Author Topic: My first protect, Honda CB750G revival.  (Read 7558 times)

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Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #50 on: March 29, 2020, 12:10:32 PM »
Thank you for the info, to be fare i didn't really pay much attention to it. The main reason for the resto taking on a life of its own is because of an incident that happened whilst the engine was being painted. The guy doing the painting decided to sandblast the engine filling it with sand in the process, felt devastated at the time but because that happened the bike has ended up getting the attention it deserved. New wiring loom and full electronic ignition system from 4into1 this month.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #51 on: March 30, 2020, 12:31:48 PM »
Throughout the resto I’ve taken a bunch of photos cataloguing what I’ve done. I’ve included some below for info.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Stev-o

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Re: My first protect, Honda CB750G revival.
« Reply #52 on: March 30, 2020, 03:36:23 PM »
...what started out as a small project to keep busy has turned into a labour of love and is now taking up all of my spare cash.

Welcome to the club!  It is very easy to get caught up into this when doing a restoration, can be difficult to know where to draw the line.  Looking real good...
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline SOHC4 Cafe Racer Fan

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Re: My first protect, Honda CB750G revival.
« Reply #53 on: March 30, 2020, 10:16:11 PM »
Looks like you rebuilt the head.  Any porting or other performance work on it?
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #54 on: March 31, 2020, 03:56:43 AM »
I had the head aqua blasted and rebuilt after I was advised to carry out a fuel test on the valves (turning the head upside down and filling the area around the valves with fuel to see if any leaked through). The fuel leaked straight through past the valves. I didn’t have it ported/polished because at the time I didn’t want to be ploughing too much money into it.

Just had another splurge on it though so fingers crossed I’ll be able to make some decent progress over the next three weeks.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #55 on: March 31, 2020, 10:12:09 AM »
Another few hours at it today. Took the rear master cylinder to bits (had to use a grease gun as it was seized solid) in readiness for next months brakes overhaul.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #56 on: April 01, 2020, 11:53:12 AM »
A few more jobs chalked off today including continuing the rear master cylinder refurb.
« Last Edit: April 01, 2020, 11:56:13 AM by Willh1983uk »
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #57 on: April 04, 2020, 11:49:37 AM »
Starting to come together now. Had a bit of difficulty with the choke not operating correctly, turned out the choke plate on #4 carb was fouling on the body and making it stiff to operate. Fitted a few bits including the air filters (which at first were binding on the choke mechanism stopping it from operating), ignition switch and started fitting some of the electrical components (after testing). Best of all my lad came out to the garage for a few hours to help out.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #58 on: April 16, 2020, 12:02:20 PM »
Evening team, if possibles I would like some help identifying the type of exhaust I have for the CB, the only details on it are the name (Yoshimura) and D7H as pictured. I have contacted Yoshimura in the states and they have unfortunately been unable to help me. Please see the photos below for details.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #59 on: April 16, 2020, 12:03:50 PM »
Made a little more progress with the addiction of the fuses, indicator relay and an electronic regulator.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!

Offline Stev-o

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Re: My first protect, Honda CB750G revival.
« Reply #60 on: April 16, 2020, 12:45:17 PM »
Evening team, if possibles I would like some help identifying the type of exhaust I have for the CB, the only details on it are the name (Yoshimura) and D7H as pictured.

Going out on a limb here, but I'd say that exhaust is made in Japan by Yoshimura! 
And thats a good thing, they are a well respected company. 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Willh1983uk

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Re: My first protect, Honda CB750G revival.
« Reply #61 on: April 16, 2020, 12:51:08 PM »
Happy days, thank you. The Cyclone 4into1 with an S type muffler is the closest thing I’ve found that looks like the same.
2005 Sprint ST 1050
1977 Honda CB750 f2 mixy blob
41 Months to go!