Author Topic: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)  (Read 49516 times)

0 Members and 2 Guests are viewing this topic.

Offline Desert-SOHC

  • Expert
  • ****
  • Posts: 1,015
  • It's old
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #100 on: March 08, 2016, 10:52:43 PM »
LMAO.....your as OCD as I am when I do stuff!
90 F350 Lariat CS S/C Dually
90 S&S 11SC Cabover Camper
97 FLHTP (under construction)
11 Ranger S/C 2wd

Offline disco

  • Hot Shot
  • ***
  • Posts: 571
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #101 on: March 09, 2016, 01:24:21 AM »
Very nicely done Mystic! I've always dreamt that one day I might build a SOHC chopper, but never had the guts to do so. Hat off to you Sir.....
1976 CB750 K6 Sapphire Blue
1972 CB750 K2 836 Orange Sunrise
1972 CB750 K2 Candy Red
1972 CB750 K2 Candy Gold'

Offline maduncle

  • Don't confuse me with a
  • Hot Shot
  • ***
  • Posts: 471
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #102 on: March 09, 2016, 03:07:47 AM »
Holy cow!

Late comer to this build thread but loving it.

Quick question - your swing arm clears the rear peg mounts but does the clearance allow for any bolt head on the inside of the peg mount as well? Or will your passenger footpads mount on in some other way?
CB750K2 (only slightly modified)

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #103 on: March 09, 2016, 04:06:04 AM »
Quick question - your swing arm clears the rear peg mounts but does the clearance allow for any bolt head on the inside of the peg mount as well? Or will your passenger footpads mount on in some other way?

Well the swingarm will never really pivot that far,  so its not really an issue.  There are bolt heads there now, I ran the bolts through from inside to out and then the footpegs secure the exhaust hanger brackets to the frame.  You'll see more of this when I get around to detailing the final exhaust bracketry.

In its final configuration, the tire would have long since bottomed out on the fender long before the swing arm contacted these bolt heads.  Good question, though!



LMAO ALMO.....your as OCD CDO as I am when I do stuff!

Your letters were not in alphabetical order.  FTFY FFTY  ;)


Very nicely done Mystic! I've always dreamt that one day I might build a SOHC chopper, but never had the guts to do so. Hat off to you Sir.....

Thanks, it took some guts to hack into things this far, but I'd figured that if I was going to need to tear down the motor, might as well do everything else too.  Go big or go home, as it were, or in this case, go big AT home :)

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #104 on: March 09, 2016, 07:43:51 PM »
So the donor exhaust system, which I'd been running for several years prior to this rebuild, are early 80's DOHC honda pipes, similar to this:



I stole the hanger brackets from these.


and cut them up to make brackets for the new mufflers. 


You can make out the chrome button-head fasteners that I ran into nuts in the channels to secure the mufflers to the brackets.  The angles were almost exactly what I needed, I added some 1/4" spacers to one of the fasteners on each side later to get things just right.  The button heads don't stick out much, allowing me to position these nice and tight against the side of the bike.





Trimmed the excess





Hit them with some paint and bolted them back up to the mufflers







Ready to hang.


mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #105 on: March 09, 2016, 08:52:30 PM »
I thought I had better pics of this next part but I'm guessing I lost them during a hard drive crash I had a while back.

Anyhow I neeeded to bridge the gap between the ends of the header pipes and the mufflers.  So, using a couple different diameters of exhaust tubing, I bent up and created some adapters.

These slip over the ends of the headpipe in front, and then into the muffler in back.  Painted them with high temp silver.  Sourced some wide band clamps to hold it all together.  Small slits in the front end of the adapters allow them to clamp down onto the header pipes.

















mystic_1

"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #106 on: March 12, 2016, 07:39:10 PM »
Finally ready to start covering up some of this bare metal.

Got all the pieces cleaned up, degreased.






Did some preliminary body work on the rear fender.  Probably could have spent some more time doing hammer and dolly work rather than filler work, but managed not to slather it on too thickly.





So I have this tiny little one-car attached garage.  In order to paint in it and also not die, I had to do some prep work.

Took an old 24" box fan, and put it inside a 24" box.


I then purchased two 24" pleated paper air filters for furnaces.  Taped them together.


Then folded them like this and put them inside the box.




This design gives you twice the filter area as simply taping a single filter across the box, so the filter media doesn't load up as quickly and you get better airflow for longer.

I then draped plastic sheeting from the ceiling and taped the box in place, then used extra cardboard to direct the output air out through the bottom of the garage door.


Not pictured, on the opposite side of the "tent" I cut a hole in the plastic and added another filter there as an inlet, so that I wasn't creating negative pressure inside the tent.

