Author Topic: 1977/1978 CB's are cool 2!  (Read 78021 times)

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Offline seanbarney41

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Re: 1977/1978 CB's are cool 2!
« Reply #300 on: June 13, 2014, 09:59:03 PM »
don't think I got my f3 in here yet...


Looks F'n great, SB.
looks can be decieving...I am not used to my Honda's breaking down every other week...I will get it sorted though
If it works good, it looks good...

Offline Prez1967

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Re: 1977/1978 CB's are cool 2!
« Reply #301 on: June 14, 2014, 03:18:56 AM »
Im really starting to dig the F's wheels and seat/tank combo! Would all those oarts be bolt ons for a K bike??

Offline AintNoEasyWay

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Re: 1977/1978 CB's are cool 2!
« Reply #302 on: June 14, 2014, 04:53:18 AM »
Stopping in to say 'hello' to everybody. Should be great riding weather in Tennessee today.

Offline 70CB750

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Re: 1977/1978 CB's are cool 2!
« Reply #303 on: June 14, 2014, 05:07:10 AM »
Im really starting to dig the F's wheels and seat/tank combo! Would all those oarts be bolt ons for a K bike??

I can attest for wheels, I will be using them in my K3F - see my signature. The rear wheel needs F swingarm to accomodate the brake disc and extended rear shock mount on the left.

The front you could go with the whole fork and get dual brake setup, it bolts right in K triple tree.

You could even find F wheels for tubeless tires, from like 1980 DOHC or so. I know I will go tubeless once the K3F is on the road.
« Last Edit: June 14, 2014, 05:09:19 AM by 70CB750 »
Prokop
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Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline seanbarney41

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Re: 1977/1978 CB's are cool 2!
« Reply #304 on: June 14, 2014, 05:12:55 AM »
Im really starting to dig the F's wheels and seat/tank combo! Would all those oarts be bolt ons for a K bike??
what year k bike? wheels will not "bolt on" to a k bike but the entire front fork assembly will.  Same in the back, easiest way is to use the whole swingarm although I think there are some mods that have to be done?.  Tank fits all years.  Seat will not fit 69-76 k's without custom work.  I don't know about f seat fitment on 77-78 k bikes.  70CB750 has the details and has posted while I was typing.
If it works good, it looks good...

Offline lucky

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Re: 1977/1978 CB's are cool 2!
« Reply #305 on: June 14, 2014, 09:20:30 AM »
"Black Sheep"?????!!!!! Are you kidding?

The 77-78 CB750 had the most improvements of all of the Honda CB750 SOHC'sw.
I am not going to list them all .
21 changes in all.

Some of the changes:
Bigger valves.
Redesigned clutch.
More cooling fins on the engine.
Wider cam chain galley.
Better cam chain.
Better oil drain down system.
More cooling fins on the oil filter housing.
Higher 4th and 5th gear.


The only thing I did not like is the carbs. The EPA ruined those.
I am not against  a cleaner environment but the way they forced the changes it was a mess.

The 1969-70 CB750 carbs are still the best of all of the carbs.
That is WHY the price for them is very high.

The float bowls removed with a simple clip. No Screws.
You could remove all of the slides while the carbs were on the motorcycle.
No lifter arms or lifter shafts. Huge weight difference.
The idle screws had marks indicating when they were fully closed.
All jets could be removed while the carbs were on the bike.
All mixture screws were easily accessible.
The float bowl drain screws were aluminum as were the vacuum port screws,so corrosion potential was reduced.
One throttle cable.
They produced the most power.

!977-78 Engine-1969 carbs Killer set up!





« Last Edit: June 14, 2014, 09:26:18 AM by lucky »

Offline strynboen

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Re: 1977/1978 CB's are cool 2!
« Reply #306 on: June 14, 2014, 11:18:22 AM »
the black engines eats valve guides...they are just  to hot..in cam degreds...all now this...or is it a myth
i kan not speak english/but trying!!
http://forums.sohc4.net/index.php?topic=60973.0
http://forums.sohc4.net/index.php?topic=144758.0
i hate all this v-w.... vords

Offline lucky

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Re: 1977/1978 CB's are cool 2!
« Reply #307 on: June 14, 2014, 02:21:06 PM »
the black engines eats valve guides...they are just  to hot..in cam degreds...all now this...or is it a myth

It was the valve stem keepers that caused the problem.
Cycle-X has a solution.

