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Author Topic: 1970's CB550 custom - Lazarus  (Read 1981 times)

Offline dwysywd

  • Posts: 77
1970's CB550 custom - Lazarus
« Reply #50 on: Mar 12, 2019, 22:30:47 »
My buddy helped me weld up my aluminum end where the starter motor went through. He punched a 7/8 plug from 1/8 alum plate and then tig welded it in place. There is a rubber o-ring that goes on the end where it inserts into the case. I removed it to be sure it didnt melt when Rob was welding it. And it would have. That sucker got hot.

This was a major PITA to disassemble. I had to heat up each screw with the torch for about 2 min before I could get it to break free. I had to use vice grip pliers to free them.

The long screws are 4.5 long or 110mm and they are a M5x.80 so I need to replace them cause phillips heads suck and I bent the old ones trying to get them out. Replacement studs will be hex head.

The guts of the starter Came out really easily. Pretty much shook the parts inside out. Had to use pliers to pull few pieces out. Next I plan to drill out the cable portion coming through the case. Im thinking Im going to use this to hide electronics in it.






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« Last Edit: Mar 13, 2019, 07:42:22 by dwysywd »

Offline pidjones

  • Posts: 738
Re: 1970's CB550 custom - Lazarus
« Reply #51 on: Mar 14, 2019, 08:11:12 »
They aren't Phillips head screws, they are JIS screws. Get a couple JIS screwdrivers or bits (I use Motion Pro 1/4" hex drive bits). You may still want to replace the screws, but with the correct drive bit you'll suffer less getting the old screws out.
"Love 'em all.... Let God sort 'em out!"

Offline dwysywd

  • Posts: 77
Re: 1970's CB550 custom - Lazarus
« Reply #52 on: Mar 14, 2019, 11:23:50 »
They aren't Phillips head screws, they are JIS screws. Get a couple JIS screwdrivers or bits (I use Motion Pro 1/4" hex drive bits). You may still want to replace the screws, but with the correct drive bit you'll suffer less getting the old screws out.
Wow. Thats awesome. I had no idea. Thanks! I still may replace. But knowing there is a specific tool does make a difference.


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Online jordandogtown

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Re: 1970's CB550 custom - Lazarus
« Reply #53 on: Mar 14, 2019, 12:04:00 »
I did not know that. I just always called them "those Phillips bits" and "those other Phillips bits". I looked up a comparison and it makes sense why the JIS bits work so much better
"A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils, and lunatics" George Fitch, 1916

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Re: 1970's CB550 custom - Lazarus
« Reply #54 on: Mar 14, 2019, 12:11:17 »
The common JIS #2 screws also have a dimple on the head. A set of JIS screwdrivers was one of the most valuable tool purchases I've made since working on VJMs




Offline CrabsAndCylinders

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Re: 1970's CB550 custom - Lazarus
« Reply #55 on: Mar 14, 2019, 16:02:17 »
I've read that Philips screws are designed so that the screw driver will strip the head before the threads will strip.  This is why they are so annoyingly easy to strip.
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Offline scott s

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Re: 1970's CB550 custom - Lazarus
« Reply #56 on: Mar 14, 2019, 16:22:52 »
 Can you go over what it took to fit the front end and wheel? What size are the NT650 forks?
 You said fender ordered; what did you get? Doesn't the NT use a smaller front wheel?

Offline dwysywd

  • Posts: 77
Re: 1970's CB550 custom - Lazarus
« Reply #57 on: Mar 14, 2019, 23:40:15 »
Can you go over what it took to fit the front end and wheel? What size are the NT650 forks?
 You said fender ordered; what did you get? Doesn't the NT use a smaller front wheel?

Ok. I did this 15 years ago, so Im going off memory here. But I took the NT650 front end and purchased a new bearing race set that matched my neck ID and the NT post OD. I dont remember the sizes, sorry.

Then I took my old hub, I relaced, then put new bearings in it to fit the front NT650 axle. The rear was factory axle and hub but it got new bearings too.

Fender was for the rear. My original was all corroded. So I never got around to ordering or replacing the rear to now. I just ordered a shortened factory replacement. Follow the link above to see it. I will post pics when I get it. Im not sure but think I am going flat black. Its chrome right now.

When I did this conversion, not many people were fitting new tech to old tech. I was just looking for something different.


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Offline scott s

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Re: 1970's CB550 custom - Lazarus
« Reply #58 on: Mar 15, 2019, 07:44:11 »
 So, with a bearing swap the NT stem/triples fit the 550 neck?
 And same with the 550 wheel? What about spacers for the front wheel?

Offline dwysywd

  • Posts: 77
Re: 1970's CB550 custom - Lazarus
« Reply #59 on: Mar 15, 2019, 08:25:19 »
So, with a bearing swap the NT stem/triples fit the 550 neck?
 And same with the 550 wheel? What about spacers for the front wheel?
Let me take a picture today but Im pretty sure I just used a stainless steel spacer. I want to say it was pretty close. As for the stem, yes it all fit with new bearings.


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