Topic: Dorothy III - CB750

[70CB750]

Thank you, Sean 

She is in good shape in areas that count; the looks - hey at least she is not prettier than me 

Quite a surprise this morning, not only I sit 3" higher, but my butt slides all over the place.  The old seat had me wedged in one position and not even the hardest breaking made a difference; with this seat I checked myself above the tank at the stop sign.

I  guess using vinyl restoring liquid on the seat did not help either

[70CB750]

Getting used to the seat sucks.

I guess I was spoiled by the old seat, the position was much more locked in than the stock seat.  When the time comes, Dorothy will have a cafe seat.

[MoMo]

Thank you, Sean 

She is in good shape in areas that count; the looks - hey at least she is not prettier than me 

Quite a surprise this morning, not only I sit 3" higher, but my butt slides all over the place.  The old seat had me wedged in one position and not even the hardest breaking made a difference; with this seat I checked myself above the tank at the stop sign.

I  guess using vinyl restoring liquid on the seat did not help either

Didn't put two dents in the tank by any chance? 

[70CB750]

No, one is from a deer and the other from me dropping the tank.

[bjbuchanan]

You get used to the seat I totally understand what you mean. I went from a homemade bump seat to a stock seat and felt like I was on a slip and slide. You get used to it quickly tho. If you put the lightest weight on the pegs it will fix up the sliding. You become one with the bike lol

[calj737]

I think that form change takes a bit of time, but as 70CB said, the vinyl restorer probably is lingering and creating a bit of a slick surface.

[Terry in Australia]

Didn't put two dents in the tank by any chance? 

I don't think Prokop understood your subtle humour Larry, but I remember buying a Suzuki GS1000S a few years ago that had rear-ended a car, it had bent forks and frame, and two very distinct dents at the rear of the tank...............

[70CB750]

Getting her ready for the trip to Barber.



F-15 touring windshield, works well enough, I just need to find the best angle.

[MoMo]

Didn't put two dents in the tank by any chance? 

I don't think Prokop understood your subtle humour Larry, but I remember buying a Suzuki GS1000S a few years ago that had rear-ended a car, it had bent forks and frame, and two very distinct dents at the rear of the tank...............

Guess it was subtle, especially if he has never seen the result.  I've seen many dirt bikes with two telltale dents from rather abrupt stops.  Cannot imagine the pain...

[70CB750]

Hey guys, I am married. My wife has my balls - for safekeeping, she said.

[70CB750]

For the record, 1 and 4 plugs, don't look half bad.

[Stev-o]

And 2&3??

[70CB750]

And 2&3??

Too lazy to pull them, she runs the best I ever had her running.

[70CB750]

PZ is supervising calibration of vacuum gauges.

[70CB750]

She will get 4 new blingbling idle set screws. 

[Stev-o]

How'd you make that? Now that is impressive!

[70CB750]

How'd you make that? Now that is impressive!

Thank you. 

Not that complicated actually, my lathe will not cut metric thread so I used a die (M6x0.75 if you ever need to know) and home made jig to make sure the thread is coaxial with the pointed end.

The original is knurled, but now I am thinking it would be better to have finger cut outs - I may try that when I have a rotary table.

Synchronizing K0 is like working clitoris  - reaching in with your middle finger and you don't really see what your finger is doing, you are just watching the reaction 

[calj737]

...my lathe will not cut metric thread so I used a die (M6x0.75 if you ever need to know) and home made jig to make sure the thread is coaxial with the pointed end.

Might be easier to reverse the part, chuck it up in lathe, then spin up the part, cut power, and as it slows to a stop, push die onto stock to initiate the cutting. Eliminates a jig and insures the alignment. I use this method whenever I thread rod and always end up with a perfectly perpendicular thread. But then again, my machine cuts metric and SAE, so I only use it to "finish" tune the threads.

[70CB750]

...my lathe will not cut metric thread so I used a die (M6x0.75 if you ever need to know) and home made jig to make sure the thread is coaxial with the pointed end.

Might be easier to reverse the part, chuck it up in lathe, then spin up the part, cut power, and as it slows to a stop, push die onto stock to initiate the cutting. Eliminates a jig and insures the alignment. I use this method whenever I thread rod and always end up with a perfectly perpendicular thread. But then again, my machine cuts metric and SAE, so I only use it to "finish" tune the threads.

I am afraid I don't follow.  This is pretty much what the setup looks like (not my picture, illustration only):



The part is cut from solid rod of 304, the only time I reverse it is to finish the knob end, other than that, everything is done from right to the left without taking it out.

[calj737]

You've made a die holder to fit on your lathe? If so, nevermind, it's th same thing I was describing. I didn't follow your explanation. When you said "jig" I envisioned something used post-maching with the part un-chucked.

[70CB750]

 

[70CB750]

Another year.

[70CB750]

Good Bye, Dorothy.

What was planned as built done in a year, turned to be four and a half and 25,000 miles.  Her registration expires this weekend and I will turn her plates in.

Trip to Barber and Tail of the Dragon and numerous Godzilla/Pimpzilla miles. One killed deer and one brushed aside, she never let me down.

Now, what am I gonna do with you? 

[70CB750]

Replacement ready to fill those large shoes 

[Stev-o]

Only one thing to do to such a good bike.....restore, and bring her back to her former glory.