The floor was lined with old cardboard boxes flattened and taped down, and then the edges of the plastic draping was taped down to the cardboard.

The paint that I was using is mostly Spraymax brand two-part urethane paints and primers.  This stuff will kill you dead if you breathe it in, more so than the regular dead you get from breathing in non-catalyzed paints, so I bundled up and wore full PPE.


Sort of wished I had a fresh-air respirator but I limited my exposure inside the tent, vented the garage while I was painting, and changed to fresh mask filters each day.


Threw down a coat of etching primer on everything.




Then a bit of urethane primer




and finally a preliminary base coat of black.


Doing a bit of filler work on the frame.  In the 70's guys would really slather on the filler, molding all of the welds and so forth, but I decided i wanted minimal filler on the frame.  I'd sort of come to like the ugly factory welds and wanted to leave them sort of visible, while also covering up all of my modifications so they looked seamless.


Blocked out the fenders.  The front didn't need much work of course.



more to come

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #107 on: March 12, 2016, 08:13:44 PM »
More painting.   



After body work, all parts got three coats of black and three coats of clear.  Wet sanded between each coat.




Due to space limitations, I had to do the parts in batches.  Between that, and letting parts cure overnight, wetsanding between coats, setup and cleanup time, etc, painting took a couple of weeks overall.

Paint ALL THE THINGS!

In this pic you can see the air inlet filter for the tent that I mentioned earlier.







Fenders turning out nice.  Little bit of orange peel, got rid of that during wetsanding of course.



Did the oil tank too.





And the battery box.  You can see the Spraymax cans too.


And the caliper





The plastic inner fender got shot with Krylon Fusion for plastic.





Can't find pics of painting the tank and side covers, but those got shot at this time also. 

The body work also got buffed down after curing for a few days.  Possibly too early to be doing this, a lot of places recommend letting the paint cure for a few weeks before polishing, so I kept the pressure light and just a quick pass for now.













All painted up and ready for reassembly to begin!








mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #108 on: March 12, 2016, 08:56:12 PM »
I gotta say for the record that I really like the Spraymax paints.

Where the hell has this stuff been all my life?!?!

For those unfamiliar, this is a two-part catalyzed paint, just like what you would mix up and shoot out of a professional spray gun, but this stuff comes in standard sized spray cans.


To use these, you first turn the can upside down and depress a plunger on the bottom of the can.  This releases the catalyst into the rest of the can where it mixes as you shake the can.  You then have 24 hours to shoot the paint before it hardens up inside the can.

The nozzles are pretty good too, they have an adjustable orifice and a pretty good fan pattern.  I noted a little tendency to spatter towards the end of the can but keeping the nozzles nice and clean between uses helps reduce that.

Because it's a catalyzed paint, you can recoat pretty quickly (3 to 7 minutes), and it's dry to the touch in an hour or so.  I let the paint harden up overnight before doing any wetsanding. 

The sanding and buffing went really well too, working with a real urethane paint after years of spraybomb enamels was refreshing.

The one downside to this paint system is that you don't get as much yield out of a single can as you do from a regular spraybomb, because the catalyst chamber inside the can takes up some of the volume.   

The cans contain 9.9oz of paint, and the data sheet claims coverage of "approx. 5.4 – 8.1 sq ft / aerosol at a dry film thickness of 1.2 – 2.0 μm"


In addition to the the 2K Rapid Urethane Primer, 2K Black Gloss base coat, and 2K Glamour High Gloss clear coat, I also ordered up a can each of House of Color Oriental Blue and a Spraymax Silver Steel Blue Metallic to play around with.  You can see a couple of test pieces shot in these colors above.

My original plan was to shoot a base coat of black over everything and then blue over the top of that on the tank and fenders, but it all came out looking so nice in the black that I just left it like that for now.  I can always go back and do this in the future if I decide I want to.

All paints were ordered from http://www.66autocolor.com with good results.

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #109 on: March 13, 2016, 08:37:39 AM »
So a few remaining pre-assembly tasks.



Time to do the swingarm bushings on the "new" chrome swingarm.  Other threads detail this process in more detail.  I went through my collection of parts and picked the pivot sleeve that was in the best condition, and used the pivot bolt that I'd prepped upthread.



New bushings, these are the early style flangeless style, not the top-hat style.  These are the steel material that Honda sells now, and not the bronze (brass?) that was used in the past or as used by Mark Paris.  This is part of the reason I wanted to make sure I could grease these really well, to prolong their life as much as possible.



New felt dust seal rings and pivot caps.


