!978 CB750 build

[Piute]

    
Thought the same thing Luke But I checked 1st and it is right   How ya wont that crow

[JPSmee]

TOOLS1 wrote

Shiny uses UPS, so I would allow 3 to 4 weeks, for delivery.
TOOLS

He also makes his own boxes

[Lucky 1]

I know I did it right but I went out and checked again.
I had forgotten that the front tire is unusual because
 it can be mounted on the front or rear of a motorcycle.
It has two arrows pointing opposite directions.
One arrow says for front mounting, and the other arrow says for rear mounting.
The rear tire just has one arrow.

Now...about that eating crow? LOl...lol..

[LukeM]

Hmm....

Smoked, deep fried, doesn't really matter.  I was wrong, and I admit it.

Now I can no longer be trusted...like Mayhem on the insurance commercials.

Luke M

[Piute]

     


                    TOOTH-PICK

[Lucky 1]

It is a good thing to make sure your tires are on correctly.
We sure have here don't we? LOL....lol...lol

[shinyribs]

JPSmee wrote

TOOLS1 wrote

Shiny uses UPS, so I would allow 3 to 4 weeks, for delivery.
TOOLS

He also makes his own boxes

What can I say...im crafty like that

Im still trying to figure why a tire would need to rotate in two different directions depending on which end of the bike it is on

[Lucky 1]

"Im still trying to figure why a tire would need to rotate in two different directions depending on which end of the bike it is on" (Shineyribs)

That is a pretty good question .

I would say it is because on the front the tire is rolling and not under acceleration forces?

They both would be braking with the same forces.

Good question.

[LukeM]

I was thinking the tread pattern is supposed to channel water away from the tire, if it's spinning the right way. Buy out may not matter with this tread pattern.

By the way, I went with roasted crow with a side of rice pilaf, and a nice chardonnay.

Luke M

[Piute]

  " I was thinking the tread pattern is supposed to channel water away from the tire "
Center out yes 
 and since the front tire already dispersed the water the rear need to grab, These new tires are great for dry roads but to me not near good enough for riding in the rain,reason i choose a cross tire or something with more cut in the meat, I do believe they don't expect people to be riding in the rain and those that do alot would change the type of tire , like one would do for driving in the snow like this morning.

[shinyribs]

donald branscom wrote

"Im still trying to figure why a tire would need to rotate in two different directions depending on which end of the bike it is on" (Shineyribs)



I would say it is because on the front the tire is rolling and not under acceleration forces?

They both would be braking with the same forces.

My thoughts exactly,Donald.I really was hoping(expecting) you had an answer for that one!

[Lucky 1]

Excellent choice sir .

[shinyribs]

I got your "letter",Donald.That was unnecessary,but thank you.

[Lucky 1]

You are welcome.

Now I am wiring my bike and I ran into a problem.
All of the wiring is 1975.
New harness (1975) and all new parts. There were a few used parts.
Anyway the problem I have now is that the right handlebar switch is a 1978 and none of the wires match up and it does not look like I can easily work around it because of the clutch switch and all.

I am looking for a 1975 or K3-K7 right handlebar switch.

I can trade my 1978, or pay for a 1975 if it is available.
Can you help?

[shinyribs]

Not trying to nitpick here but,im confused on the right switch gear/clutch switch issue.You know,since the clutch is on the left?Uh...I have an old set of handle bars with complete switch gear on them.But I have no idea of the year.I can get a pic if that will help

[TOOLS1]

Do, you need the one with the headlight on/off switch in it?
TOOLS

[Lucky 1]

The 1975 model bike had a starter motor safety switch and all the wiring to accomodate that system.
It included a switch in the left clutch lever with a switch to make it work.

My 1978 bike did NOT have the starter motor safety unit but had a diode and clutch handle switch.


But the wiring is very different. on those two systems.

If the right handlebar switch has a black /red wire  coming out of it it is the newer system which did not use the starter motor safety unit. I do not want that kind. I already have it.

I need the right switch housing that has 5 wires coming out of it.
two black wires ,one black/white stripe, a yellow /red wire,and a red /green wire.
That was K3-K7.

What I am trying to do is just make it all 1975 wiring from beginning to end.

[Lucky 1]

Yes I think so.  It is the one in the K3-K7 wiring diagram.

What is odd though is that on that factory wiring diagram in the Clymer manual there is a mistake.
On that right switch it says "HORN" next to the red/green wire. It should say START.

If you look at the bottom of the page (K3-K7 wiring diagram) at the left switch, it shows the "HORN" button and that IS the horn button.

[Lucky 1]

The clutch lever pedestal has  a small hole where two wires come out. A green wire and a green/red wire.
That is what makes it so that you can start the bike IN GEAR with the clutch lever pulled in.


The older model K3-K7 Had the two wires coming out next to the clutch lever and that signaled the starter motor safety unit. So you could start the bike IN GEAR with the clutch lever pulled in.

The later models use a DIODE and that same switch in the clutch lever housing mount to do the same thing,
 NO starter motor safety unit but a DIODE instead, but the starter solenoid was wired differently.

IF someone here really thinks I should just UNPLUG the starter motor safety unit and get rid of it I might do it.
You cannot buy them new anyway and it will just be trouble later on down the road.
As far as I know you just unplug the SMSU (starter motor safety unit) and then jump the yellow/red wire to ground? And what does that give you? Just make sure it is in neutral before starting?  I could live with that.
That is the way it used to be anyway.

[Piute]

 That dang Clymer Manuel has lots of mistakes must check all with others ,thought it should be perfect
was another of my Lil mistakes in trusting .