Author Topic: Green Hornet CB 550/650 # Some pics of my trip to Scotland with SOHC4 Honda  (Read 80257 times)

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Offline Oette

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Re: "Let's call it The Green Hornet"
« Reply #300 on: November 02, 2013, 02:53:57 pm »
Just a bit ad for my new Cafe Racer Shortfilm, taking place in the Ruhr area in Germany.

Since it is winter now, I managed to produce a short trailer and will start filming for the short film in next spring.

Check out the trailer, comments welcome.

Ruhr Cafe Racer

 :)

Offline lwahples

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Re: "Let's call it The Green Hornet" // Short Film trailer
« Reply #301 on: November 02, 2013, 04:28:08 pm »
Wow,like the music and how you start the vid.Really cool for as short as it is.

Offline 750 Cafe Commuter

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Re: "Let's call it The Green Hornet" // Short Film trailer
« Reply #302 on: November 02, 2013, 05:27:18 pm »
That's a lot of work for a 2 min video!  jk, nice build.  I really dig that speedo/tach--looks a lot better than 2 smaller gauges. 

Offline Syscrush

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Re: "Let's call it The Green Hornet" // Short Film trailer
« Reply #303 on: November 08, 2013, 04:43:13 am »
Very nice, looking forward to more!
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline Oette

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Re: "Let's call it The Green Hornet" // Short Film trailer
« Reply #304 on: August 18, 2014, 08:09:30 am »
After nearly a year of silence I can come along with some mods on the bike.

It now has a CB 550/650 Hybrid Engine with primary chain tensioner, CB 750 K Carbs and a (selfmade) ported head.

Let me show some photos of the build.

First I got a CB 650 engine and had it glassbeadblasted to get rid of all the old dirt and oil.

To have an overview of all the differences between the two engines, I compared the necessary parts. If someone is interested in modding his/her engine, these photos may help to get an idea of the changing dimensions (as also stated in paulages engine-mod report).

Bore-size is (nearly) the same



CB 650 Cylinder is slightly higher



Cooling fins of CB 650 are wider



CB 650 head has casted intake manifolds, which are also shorter



and not so angled as the CB 550 ones





Studs have the same position



All the parts blasted



Stock CB 650 intake ports, blasted



You can clearly see the "football", the not really smooth transition from the valve seat to the cylinders material and the thick material around the valve guides.





Exhaust side ports





After some minor unshrouding work and a little bit of material removed





After the final treatment with more material removed and smooth surface (I forgot to take pics, so here are only pics with the carbs installed, upside down, just checking the fit)





That's my first selfmade porting job, so please be merciful :-D

After reassembling the engine on a CB 550 bottom, I put it into my bike. More or less I did it like paulages did it before with the difference, that I did not make a bigger bore for the ignition's advancer but turned a pin myself from hardened material which fits into the CB 650 crank's bore of 3mm (CB 550 4mm).

The carbs were cleaned in my ultrasonic bath and provided with a new leverage for the choke, since the play in the leverage system was too bad.

I also ordered 4 carb repair kits from Japan for less than 40 dollars and had superior results.

The tank on the bike is one from my spare parts collection since the original one needs a little bit of welding because the carbs hit the petcock.

So here is the engine installed



and tuned, as you can hear and see in the following video /Thanks to crappy smartphone camera...(Thumbnail is grey but video is working!):

Cafe Racer Cb 550 650 Hybrid Engine

And the final result from last week:








It has much more power compared to the stock setup! There is no noise from the primary chain anymore. Still looking for a good, tuneable electronic ignition to swap it against the stock one and a customized camshaft for a reasonable price. After these swaps this chapter can be closed!










« Last Edit: August 18, 2014, 08:13:09 am by Oette »

Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #305 on: August 18, 2014, 08:18:49 am »
Great engine mod. I'm curious why you chose the 650 gas tank over the 550.
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 Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #306 on: August 18, 2014, 08:27:49 am »
No, it's a CX 500 tank from the beginning of my build.

Why?

Because of those lines:


Offline Tews19

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #307 on: August 18, 2014, 08:29:06 am »
The hunt for a 650 engine continues here. Sigh. ..... Great write up and work OETTE.
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #308 on: August 18, 2014, 09:06:53 am »
No, it's a CX 500 tank from the beginning of my build.

Why?

