Author Topic: 1973 CB350F - First full resto  (Read 9561 times)

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Offline hashvm

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Re: 1973 CB350F - First full resto
« Reply #25 on: December 23, 2016, 02:37:52 PM »
Great project .. I can't wait to see the final result

Offline JustDennis

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Re: 1973 CB350F - First full resto
« Reply #26 on: December 23, 2016, 04:29:52 PM »
I'm subscribing. My first bike was a 73 cb350f also. Got one just like it from my wife for Christmas. I've been reading on the forum in prep for starting to refurbish it. I've never restored one before but following yours. Looking good


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Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #27 on: December 24, 2016, 09:20:46 AM »
I built my hubs using a new set of AllBallz bearings. It took me a few tries to get the lacing pattern down. You can see I have the FAQ on lacing wheels open. As long as you follow the pattern usually marred into your hubs from the previous spokes (assuming they were correct to begin with) then this isn't really that hard. A tip for everything wheel and tire related, take small bites. A little adjustment here and there, don't go too big.




Once I got the wheel hand snug all around I put it on the stand and mounted my dial gauge.




Following the FAQ I checked my "hop" and "wobble" and made teeny adjustments at a time (1/4 turns) to pull it into spec. I would love to say that this went perfect and was easy, but there is a learning curve for sure. I figure I spent six hours playing with this wheel. I took it fully apart at least once and started over. However I did eventually get the knack of it and ended up with a decently true wheel. This is a CB350F, it's never going to break 85MPH, so I'm comfortable with these numbers




Once it was where I wanted it, I used the torque wrench and went around the wheel and tightened every fourth spoke a half-turn starting on the inner brake side, then inner non-brake side, then outer brake side and finally outer non-brake side. Just keep doing this pattern and eventually the wrench will click, when they all click you're good to go. The back wheel only took a couple hours and came out even better than the front  as far as the runout measurements (I think I got it down to ~0.5mm). With new wheels and spokes I'm confident saying I can do this process in about 90 minutes per wheel now.




What's next? Tires you say? Oh look, some Avon RoadRiders.

« Last Edit: December 24, 2016, 09:52:56 AM by Dnor72 »

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #28 on: December 24, 2016, 09:39:25 AM »
I don't have any pictures of mounting the tires because I was busy cussing and screaming. I used three tire spoons, some Ru-Glyde tire lube, baby powder and two Bead Buddies. Again, like the wheels, the first one took forever. After I was done, I aired it up and heard the dreaded "hisssss"...pinched the tube. Ugh. Second try went much easier and the rear tire was cake.

Tips:
1. Apply liberal amounts of baby powder to your inner tube, don't be shy. On one of them I put a little air in the tube to give it some form, but I don't know if it made a difference or not.

2. Make sure that wherever you start tucking in the sidewall, that opposite of that, the tire bead is on the inner recessed portion of the wheel. It gives you just a little more clearance on the part you're working on.

3. Use all of your spoons. I think three is good number, but if I had a fourth I would have used it. Apply lube where you are using the spoons.

4. I knelt down and used my knees to force down the side of the tire I was working on.

5. As you work your way around, keep an eye of your valve stem, adjust it to keep it straight.

6. Small chunks at a time and don't jam those spoons in too deep or you will pinch the tube.




I'm confident doing this now. Just like the wheels there's a learning curve. I bought some removable spoke weights, put the wheel/tire back on the stand and balanced them. The rear needed almost nothing and the front needed a couple. Balancing is pretty easy if you've done your work up to this point.

Still waiting on the swing arm from Hondaman, so I'm moving on to paint and body work.
« Last Edit: December 24, 2016, 09:56:03 AM by Dnor72 »

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #29 on: December 24, 2016, 10:50:59 AM »
I'm subscribing. My first bike was a 73 cb350f also. Got one just like it from my wife for Christmas. I've been reading on the forum in prep for starting to refurbish it. I've never restored one before but following yours. Looking good


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That is a nice Christmas gift for sure. You've got a keeper there. What kind of shape is the bike  in?


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Offline JustDennis

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Re: 1973 CB350F - First full resto
« Reply #30 on: December 24, 2016, 11:20:02 AM »
I'm subscribing. My first bike was a 73 cb350f also. Got one just like it from my wife for Christmas. I've been reading on the forum in prep for starting to refurbish it. I've never restored one before but following yours. Looking good


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That is a nice Christmas gift for sure. You've got a keeper there. What kind of shape is the bike  in?


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It's running, seems mostly original, 22k on the clock.   I plan to take some pics and post a build thread. I don't technically get the bike until tonight but it's hard to hide it so I snuck a peek. More to come soon and yes "she's a keeper!" 


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Offline markreimer

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Re: 1973 CB350F - First full resto
« Reply #31 on: December 24, 2016, 12:03:01 PM »
Daaaaamn this looks so good!!! What is hondaman doing with this swingarm exactly?


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Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #32 on: December 24, 2016, 01:13:48 PM »
Daaaaamn this looks so good!!! What is hondaman doing with this swingarm exactly?


