My Honda CB750 diesel project
Moderators: Dan J, Diesel Dave, Crazymanneil, Stuart
My Honda CB750 diesel project
I am building a diesel bike of a CB750 chassis with Lombardini 502 engine.
Here is a video from today.
http://youtu.be/v7ExyG3QJKI
Here is a video from today.
http://youtu.be/v7ExyG3QJKI
- coachgeo
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Re: My Honda CB750 diesel project
What are you using for transmission?
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Re: My Honda CB750 diesel project
Any details on the build. Looking good!
Re: My Honda CB750 diesel project
I am building in a CVT from a microcar. Now I am going to combine the honda wiring with the wiring from the microcar that have the charging and glowing unit.
- coachgeo
- I luv the smell of Diesel...
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Re: My Honda CB750 diesel project
Ahhh. which Micro car? Suspect that the CVT you'll be adapting is manufactured by CVtech in Canada. Check their site. http://www.cvtech-ibc.com/ and with some digging around your liable to find the model/type of your clutches. Might help steer you.Bj-torb wrote:I am building in a CVT from a microcar. Now I am going to combine the honda wiring with the wiring from the microcar that have the charging and glowing unit.
We have a CVT forum in here. Would love for you to update us on your tweaking of the clutches in a thread there when you get to that point.
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Re: My Honda CB750 diesel project
Welcome to the forum and thanks for sharing! ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
Stuart. M1030M1, Honda NC700S, Grom!, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.
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Re: My Honda CB750 diesel project
Looking good.
The CVT looks much better on a larger bike than it did on my MZ. My CVT was from an Aixam
At first I was going to say you have fitted the rear pulley on the wrong way round but I see in a later pic you have sorted it and I presume the spacer on the front pulley is so that you have enough room on the rear pulley to allow for expansion otherwise you might hit the frame as the rear inner pulley expands in??![Confused :?](./images/smilies/icon_confused.gif)
The CVT looks much better on a larger bike than it did on my MZ. My CVT was from an Aixam
At first I was going to say you have fitted the rear pulley on the wrong way round but I see in a later pic you have sorted it and I presume the spacer on the front pulley is so that you have enough room on the rear pulley to allow for expansion otherwise you might hit the frame as the rear inner pulley expands in??
![Confused :?](./images/smilies/icon_confused.gif)
Re: My Honda CB750 diesel project
I have put on a spacer to get right alignment to the rear sprocket. