Author Topic: 1975 CB400F  (Read 16412 times)

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Offline przjohn

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Re: 1975 CB400F
« Reply #50 on: February 12, 2015, 05:27:25 AM »
Chrome is done and just received a call from the machine shop that the head and cylinders are ready. This weekend will be spent working on the garage but after that it's time to get this thing back together.

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Offline Kevin

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Re: 1975 CB400F
« Reply #51 on: February 12, 2015, 05:32:55 AM »
Wow, looks beautiful!
If you don't mind me asking, what does your chrome shop charge? Is there a minimum? And what all did you have chromed? Triple chrome ( nickel, copper, chrome)?
A couple of 400F's and a
'98 Suzuki Intruder VS1400 ~ for long rides

Offline przjohn

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Re: 1975 CB400F
« Reply #52 on: February 12, 2015, 07:12:49 AM »
Wow, looks beautiful!
If you don't mind me asking, what does your chrome shop charge? Is there a minimum? And what all did you have chromed? Triple chrome ( nickel, copper, chrome)?

I use Paul's Chrome in PA. This batch with shipping both ways was about $600, not cheap. That's why I like to buy repro if it's available as it is more times than not cheaper than a re-chrome. Last year he did a chain guard for me from a 72 Kawasaki H1B for $150 so that was a little easier to take. They will give you an estimate before you ship and if it is more when they get the parts they will ship back to you free. I don't know the process but they advertise that they only do, "Show Chrome" finishes and their work is very high quality. I like them because they are very professional and do what they say they will do and when. I had a good local guy but he stopped doing bike and car stuff to concentrate on only commercial stuff. Then had another local guy that was a PITA to deal with and never got anything done when he said he would.
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Offline przjohn

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Re: 1975 CB400F
« Reply #53 on: February 21, 2015, 07:12:46 AM »
Got an early start on the weekend this afternoon and started back on the Honda. First up was the ground and drilled disc by Truedisc. Noblehops had his done and I liked it. It is not "Period Correct" with the drilling, but I love the look. Did it on the Norton and loved it too. I don't know, but it just seems to add to the appearance of the bike, and the brake should be much better too.

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Offline przjohn

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Re: 1975 CB400F
« Reply #54 on: February 21, 2015, 07:14:04 AM »
Then it was time to start getting this motor together! Started following the, ( who the hell wrote this thing?) Haynes Manual and did like I've done many times on other bikes while assembling the transmission, aligning the pins and clips with the bearings. I have always considered the pins to locate the tranny bearings in cases pressed in and have never worried about them. Well, then the light bulb went off and I realized that I had lost them somehow. After a few F---, F---- F--- s I tried to figure where they could be? Sheet, they could be anywhere between my work bench, the Wife's GE Profile Double Oven and the back seat of my truck?

Here is where one of them lived,

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Offline przjohn

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Re: 1975 CB400F
« Reply #55 on: February 21, 2015, 07:16:03 AM »
So, in the Blind Pig finds an Acorn department comes this post. The first place I looked was the parts washer. I had just changed the fluid after years to a new clear liquid and, voila,  :) these two little bastids were just laying there in plain view.



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Offline przjohn

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Re: 1975 CB400F
« Reply #56 on: February 21, 2015, 07:17:28 AM »
We are now ready to assemble the engine. Cases are just about ready to mate. This motor gets first over OEM Honda pistons and rings in the jug and new valves, seals, decking, seats, and exhaust studs in the head, both were bead blasted to a nice finish. I had bought new guides but the machine shop called me and said it was a waste of money as the ones in there were perfectly good and well within spec. They will get put into the ever increasing NOS stock. When I die the Wife won't have a clue what she has so one of you guys offer her a couple hundred bucks for it, I want to give something back.