Offline flybox1

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Re: 1977/1978 CB's are cool 2!
« Reply #308 on: June 15, 2014, 03:41:09 PM »
the black engines eats valve guides...they are just  to hot..in cam degreds...all now this...or is it a myth

It was the valve stem keepers that caused the problem.
Cycle-X has a solution.

It's all right here..
http://forums.sohc4.net/index.php?topic=10540.0
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

fendersrule

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Re: 1977/1978 CB's are cool 2!
« Reply #309 on: June 15, 2014, 03:48:47 PM »
My 78' won third place today at a VJMC rally. Heed that non-believers!

Offline Stoli

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Re: 1977/1978 CB's are cool 2!
« Reply #310 on: September 20, 2014, 08:16:10 PM »
New entry for the  8) club. Not sure if it qualifies but it has a '77 tank and headers and shocks from a K8. Everything else is from earlier years. Used what I had.



My Project Threads:
Project #1 - http://forums.sohc4.net/index.php?topic=117106.0  First bike
Project #2 - http://forums.sohc4.net/index.php?topic=127364.0  Something different
Project #3 - http://forums.sohc4.net/index.php?topic=123831.0  Long and Low

Offline Mr Freeze

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Re: 1977/1978 CB's are cool 2!
« Reply #311 on: September 21, 2014, 06:14:38 AM »
My ride. All 1978. Supersport gas tank and front end, K motor and frame. Custom seat, headlight setup, wiring. etc.






Offline dlhoulton

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Re: 1977/1978 CB's are cool 2!
« Reply #312 on: September 21, 2014, 06:43:04 AM »
My recently completed resto/mod 1977 CB750F. Love the F's.


Offline BPellerine

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Re: 1977/1978 CB's are cool 2!
« Reply #313 on: September 21, 2014, 04:40:57 PM »

I guess if everyone is doing it ,here is my 78k.bill
1978 CB 750K ard and webers
another anfob

Offline Stev-o

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Re: 1977/1978 CB's are cool 2!
« Reply #314 on: September 21, 2014, 05:09:19 PM »



'77 CB550F
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Juan1

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Re: 1977/1978 CB's are cool 2!
« Reply #315 on: April 17, 2015, 10:35:49 PM »
Here's mine.  The headlight and gauges were not restored and the tank could use a bit of work, but she rides well because of the info on this forum.

Offline PeWe

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Re: 1977/1978 CB's are cool 2!
« Reply #316 on: April 18, 2015, 12:19:03 AM »
I might regret in the future but K7, F1 and F2 can be found in very good shape here for not that much money.
It is something very special with K0-K6 that cost double, especially K0 that cost 3x.  Original 4-4 for the K7 cost about 1/4 of the K0-K6 (HM300/341)
I have seen very nice F2's with small modifications.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline SOHC4 Cafe Racer Fan

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Re: 1977/1978 CB's are cool 2!
« Reply #317 on: April 18, 2015, 07:30:12 AM »
Here's mine.  The headlight and gauges were not restored and the tank could use a bit of work, but she rides well because of the info on this forum.

Nice job putting that bike back on the road, Juan.
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 flybox1

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Re: 1977/1978 CB's are cool 2!
« Reply #318 on: April 18, 2015, 07:41:22 AM »
Here's mine.  The headlight and gauges were not restored and the tank could use a bit of work, but she rides well because of the info on this forum.
nicely done, Juan  8)
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline 70CB750

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Re: 1977/1978 CB's are cool 2!
« Reply #319 on: April 18, 2015, 08:51:23 AM »
Here's mine.  The headlight and gauges were not restored and the tank could use a bit of work, but she rides well because of the info on this forum.

Great job! Reliable bike is always pretty.
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline CB750R

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Re: 1977/1978 CB's are cool 2!
« Reply #320 on: April 19, 2015, 08:55:02 AM »
My recently completed resto/mod 1977 CB750F. Love the F's.



Wow, hats off to an amazingly clean F2! That thing is beautiful.

Offline atm cycles

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Re: 1977/1978 CB's are cool 2!
« Reply #321 on: April 19, 2015, 09:11:39 AM »
I've had several k and f stock and not. This one was my favorite

Offline atm cycles

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Re: 1977/1978 CB's are cool 2!
« Reply #322 on: April 19, 2015, 09:19:55 AM »
Love f tanks

Offline toytuff

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Re: 1977/1978 CB's are cool 2!
« Reply #323 on: April 20, 2015, 11:24:07 AM »
The thread is still alive!

 8)

tt

Offline mkoski

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Re: 1977/1978 CB's are cool 2!
« Reply #324 on: April 20, 2015, 12:47:40 PM »