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Hondaman offers a swing arm rebuild service where he installs new custom fitted oil impregnated bronze bushings, he checks the collar for roundness/fitment and installs standard grease zerks on both ends. He turns it around in a few weeks and is top notch.

http://sohc4shop.com/catalog/product_info.php?manufacturers_id=12&products_id=35&osCsid=71495c3f81eee800fb9a0176b3e98094

Offline markreimer

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Re: 1973 CB350F - First full resto
« Reply #33 on: December 24, 2016, 02:49:53 PM »
Ah, cool. I did that on my 750 a few years back. The zerk conversion is a must!


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Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB350F - First full resto
« Reply #34 on: December 24, 2016, 03:38:28 PM »
Well done. Nice new shoes too.
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 Dnor72

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Re: 1973 CB350F - First full resto
« Reply #35 on: December 27, 2016, 12:12:34 PM »
I knew I wanted to make the bike it's original Candy Bacchus Olive color, I read somewhere here that a member had found an old Jeep Cherokee color a close match: Moss Green. I sourced a can and gave it a try. Pops said it wasn't right, too blue. So I order a basic CBO aerosol kit from VMR paints. It includes a metallic blue basecoat (sort of a Windsor blue) and a pearlescent green candy topcoat. I did a quick sprayout to see how the colors compared. Here you can see the VMR CBO paint vs the original beat down CBO vs the Moss Green Pearl.








I decided to go with the VMR paints.




I used some 60 grit paper on an orbital sander and stripped the tank down, and hit it with an epoxy primer. I then did my body work, just a couple of dings really using Rage filler. Then hit it with a high build primer and sanded that with 600 dry before hitting it with color and clear.

Stripped


Epoxy


High build


Sanding with guidecoat


Basecoat blue plus candy green plus clear.





I had some orange peel, so I wet sanded with 800, 1000, 1500 and 2000. I then polished with a dual action orbital polisher using Meguiar's 105 with a medium cutting pad, followed by 205 with a light cutting pad and 205 again with a polishing pad.



I followed the exact same process for the fork cases/ears and a similar one for the side covers. The side covers I hand sanded with 320 grit instead of 60 grit and the orbital.

I then applied a decal kit from cbdecals, a reproduction chrome cap and reproduction badges from suziparts on eBay.

« Last Edit: December 28, 2016, 11:37:11 AM by Dnor72 »

Offline markreimer

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Re: 1973 CB350F - First full resto
« Reply #36 on: December 27, 2016, 12:32:24 PM »
Omfg. That's all I can say.


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Offline calj737

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Re: 1973 CB350F - First full resto
« Reply #37 on: December 27, 2016, 03:01:50 PM »
Omfg. That's all I can say.


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Took the words right out of my mouth. Really looks fantastic  :D
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline b52bombardier1

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Re: 1973 CB350F - First full resto
« Reply #38 on: December 27, 2016, 03:05:03 PM »
Your tank efforts are very good and very timely for me. I'm about to do the same on my tank.

Rick

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1971 School Bus Yellow Aermacchi H-D Sprint 350
1972 Candy Yellow CL100 K2
1972 Candy Jet Green Honda CB500
1973 Mighty Green ST90 K0
1974 Mars Orange CT90 K5
1975 Topaz Orange ST90 K2
1976 Shiny Orange CT90
2006 Honda Foreman 500 (restored)

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #39 on: December 27, 2016, 04:42:42 PM »
Thanks guys. I'm pretty happy with the results.  ;D If I was to do it again I would upgrade my compressor and buy a paint gun instead of using the aerosol cans. The cans get pricey.

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB350F - First full resto
« Reply #40 on: December 27, 2016, 08:21:05 PM »
Phenomenal.
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 riverfever

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Re: 1973 CB350F - First full resto
« Reply #41 on: December 27, 2016, 08:26:22 PM »
Really impressed with how the paint turned out. That's an area that I'd like to get better at. Actually...it's like...one of 4 areas that I'd like to get better at. Nice job.
http://forums.sohc4.net/index.php?topic=127186.0

"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols

Offline FlyingLowStevo

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Re: 1973 CB350F - First full resto
« Reply #42 on: December 28, 2016, 06:19:36 AM »
Really impressed with how the paint turned out. That's an area that I'd like to get better at. Actually...it's like...one of 4 areas that I'd like to get better at. Nice job.
Wow, just went through the entire thread...
As I am a newbie right at the beginning of this process on my 78 CB550. Thanks for great photos, information & inspiration! Looking forward to seeing the finished bike.


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Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #43 on: December 28, 2016, 10:29:41 AM »
I rebuilt the forks and replaced the seals, which went pretty well. I was expecting the seals to be a bear, but they came out with only a little muscling and this tool. The chrome cases that mount to the top of the forks were a pain to remove. I secured the fork in a vise and slowly hit them off with a flat drift. Once I had the new seals in place I put them back together with some fresh ATF.






Before the bike got too heavy I decided to put it on my motorcycle jack. I installed tapered bearings from AllBallz into the steering stem and installed the front end with the freshly painted fork cases and a repro front fender from DSS.