Because of those lines:



Brain lapse.  Yes, that IS a CX500 tank.  And, yes, those lines do work nicely.
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 calj737

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #309 on: August 18, 2014, 11:48:28 am »
Some very nice work and a well executed build. I'm particularly taken with the green paint. It's a nice departure from the numerous blacks that are very popular now.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Tews19

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #310 on: August 20, 2014, 11:18:45 am »
Hey OETTE you state the exhaust ports are the same.on the 550 and 650.. I read they are spaced farther apart on the 650. Would the 550 exhaust work with a 650?
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #311 on: August 20, 2014, 06:55:55 pm »
Hey OETTE you state the exhaust ports are the same.on the 550 and 650.. I read they are spaced farther apart on the 650. Would the 550 exhaust work with a 650?

Not only is the spacing different, the diameter of the ports is different, too -- at least from what I read on the hybrid thread.

I'm saving my 650 headers just in case I need to incorporate them into a new pipe or to create a whole new pipe.
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 Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #312 on: August 21, 2014, 09:23:41 am »
Hey guys.

I am sorry for the misunderstanding, it's my fault. By "the same position" I meant, that the studs have the same angle.

The CB 650's studs are a little more wider indeed and my CB 550 exhaust wasn't a direct fit. I had to turn a spacer to fit the pipes.
Don't think, the CB 550's inner exhaust diameter is too small for the CB 650. It's just a single walled pipe and inner diameter is absolutely the same size as the one of a stock CB 650.

I attached some pics to underline the differences...


The measuring unit is millimeters.

Stock CB 550 exhaust collars, about 44mm wide at flange edge. Stud spacing is about 53,5 mm.



Stock CB 650 exhaust collars. About 47 mm wide at flange edge. Stud spacing is near 56mm.



CB 550's exhaust flange on collar, nicely fitting.



And on CB 650's collar. With force it will go right through the collar...



My pipe's inner diameter, about 31,5 mm, the same as CB 650 stock diameter.



My pipe's outer diameter at flange, 39 mm.



This will meet with the CB 650's exhaust ports nicely, but the problem is, that the mounting flange will drop through the CB 650's collars and the pipe won't be centered because it's outer diameter is a little smaller than the CB 650's (only about 34 mm).

My solution was to turn 4 centering rings out of stainless steel to meet the flange and center the exhaust. Furthermore I turned the collars' edge a little more deeper to provide enough space to mount my nuts on the studs. Once a wide exhaust gasket is in place, I bolted it right on with a good transition from exhaust port into the pipe.
Here's a pic of the ring, but the collars are not yet machined on the pic.



Hope that this mod can help someone to fit his pipe on the engine mod!

Setup is now road tested, and it rocks. Here are two pics of the ride. Greetings from green and sunny Germany.





Drive safe,

Oette





« Last Edit: August 21, 2014, 09:45:13 am by Oette »

Offline Tews19

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #313 on: August 21, 2014, 09:44:21 am »
So it is feasible. Wow. Now I'm really curious how a motogp would sound on a 650 stock or bored!
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #314 on: August 21, 2014, 10:45:16 am »
Hey guys.

I am sorry for the misunderstanding, it's my fault. By "the same position" I meant, that the studs have the same angle.

The CB 650's studs are a little more wider indeed and my CB 550 exhaust wasn't a direct fit. I had to turn a spacer to fit the pipes.
Don't think, the CB 550's inner exhaust diameter is too small for the CB 650. It's just a single walled pipe and inner diameter is absolutely the same size as the one of a stock CB 650.

I attached some pics to underline the differences...


The measuring unit is millimeters.

Stock CB 550 exhaust collars, about 44mm wide at flange edge. Stud spacing is about 53,5 mm.



Stock CB 650 exhaust collars. About 47 mm wide at flange edge. Stud spacing is near 56mm.



CB 550's exhaust flange on collar, nicely fitting.



And on CB 650's collar. With force it will go right through the collar...



My pipe's inner diameter, about 31,5 mm, the same as CB 650 stock diameter.



My pipe's outer diameter at flange, 39 mm.



This will meet with the CB 650's exhaust ports nicely, but the problem is, that the mounting flange will drop through the CB 650's collars and the pipe won't be centered because it's outer diameter is a little smaller than the CB 650's (only about 34 mm).

My solution was to turn 4 centering rings out of stainless steel to meet the flange and center the exhaust. Furthermore I turned the collars' edge a little more deeper to provide enough space to mount my nuts on the studs. Once a wide exhaust gasket is in place, I bolted it right on with a good transition from exhaust port into the pipe.
Here's a pic of the ring, but the collars are not yet machined on the pic.



Hope that this mod can help someone to fit his pipe on the engine mod!

Setup is now road tested, and it rocks. Here are two pics of the ride. Greetings from green and sunny Germany.





Drive safe,

Oette

Oette,

Das ist gut!  Is there any chance you can turn a set of centering rings for me?  I'll gladly pay you for them! 

