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Author Topic: mad mordigans 78 CB750  (Read 7032 times)

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
mad mordigans 78 CB750
« on: Jun 19, 2014, 00:26:28 »
Well, I'm technically halfway through my build and my bike is in pieces but I guess now is a better time to start a build thread than never. She's a 78 cb750. My first vintage bike although not the first bike I've had. Actually probably the 4th one that's been in my stable. So anyways here's what I started with and basically where I'm at now with this ground up restoration. When I got her she looked decent, was missing some parts here and there but was actually rideable although ran like crap but only because she was needing to be rejetted for the pods. Got her running pretty decent after rejet and then took her completely apart.

Edit: the bike has changed a few times during its build, here is the latest installment of the series so you donít have to sift through all the posts...




And back to the build in chronological order....
« Last Edit: Sep 29, 2018, 11:31:56 by mAd mOrdigan »

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #1 on: Jun 19, 2014, 00:43:50 »
so she's still in pieces but she's all powdercoated up except the engine. Which I'm going to paint but the old grease and oil is so caked on it's discouraging!! there's a few parts that need to be polished but aside from that she just needs to be put back together. Most recently I've been avoiding the engine by lacing the freshly powdercoated wheels and hubs with new spokes from buchanans, they originally sent me rear outer spokes with necks that were too short but other than that my first time lacing was a breeze thanks to a few tips from Kenny from Buchanan. After that I tried truing the front wheel with a makeshift truing stand but idk I decided to bring em to buchanans to get trued. they're back and I'll mount tires tomorrow I think.
« Last Edit: Jun 19, 2014, 00:45:54 by mAd mOrdigan »

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #2 on: Jul 10, 2014, 18:18:08 »
well, i got my wheels back and finally mounted up some tires, i'll be balancing then in a lil bit here. I just got done painting the engine. This entire project has been a thorn in my ass, only because its taking so long. Long story short i the engine in the bare frame first before i start putting everything back together. I don't want to take the entire thing apart at this point in time, so i cleaned (if you can call it that) the engine with kerosene, simple green, dish soap and who knows what else. sanded scuffed as best i could... lets face it getting in between the fins is a bear of a  job, lets just say, this paint job isn't meant to last a lifetime... But i sprayed it and if it lasts me 4-5 months, i'll be happy. actually if it makes it through the end of putting the entire bike back together i'll be happy. Not as textured as i thought it would be but oh well.
« Last Edit: Jul 10, 2014, 18:23:13 by mAd mOrdigan »

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #3 on: Jul 13, 2014, 02:59:41 »
got the engine in the frame, we did the lay the engine on it's side technique then slipped the frame over it. I wrapped the frame with silicone hose from homedepot to prevent scratches on the new powdercoat
« Last Edit: Jul 13, 2014, 03:02:16 by mAd mOrdigan »

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #4 on: Jul 15, 2014, 21:53:09 »
did some polishing today... I went at the lil nooks and crannies with a wire wheel.. bad idea as there are obvious scratches that never got sanded away but oh well, it still looks better than before

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #5 on: Jul 16, 2014, 02:42:07 »
I started the other fork tonight, started with the lil nooks using a wire wheel and then went at em with 150grit. I'm still seeing some scratches but hopefully not as bad. I wonder if I need to go at them with 60 or 80grit THEN work up from there or if 150 is fine and I'm just not getting deep enough into those lil spaces by hand.

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #6 on: Jul 18, 2014, 23:18:46 »
well my original steering head bearings were ok so I decided to reuse them, for the life of my I couldn't figure out why but the steering stem/bottom triple clamp wouldn't go up enough into the neck so that I could put the top nut on! so fuck it, I ordered an all balls bearing set. hopefully it just works coz I don't want to have to figure anything else out right now. This bike is beginning to nickel and dime the crap out of me!

Offline HolyRoller

  • Posts: 327
Re: mad mordigans 78 CB750
« Reply #7 on: Jul 19, 2014, 02:19:25 »
Is the frame a roller yet? If so, can you fire us a picture? I always enjoy pics of when the pieces begin to roll! Nice rims by the way.

And I hear you with the nickel and dime comment... this hobby (one that I love!) is NOT cheap. I hate tearing into perfectly good bikes, and am always looking for barn bikes so I don`t feel guilty... but these bikes will almost always be more expensive to bring back to life!

Looking good so far.... is this a resto project or just sort of heading for sort of original-ish?
'84 GS750ef "No More Blues" Rest-Mod http://www.dotheton.com/forum/index.php?topic=65519.0

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #8 on: Jul 19, 2014, 13:42:00 »
Is the frame a roller yet? If so, can you fire us a picture? I always enjoy pics of when the pieces begin to roll! Nice rims by the way.

And I hear you with the nickel and dime comment... this hobby (one that I love!) is NOT cheap. I hate tearing into perfectly good bikes, and am always looking for barn bikes so I don`t feel guilty... but these bikes will almost always be more expensive to bring back to life!

Looking good so far.... is this a resto project or just sort of heading for sort of original-ish?

thanks, she's not a roller yet, I was hoping to get it going yesterday but this steering head jacked it all up. I should have pics of her standing on her own in the next week or two at the latest depending on how long allballs takes to ship their tapered bearings

Offline mAd mOrdigan

  • Posts: 237
    • my build thread
Re: mad mordigans 78 CB750
« Reply #9 on: Jul 29, 2014, 19:20:24 »
well she's a roller.. I sat there for an hour or two fiddling with petty crap coz I just didn't know what to start working on. in the end I got nothing done.