« Last Edit: December 28, 2016, 10:33:08 AM by Dnor72 »

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #44 on: December 28, 2016, 10:58:36 AM »
Swing arm from Hondaman is in tha house! From here things move pretty fast. OEM winkers, repro rear fender and rear shocks from 4into1.






Refurbed gauges, freshly painted headlight bucket, front and rear wheel/tire/brake, aftermarket brake lines from cruzinimage, replacement wiring loom from DSS, PAMCO ignition, electronic winker relay, Oregon Motorcycle Parts separate regulator and rectifier, OEM grips, OEM throttle/clutch/speedo/tach cables and reproduction master cyclinder.







« Last Edit: December 28, 2016, 11:51:23 AM by Dnor72 »

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #45 on: December 28, 2016, 11:36:04 AM »
I cannot stand poor lighting and the original Stanley sealed beam leaves a lot to be desired. There aren't too many options for the smallish bucket on the CB350F, I chose to give the Candlepower 6 3/8" H4 lens a try.

http://store.candlepower.com/ca631quheleu.html

Mounting to the OEM ring requires some modification to one of the lens mounting points, but if you have a Dremel and a drill it can be done rather easily. Next time I have the headlight off I will grab some pics. The lens also is barely smaller in diameter than the Stanley, so there is a small gap between the trim ring and the lens. The lens is also flatter in the front compared to the convex shape of the Stanley.







I bought an H4 35W halogen scooter bulb to try out first and while it was slightly better than the Stanley, it was not good enough. Part of my build was to try and reduce the overall draw on the electrical system. The LEDs in the gauges and pilot lamps helped some so I researched some LED headlight bulbs. The main problem is that most of the highly rated H4 LED bulbs have the fan and control board mounted to the rear of the bulb, these will not fit into the tiny bucket of the CB350F. I found two other options, this style with no fan, an external control board and flexible copper fins as heatsinks:

https://www.superbrightleds.com/moreinfo/front-turn-signal-light-bulb/motorcycle-led-headlight-conversion-kit-hb4-9006-led-headlight-bulb-conversion-kit-with-flexible-tinned-copper-braid/2774/6188/

I think this would work and if the option I chose to go with doesn't work out, I will try this one next. What I ended up getting was this:

https://www.amazon.com/gp/product/B01BBWQWFM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1



As you can see the fan and the controller is on the end of the bulb. It puts out about 2800 lumens, uses only 25W on either low or high and most importantly fits in the bucket. I don't have any practical experience with this bulb yet, I can say that in the garage it puts out wayyyy more light the the Stanley. Due to the design of the bulb having LEDs only on the top, it really only uses the top half of the reflector and high beam is probably going to be too high regardless of adjustment. Low beam looks to be great though. I will update as I get to actually use it on the road.

I also put an LED into the tail light. Pretty sure it was this one:
https://www.superbrightleds.com/moreinfo/tail-brake-turn/1157-led-bulb-dual-function-27-smd-led-tower-bay15d-retrofit/2625/
« Last Edit: December 28, 2016, 11:42:56 AM by Dnor72 »

Offline kap384@telus.net

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Re: 1973 CB350F - First full resto
« Reply #46 on: December 28, 2016, 11:37:54 AM »
Just read the entire thread.  Great job!  Got me motivated to get moving on my CB400F but truthfully its got a few projects in front of it.
1965 Honda CB450K0
1972 Honda CT70K1
1975 Honda MR50
1975 Honda CB400F Supersport
1977 Honda CB750F2 Supersport
1978 Honda XL100
1979 Honda CBX Supersport
1982 Honda VF750S Sabre - Adventure Bike modified
1983 Honda CX650T
1995 Honda VFR750
2016 Honda CRF1000L Africa Twin
2015 KTM 200 XC-W
1963 Suzuki T10
My 1977 CB750F restoration - http://forums.sohc4.net/index.php?topic=66779.0
My 1975 CB400F restoration -
http://forums.sohc4.net/index.php?topic=145196.msg1651779#msg1651779
'More Stock Than Not' thread - http://forums.sohc4.net/index.php?topic=90807.500
My CT70 Resurrection - http://forums.sohc4.net/index.php?topic=145221.0
Best Motorcycle Tool Ever - https://www.engduro.com

Offline Dnor72

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Re: 1973 CB350F - First full resto
« Reply #47 on: December 28, 2016, 11:46:06 AM »
Just read the entire thread.  Great job!  Got me motivated to get moving on my CB400F but truthfully its got a few projects in front of it.

Thanks kap384. Based on all the bikes in your sig it certainly looks like there are a few projects in the que.

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB350F - First full resto
« Reply #48 on: December 28, 2016, 08:40:13 PM »
Looking good!
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 Dnor72

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Re: 1973 CB350F - First full resto
« Reply #49 on: January 06, 2017, 02:05:12 PM »
My old vin plate had been worn through from the tach cable rubbing on it for years. Got a new vin plate from: http://www.khneisser.ch/products/77/detail/HONDA-VIN-PLATE-USA-Version

Looks good and installed pretty easily.




Reproduction seat. I stenciled the HONDA logo on the back with a stencil from eBay and some silver vinyl dye.