Topic: Nikki's last CB750

[Nikkisixx]

I've been off this forum for a while, for all the usual reasons I'm sure.  While I was gone, I found and restored the ultimate (for me) CB750.  Since I'm getting out of the CB750 rescue and restore game it is time to clean out the attic of all the spares that I'd accumulated.  It seemed rude to just show back up and dump a bunch of crap excellent stuff on the classifieds page, so here is a fast and nasty build thread.  Also, I had forgotten how to post pics and what not    Fingers crossed there is a pic?

[Nikkisixx]

My father in law found a cb750 rotting away in an overgrown yard. He sent me a pic, and the vented/finned side covers got my interest.  My second CB750 was a 1970 K0, purchased for $200 in 1989.  It slipped away from me in the heyday of first real job money when buy a new bike was better than ride the same old CB750.  Other CBs have come and gone since but that K0 was always my favorite.  Chainsaws and trailer got her free from the spot she had sat since the same year I bought my first K0 - 1989.

[Nikkisixx]

Upon teardown I discovered the previous owner had installed late model single pull carbs, an 812 big bore kit, a mild cam, the mag wheels, and Husrt Airheart brakes.  I sold the wheels and brakes right off the bat - it helped fund part of the build. 

[Nikkisixx]

Is reply the best way to post updates?  Doesn't seem like it.

I stripped the engine down, had the cylinders bored for an 836 kit, did a mild port job, 3 angle valve job, new bronze guides, kibblewhite valves, stronger springs, new late model super sport rod bolts, ARP head bolts and nuts, polished and shot peened the beams of the rods, new bearings throughout, back cut the trans gears, decked the cylinders and head to bring compression to 10:1, new primary and cam chains, and an adjustable cam gear.  Just about everything one would need to do to a street motor.

[Nikkisixx]

For suspension I used Koni shocks, and installed bronze bushings in the swing arm.  The front forks are from a '78 cb750, which have longer sliders that allows for a Tarrozi fork brace.  The forks have new springs and emulator valves. 

[Nikkisixx]

I do my own paint work - everything was stripped then painted with epoxy primer, high build urethane, then HOK pagan gold and candy clear.  The black stripes are painted on.  The oil tank initially got a rice paper pic applied under the clear.  I later replaced her with a hand drawn and airbrushed pin-up girl.

[Nikkisixx]

Holy wow those carbs were janked!

[Nikkisixx]

I had a decent front wheel (soon to be available in the classifieds) but no rear so I ordered and Excell shouldered aluminum rim and SS spokes from Buchanan's.  I replaced the wheel bearings and cushes, drilled rotors and drum backing plate, installed a fresh pair of Bridgestone's.  She was a bit mismatched with new in back and stock up front but I was hot to ride and cash was short.  I also used this wicketie wack exhaust complete with custom made collars - just to get on the road!

[Nikkisixx]

For that first season this is how she looked. 

[Nikkisixx]

In her current state the front wheel matches the rear, and the Delkevic stainless exhaust sounds like angels singing.  New badges were a Christmas present one year.  I like these pics, but wish I had taken that stoopid tank bag/purse off first! 

So I found just the right CB750, modified it just the way I wanted, and now I just maintain it and ride it as often as possible.  I've had a dozen or so and this is by far my favorite.  Sorry if I've posted all this before - parenthood and middle age has made me daft. 

[andy750]

Great job on the restoration that is quite the story. Also love the gold colour! Very nice!

[Tews19]

Great work Nikki! I'm in the same boat right now with my K0. How do the gauges function, any flutter? Did you take the frame down to bare metal? You may have mentioned it but I don't recall.

Sent from my SM-G955U using Tapatalk

[RAFster122s]

Pretty bike Nikki!
David

[SOHC4 Cafe Racer Fan]

Your bike has been nominated for the January 2019 Bike of the Month.  To make it eligible for voting, you will need to ACCEPT the nomination in the following thread:  http://forums.sohc4.net/index.php/topic,175140.0.html
Good luck!

Don

[Nikkisixx]

Great work Nikki! I'm in the same boat right now with my K0. How do the gauges function, any flutter? Did you take the frame down to bare metal? You may have mentioned it but I don't recall.

Sent from my SM-G955U using Tapatalk

I had the frame soda blasted, then cleaned up some welds (too much sake on the production line me thinks) and gusseted a couple of corners.  Shot the whole thing with epoxy primer and finished with single stage urethane.  I prefer paint to powder coat.

The gauges got a drop of oil in the cable holes during resto.  At first they did flutter, but after the first season (about 5,000 miles) they settled right in.