Drove the old bushings out using the "grind a flat on each side of a washer, drop them inside the swingarm and lay them flat across the inside of the bushing, and drive them out with a long rod" technique, in this case an old Harley rear axle.

Used aforementioned old Harley rear axle, some tape, and an old pivot bushing to build a driver tool, then pushed in the new bushings.









The early swingarms used phenolic thrust bushings instead of the later tophat design to control end play between the ends of the swingarm and the pivot caps.  Digging through my bins I came up with a few in good shape and picked the best two.


The early-style bushings are pushed in to a recessed depth in the swingarm (deep enough to leave a gap between the inside of the phenolic bushingm and the swingarm pivot bushingm for the felt ring) then the felt seals are added...


... and then the thrust bushings  ...


... and then the pivot sleeve is slid into place and the pivot caps placed on top. 



The pivot caps sit on the ends of the pivot sleeve but do not press fully against the phenolic bushings, because the length of the pivot sleeve is slightly longer than the overall measurement from the outside of one phenolic thrust washer to the other.   I must admit that I didn't measure the end play but it was nice and close, but not so tight as to cause binding.

I'd rather have sent this all off to Mark Paris (Hondaman) for his premier swingarm rebuild service, but I was in a hurry by now, had the parts in-hand, and had done this procedure before.  Mark would have taken far more care with things, measured the end play, and he does up custom bushings in (bronze?) that are fitted to your actual swingarm and pivot collar for a really precise fit.


Ready for installation.



I also took the opportunity to polish up the rear brake backing plate (and the sprocket carrier).  Did you know that you can chuck up a polishing wheel to your angle grinder, since the shaft is essentially the same as on your bench grinder?






Also polished up the fork lowers a bit.









This.... isn't necessarily the best way to polish things   :P  But I was just looking to clean up a previous polishing job, and wasn't looking for a show-perfect finish, so yeah.


Also bent up a new kickstand.  This was originally an "extended" kickstand, harkening from the era when one threw longer forks on these bikes and called it a day.  You needed a longer kickstand then for a proper lean angle.  This is the type of kickstand I'd had on the bike before.

Since I'd put the frame back to a level position, this type of kick stand was now too long, so I measured things up and added a bend.  The first bend nearest the tip of the kickstand was the factory bend, I added the next bend to create a new "foot".  This also had the happy result of making the kickstand tuck up nicely behind the pipes while also leaving enough sticking out to catch with your toe.  Slight bend near the top fine tunes the final resting position.



mystic_1
« Last Edit: March 13, 2016, 08:40:08 AM by mystic_1 »
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #110 on: March 13, 2016, 09:04:18 AM »
It was supremely satisfying to bolt this part into place, knowing that it wouldn't be coming off again like in so many past mockups.





I'd pulled the bike apart in 2006.  The date on these photos are 2014.  :'(

Life is like that, sometimes.

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #111 on: March 13, 2016, 10:03:25 AM »
This thread is like a slow motion catch up!  But I still love it!
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #112 on: March 13, 2016, 11:23:03 AM »
Previously, on "It's a chopper, baby."...

"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #113 on: March 13, 2016, 11:39:58 AM »
Previously, on "It's a chopper, baby."...



That .gif file just scrambled my brain! ;)
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline budman

  • 1914X
  • Expert
  • ****
  • Posts: 1,450
    • LeCompte Electric Bass
It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #114 on: March 13, 2016, 06:49:36 PM »
How did you bend the kickstand without cracking the chrome?  I don't need to ad a bend, just bend my kickstand a little more at the current bend.
« Last Edit: March 13, 2016, 06:51:48 PM by budman »
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #115 on: March 13, 2016, 07:03:45 PM »
Prayer, mostly lol!

I was using the Harbor Freight Compact Bender



I did pad the center pin at the apex of the bends with some tape, and took things slowly, but really I think I just lucked out and this chrome was pretty well applied.

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #116 on: March 15, 2016, 07:18:46 PM »
So, using pieces of printer paper to keep from scratching up the paint, I guided the rear fender into place and bolted it up.






Here you can see the rear fender forward mounting from the inside.  The bolts with the fender washers hold the two fender sections together.  There's little metric stainless nuts on the other side.  You can also see where the tabs on the front extensions of the metal fender section bolt through the frame tabs and also through the plastic fender section.  Finally you can just make out the wiring ports I cut into the inner fender and heat-formed with a heat gun.






Hung the swingarm...


... and the shocks



Slapped the forks into place.




Prepped the rear wheel for installation.  Rear brake pivot and action rod are already in place.  Rear sprocket mounted with new nuts and lock washers.  New-old chromed axle spacer.  New axle nut and washer.  Chrome brake stay.