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Offline Kevin

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Re: 1975 CB400F
« Reply #57 on: February 21, 2015, 07:47:41 AM »
Looking Good!
Glad you found your pins. It would really suck if you had to wait for replacements.
Keep the pictures coming, I'm jonesing to get started on my rebuild and am living vicariously through yours for now.
A couple of 400F's and a
'98 Suzuki Intruder VS1400 ~ for long rides

Offline przjohn

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Re: 1975 CB400F
« Reply #58 on: February 21, 2015, 04:02:53 PM »
Don't look like much but it took me the good part of the day to get to this point. The primary drive gave me a bit of a hard time, and as a 2 stroke guy this multi cylinder oil ring thing took a bit. Can only put in a half day tomorrow because there is a Daytona 500 party that we are going to. Hoping to have the motor ready to go in to the frame. Some pics,




Also got the motor mount bolts plated.


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Offline Trad

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Re: 1975 CB400F
« Reply #59 on: February 21, 2015, 06:18:02 PM »
That looks beautiful man!
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Offline przjohn

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Re: 1975 CB400F
« Reply #60 on: February 23, 2015, 03:54:43 PM »
The motor, well most of it, is in the frame and the air/battery box installed.



The clutch cover that needed a couple of Helicoils is painted and will be brought home to cure in the oven Thursday when the Wife heads to South Carolina.  ;D

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Offline przjohn

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Re: 1975 CB400F
« Reply #61 on: February 25, 2015, 06:52:18 PM »
Got started on the carbs and they are going to be a task. They are completely frozen up, slides, floats you name it. I will try and free them up but they may be FUBAR.



So, after deciding to step back from the carbs to form a plan the meters got finished. They got cleaned, painted, new faces, clock zeroed, and new bulbs, along with new Chrome base plates and foam rubber bases.

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Offline calj737

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Re: 1975 CB400F
« Reply #62 on: February 26, 2015, 05:06:31 AM »
Start soaking those carbs in Berrymans.

Curious, why zero the odometer? Original mileage would have made the bike more valuable unless the gauges are not original to this bike?
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Offline przjohn

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Re: 1975 CB400F
« Reply #63 on: February 26, 2015, 05:29:35 PM »
Start soaking those carbs in Berrymans.

Curious, why zero the odometer? Original mileage would have made the bike more valuable unless the gauges are not original to this bike?

I just do it so it shows time since restore. Have done a few bikes with NOS Speedos too.
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Offline przjohn

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Re: 1975 CB400F
« Reply #64 on: February 27, 2015, 04:15:07 PM »
Made good progress on the carbs today. Either the gas was left on, or the petcock leaked by on these carbs for years dragging the varnish from the tank into the carbs. Most bikes have bad gas in the tank but the carbs are just brown dust because the gas was off.

I decided to see if the Pine Sol deal was as good as Carb Cleaner. Here is a pic of both carbs before they were soaked for 24 hrs. in each.



Here are the carbs after. The Pine Sol carb did not fair as well as the Carb Cleaner carb despite being even a little cleaner to start. The Carb Cleaner carb had almost all varnish gone from the bowl, the Pine Sol still had a lot left in there. The Pine Sol did a decent job but the Carb Cleaner definitely did better. I took it even further and heated the Pine Sol. That helped get the carb get cleaner but then the neighbor to my shop came complaining of the smell.  ::) Price wise the Pine Sol is about the same as Carb Cleaner. The 1 Gallon Napa Can was a little less than $20.00. 4 20 oz bottles of Pine Sol were a little less than $12.00, so per gallon they are pretty close.



All the carbs got freed up. both slides and troublesome float stems were able to be removed. They are all now soaking completely disassembled in Carb Cleaner overnight. A big step today was picking up the Paint from fellow CT Rambler Larry Kilgore. This is an Acura paint color and came out just the way I wanted it. Thanks very much Larry, great work as always.






And hey, when you get a tank back from paint it is almost criminal not to set it on the frame to see how it looks.




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Offline Stev-o

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Re: 1975 CB400F
« Reply #65 on: February 27, 2015, 06:11:21 PM »
Hey John.....don't know how I missed this thread. Great job so far, nothin like a red a Honda.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline przjohn

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Re: 1975 CB400F
« Reply #66 on: March 02, 2015, 09:46:21 AM »
Wearing my Walter White work glasses I went to the hardware store Saturday on my way to the workshop to pick up a few items that would be needed for working on the bike over the weekend. The guy asked me if I needed a timer with that.



