Author Topic: 1976 Honda CB 750 - the distorted project  (Read 3006 times)

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Offline distortedolskool

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1976 Honda CB 750 - the distorted project
« on: August 10, 2011, 07:31:25 PM »
finally picked up a new project.

Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #1 on: August 10, 2011, 07:33:19 PM »
picked up a project bike last year and have been steadily rebuilding/replacing parts. this is my first go with an older bike rebuild.

purchased in dallas off a hipster moving up north on last minute notice. said he wasn't planning on riding the bike up north once he moved. she sat in an apartment parking lot for the past 3 years, sad but true. he "cafe'd" it out by cutting off all the electrical items only to cause shorts and melt parts of the harness, nice one. nothing like having melting wires with your fuel petcock 2" away!


got home and decided to start eliminating future issues. step one...rewire the kids hack job of the original wiring harness. no pictures but just imagine your typical 35 year old wiring harness and melted electrical tape. she now has a new harness with start button under the seat, headlight, taillight, key switch and alternator charging system. all other crap, i mean safety features, were deleted.

repainted headlight bezel, mounted tach only, key switch.




carpy's exhaust 4-1 to replace for factory rusted out cut pipes.


clubman bars, ss brake line, master cylinder rebuild kit.


carbs. oh how you appear so simple when all together.


and then an explosion of parts!


we will skip the pictures, details and cuss words that go along with rebuilding the carbs (cleaned, new jets, gaskets and floats adjusted). final product....BOOM




new rubber came in the mail so off came the tires. do not underestimate the power of a milk-crate! holds the ass end of a 500# bike up just fine.




decided to start polishing the stator and clutch covers. have never done polishing before but turned out nicely. basically just sand until your fingers bleed and then hit with the buffer for the final stages...presto.


current state of chaos. i am awaiting wheel bearings and new coils this week. install those and bench sync/mount carbs. then should be able to fire and tune the carbs which i am predicting to go like crap. 0 history of tuning carbs. more later this week!!

Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #2 on: August 10, 2011, 07:39:09 PM »
carbs mounted! tomorrow brings fresh oil and hopefully the damn UPS man.









bearings complete. carbs sync'd. new coils, wires and caps. tomorrow adjust the rear and bleed the front brakes.

bike runs much better with the 120 main jets. i have no front brake pressure yet and some very very soft rear brakes since they haven't been readjusted. do some 20 mph cruising and everything seemed well. can't wait to see if the 40mph flat spot is gone.

ngk caps with new honda coils under the tank.


bearings were placed in the freezer and knocked right in. purchased these pushers at harbor freight. worked very nicely and will come in handy again for the head bearings.


carb tune brass tubes installed on the carbs ready for balancing


carb sync device. carbs draw individual vacuum for adjustment.



Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #3 on: August 13, 2011, 09:07:29 AM »
right now i'm going through the top end debating whether or not to split the lower. i didn't have any clutch or transmission issues before so i'm unsure whether or not i should dive in. anyone have suggestions on if it is worth it? this is my first complete motor tear down.

Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #4 on: August 14, 2011, 06:50:24 PM »
made a plaster mold of the tank and then laid up fiberglass. plan is for a smaller tank replica tail instead of the pin tail.

also have items to rebuild and upgrade the front forks this weekend!










little more tail progress and oil tank in fabrication by someone with more welding talent.











new head bearings installed, forks rebuilt with progressive springs, master cylinder rebuilt (again), clipons installed, new cables and polished top.









Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #5 on: August 14, 2011, 06:51:59 PM »
finally finished the tail.












rear plate. yea tags are a little old.


custom oil tank.


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Offline distortedolskool

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Re: 1976 Honda CB 750 - the distorted project
« Reply #6 on: August 14, 2011, 06:54:56 PM »
off with your head!










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