And then it looked like this!




Mounted the front wheel, upper tree, instruments, new bars and the front fender brace and caliper arm...


and then dropped it back down on the ground.  Gentlemen, we have a roller!




Mocked up a few more bits so I could stare it while I drank a beer  ;D



New center stand hardware..


... ratty old center stand that I forgot to paint  >:(


LOL #$%* it, I'll get around to it some day.



Coming up next was the part that I was dreading:





Kitty cat says:  "You have chosen.... poorly."


mystic_1
« Last Edit: March 15, 2016, 07:22:04 PM by mystic_1 »
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #117 on: March 15, 2016, 08:24:24 PM »
Oh, you have to be kidding me.  Stairs up from the basement!?
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #118 on: March 15, 2016, 08:29:34 PM »
Yup!   ;D

mystic_1
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline Desert-SOHC

  • Expert
  • ****
  • Posts: 1,015
  • It's old
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #119 on: March 15, 2016, 09:15:11 PM »
You had to lug the engine up those........bummer  :-\
90 F350 Lariat CS S/C Dually
90 S&S 11SC Cabover Camper
97 FLHTP (under construction)
11 Ranger S/C 2wd

Offline rickmoore24

  • Be led by your dreams, not pushed by your problems.
  • Hot Shot
  • ***
  • Posts: 747
  • I <3 SOHC4's
    • Rosenbard Films
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #120 on: March 15, 2016, 11:34:53 PM »
Oooh!!!! I read this entire thread and now this?? Stairs?? Carry an engine up the stairs? I almost died putting a complete engine into the front seat of my civic, but stairs? No man......
1972 CB750 K2 (Daily Runner)
1972 CB750 K2 (Sold)
1973 CB750 K3 (Hardtail 836cc)
1998 CBR F3 - R.I.P., went down on the 101 in Calabasas, Ca.
1995 EG6

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #121 on: March 16, 2016, 07:35:54 PM »
It's not as bad as all that, years ago when I rebuilt the motor the first time around, I lived in a third-floor walk up apartment.  I did have a roommate to help though, so that made it easier.  :D

In this case, I transferred the motor onto a small sturdy table and strapped it down.  This allowed me to stand above the motor on the stairs and pull it up one stair at a time, allowing it to rest on the stairs in between each pull.    Working slowly and steadily, I got the motor up to the top of the stairs.










Next I needed a way to put the motor into the frame myself without banging everything up.  I noticed that the rails on my bike lift were about the same distance apart as the lower mounting points on the motor.







Measured a little over 11.5 inches.


Frame dimensional drawing shows (14.21" - 2.62") = 11.59" between these points.


Bike lift has 12" between the centers of the rails, which are a little over two inches wide.



Needed a way to make sliding the motor easier, and wanted to be able to get it right up next to the frame before sliding it in, so I made up some adapters using sections of 2x3, some lag bolts, and some spacers that I had handy.










The spacers fit right into the holes on the bike lift.





Transferred the motor onto the bike lift...


... and slid it up next to the bike.






Here's the view from the inside of the frame, you can see how close i was able to get things.  From here, it's just a slight lift and slide the motor to the side.




Padded up the frame using carboard and painter's tape.





With the motor up against the frame, was able to slide the motor about halfway in, then straddle the bike, reach down, lift the motor, and slide it into place. 


And then it looked like this!


mystic_1
« Last Edit: March 16, 2016, 10:40:33 PM by mystic_1 »
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,733
  • SOHC/4 Member #1235
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #122 on: March 16, 2016, 09:27:45 PM »
That was no easy feat - coming up with a non-back-breaking, solo engine installation scheme.  Well done!
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline rickmoore24

  • Be led by your dreams, not pushed by your problems.
  • Hot Shot
  • ***
  • Posts: 747
  • I <3 SOHC4's
    • Rosenbard Films
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #123 on: March 16, 2016, 09:57:24 PM »
Bravo!
1972 CB750 K2 (Daily Runner)
1972 CB750 K2 (Sold)
1973 CB750 K3 (Hardtail 836cc)
1998 CBR F3 - R.I.P., went down on the 101 in Calabasas, Ca.
1995 EG6

Offline mystic_1

  • Really Old Timer ...
  • *******
  • Posts: 6,071
  • 1970 CB750K
Re: It's a chopper, baby. My CB750K0 rebuild (warning LOTS of pics)
« Reply #124 on: March 16, 2016, 10:42:16 PM »
The extra space I'd created in the engine bay by modifying the frame sure made this a hell of a lot easier!   :)



mystic_1
« Last Edit: March 18, 2016, 05:33:25 PM by mystic_1 »
"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0