All weekend and not much to show for it. These carbs took me a LONG time to get cleaned and 95% refurbished. Just didn't feel good about the condition of the floats and ordered new ones. The bowls still need to be assembled onto to the carbs when they come in. The Choke linkages got plated and the Throttle mechanisms got Yellow Chromate. Something has to be coming down the pike with this bike, I was just too lucky finding jumping clips, screws, and thing a ma jig parts that were flying off wire wheels, falling into blast media, and just plain looking for a place to hide while working on these carbs.





Another hold up is a screw up on my part. I snapped the operating lever of carbs 1 & 2 when taking it off the shaft. Got a complete plate assembly off Ebay and will have to wait for that to assemble the carbs on the plate. A $50.00 screw up.




If you have "Experienced" Eyes like I do these babies are just the ticket for working on carbs, speedos, tachs, jet sizes, and anything smaller than your thumb.



Had to at least put something on the bike this weekend so the stands went on. New springs with plated bolts, drain guides, and center stand shaft.





Tonight all the carb parts arrived so it's back to the motor tomorrow.
« Last Edit: March 03, 2015, 04:32:53 PM by przjohn »
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Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB400F
« Reply #67 on: March 02, 2015, 10:55:14 AM »
Really nice job on the carburetors.  The paint looks pretty fantastic, too.
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Offline przjohn

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Re: 1975 CB400F
« Reply #68 on: March 03, 2015, 04:28:16 PM »
While waiting on the carb parts started in on some other stuff. Front brake is installed.



Man did this pivot joint cause me some headaches. Like a Moron I painted the caliper holder before checking it out. Well the pivot was frozen and needed serious heat that even VHT could not come close to handling. Ended up doing a fine bead blast instead of repaint and the part looks great. Oh, and the reproduction fender that is a PITA to mount had to come off, TWICE, because after I bolted everything up, the caliper mount was upside down.  C,mon now, how many parts have you guys put on backwards or upside down without beer?



Got started on the front end controls and wiring too. She is starting to look more like a bike now.





Luckily electrical is my strong suit. After seeing that a PO had electrical problems by the havazz wiring labels, orange wire nuts, and the switch in the headlight? I got a new harness.



This,



Is suppose to be this.


I don't know why the reproduction headlight shell has this hole in it, maybe a European thing? My plan is to plug it with a plastic plug from the hardware store.







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Offline przjohn

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Re: 1975 CB400F
« Reply #69 on: March 05, 2015, 04:43:19 PM »
Well, these Bastids are finally in and hooked up. I am embarrassed at how long these carbs took me, I got schooled well on this carb set up.





Clutch cover, cable, and lever installed. Clutch is adjusted and grips are in place. Want to talk anal? Well, maybe that didn't come out quite right  ;D Check out the cable guide that was plated. Will anyone see it? Probably not for years anyway.





Here is the other side of that cable guide and horn mount. I have no idea what this bracket does. I know part of it holds a band to secure the wiring harness but don't know what the rest of it is for. The parts book calls it a "Stay Speed Unit"? I redid it in Yellow Chromate anyway.




Also got the rear brake done. One of the best things God gave man was disk brakes. I have yet to do a bike where this part of the job wasn't a PITA.



And speaking of PITA stuff. These things are tough, until you learn how. I tried lube, hot water, and finally figured out that it was procedure. You need to do the lube and hot water but you also need to start them close to the lever and not just trying to go straight around the globe part. That doesn't explain it very well, I know.




Prep work also got done. The signature part of this bike IMO is the exhaust, it makes the bike. The flanges were pretty rusted up and got plated today. This will ready the next step, install of the NOS exhaust. I actually have to do some paying work tomorrow so that will have to wait till this weekend.