Don
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 SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #315 on: August 21, 2014, 10:45:44 am »
So it is feasible. Wow. Now I'm really curious how a motogp would sound on a 650 stock or bored!

Me, too.
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 Tews19

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #316 on: August 21, 2014, 11:22:29 am »
Count me in too for the rings if you are willing to do a few.
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #317 on: August 21, 2014, 02:16:54 pm »
Does anyone know if you can mount a 550 oil filter housing on a 650 crankcase?  I'm trying to figure out if my Cycle X spinoff oil filter housing for a 550 will fit on my 650 motor.
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 Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #318 on: August 21, 2014, 02:29:56 pm »
Yep, its the same mounting. You just need the CB 650's extended bolt and spacer. It uses the same filter as the CB 550 though. Without the spacer you might be able to mount a longer filter also.

I wasnt able to use mine because I needed the shorter Cb 550 one to clear the headers.

Oil pans are interchangeable, too.
« Last Edit: August 21, 2014, 02:32:12 pm by Oette »

Offline Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #319 on: August 25, 2014, 03:48:52 am »
Hey guys.

I am sorry for the misunderstanding, it's my fault. By "the same position" I meant, that the studs have the same angle.

The CB 650's studs are a little more wider indeed and my CB 550 exhaust wasn't a direct fit. I had to turn a spacer to fit the pipes.
Don't think, the CB 550's inner exhaust diameter is too small for the CB 650. It's just a single walled pipe and inner diameter is absolutely the same size as the one of a stock CB 650.

I attached some pics to underline the differences...


The measuring unit is millimeters.

Stock CB 550 exhaust collars, about 44mm wide at flange edge. Stud spacing is about 53,5 mm.



Stock CB 650 exhaust collars. About 47 mm wide at flange edge. Stud spacing is near 56mm.



CB 550's exhaust flange on collar, nicely fitting.



And on CB 650's collar. With force it will go right through the collar...



My pipe's inner diameter, about 31,5 mm, the same as CB 650 stock diameter.



My pipe's outer diameter at flange, 39 mm.



This will meet with the CB 650's exhaust ports nicely, but the problem is, that the mounting flange will drop through the CB 650's collars and the pipe won't be centered because it's outer diameter is a little smaller than the CB 650's (only about 34 mm).

My solution was to turn 4 centering rings out of stainless steel to meet the flange and center the exhaust. Furthermore I turned the collars' edge a little more deeper to provide enough space to mount my nuts on the studs. Once a wide exhaust gasket is in place, I bolted it right on with a good transition from exhaust port into the pipe.
Here's a pic of the ring, but the collars are not yet machined on the pic.



Hope that this mod can help someone to fit his pipe on the engine mod!

Setup is now road tested, and it rocks. Here are two pics of the ride. Greetings from green and sunny Germany.





Drive safe,

Oette

Oette,

Das ist gut!  Is there any chance you can turn a set of centering rings for me?  I'll gladly pay you for them! 

Don

Hey Don,

It would not be a problem to do some of these rings, but I'd rather suggest that you turn or have them turned yourself. It's not much work but I am located in Germany and shipping to the US is at least 20 $, probably some more.

I turned those rings out of metric stainless washers of M16 or M20 bolts. Any machine shop or friend with a lathe should be capable of doing this within some minutes.
That's probably the cheaper and faster solution for you. In addition, the collars may need some treatment, too. But that's something you have to measure with your exhaust and collar combination.

Regards,

Oette


Offline SOHC4 Cafe Racer Fan

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #320 on: August 25, 2014, 11:20:04 am »
Vielen dank.
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 Nicolai

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #321 on: August 25, 2014, 11:17:18 pm »
 


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'77 CB500 K3

Offline Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod
« Reply #322 on: August 27, 2014, 10:34:54 am »
And that's how it sounds and runs. And that's nothing compared what she still has in stock  ;D

CB 550 Cafe Racer Test Ride

Offline Tews19

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Re: Green Hornet CB 550/650 Hybrid Engine Mod //Video of testrun
« Reply #323 on: August 27, 2014, 10:37:12 am »
Oette, does she have that much more power when riding? I have looked up a few videos on YouTube and the 650 engine seems rougher sounding. Not as smooth as the 550. Also does it shift as smooth as a 550?
« Last Edit: August 27, 2014, 11:15:36 am by Tews19 »
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Oette

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Re: Green Hornet CB 550/650 Hybrid Engine Mod //Video of testrun
« Reply #324 on: August 27, 2014, 10:44:34 am »
It's definetely more power. And there's also a noticeable torque increase. I didn'T have the time to check all the output on a dyno though.
Smoothness is about the same.