that the fuel tank
completely covers it.
The stock ignition switch,
can be mounted where it goes.
And no part of this can be seen, unless you actually
get up under the bike,
and look at it from the bottom side up.
That was the design goal.
Even up here in the front, where this gap is
between the tank and the frame,
all of that is the stock frame.
The insert, the blind inserts weld
to the backside of that switch.
This footage shows the right-hand side of the bike,
and again in complete concealment.
Under the tank between the seat and the tank
is completely maintained.
The kit is installed from this point
to about this point.
I am showing this area right here.
Neither with the seat up or looking from the front
can these be seen.