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Offline przjohn

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Re: 1975 CB400F
« Reply #70 on: March 07, 2015, 04:21:44 PM »
So, another big step today as the exhaust got mounted. The NOS exhaust came without the #1 and #3 pipe clamps and I got the reproduction ones, lets just say they were a biatch to get on. Installing this exhaust would probably be a lot easier with another set of hands. But, it is on and makes the bike. IMO the 400F exhaust helps make it arguably the best looking bike of the SOHC era. Some pics,





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Offline przjohn

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Re: 1975 CB400F
« Reply #71 on: March 07, 2015, 04:23:45 PM »
Also got some good progress on the electrical. Everything is mounted and wired mid section back. Tomorrow will see the front end getting wired up. More pics,







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Offline przjohn

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Re: 1975 CB400F
« Reply #72 on: March 07, 2015, 04:25:00 PM »
I'm a big fan of the Lithium Batteries, in particular the Antigravity brand, MADE IN THE USA. I bought a solid state rectifier/regulator combo thinking it would be a good upgrade for a Lithium Batteyr as they don't take well to over charging. Here is a pic of the modern unit.



And then I read the instructions. AG will not warrant a battery if charged above 14.6 volts.



So, the original rectifier and regulator will stay. I am hoping somebody has used the modern one piece unit with Lithium batteries and it can be put on. For now she goes old school.
« Last Edit: March 07, 2015, 04:43:42 PM by przjohn »
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Offline przjohn

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Re: 1975 CB400F
« Reply #73 on: March 14, 2015, 05:30:11 PM »
Big day today. One of the few changes from stock that this bike got was the electronic ignition. Here is one of the Dynatek mini coils mounted. A small bracket had to be fabricated and no one will see these coils or their electronic counterpart hiding beneath the right side cover, but, these bad boys kick some serious spark out and it is set it and forget it. When you have a bunch of old bikes that is a nice feature.

'


Ready for take off. If you've done a build or resto you know the feeling. Did I do this, what about that, etc? Screw it, hit the button. She fired right up and was running pretty steady considering the carbs were no where close. Then the heart attack moment, the oil light would not go out.




I cracked the oil filter cover and oil came leaking out so that meant oil was pumping. All kinds of thoughts were racing though my mind including pushing the bike to a far corner to deal with next year, closing the door behind me, and heading to the bar :beer: But, there was one check that had to be made. I removed the reproduction oil pressure sending switch and put the old one on. The new switch had a .25 rating number and the old one had a .3 rating number so I am assuming in some type of metric lingo the .3 is a higher pressure? Anyway, the light went out and it looks like the new switch was bad, Ebay, go figure right?




So, the bike is completely tuned with sycnched carbs and cam chain adjusted. It starts instantly and sounds great. It still needs road testing but the weather here prohibits that. The seat got done today too, one of the tips that came with the seat was to use Saran Wrap to make recovering easier. I don't know but it seemed the same to me, try it and see if it works for you any differently. The original seat had the base pan rotted out and the foam had too much memory for a new cover. I bought a new seat but that didn't have the Honda emblem so a new cover with the emblem was put on a new seat. If I had paid that much attention to my ex wife I might have some decent coin left, nah, on second hand, worth every dime. You know what they say about divorce. The only reason it is expensive is because it is worth it :twothumbs: :D




And that leaves us here, close to finish. Still need to do some minor mods like adjust the seat, install decals, and go over everything. The plan is to register the bike this week and maybe get some road testing in. I won't ride it in the garbage melting snow crap we have now so that may get put off a week. I'll post some final pics and details after that.







I like poetry, long walks on the beach, and poking at dead things with a stick.

Offline Restoration Fan

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Re: 1975 CB400F
« Reply #74 on: March 14, 2015, 05:51:20 PM »
HO-LY  SMOKES!

That is one gorgeous bike.  I will agree with you that, at the very least, the exhaust on that bike is probably the sexiest of all the SOHC bikes.  Always loved the smooth curves of the headers into that one shiny exhaust.

Man, your attention to detail and skill are unbelievable.  Very envious.  Oh yeah, did I mention I'm very envious?
Ron

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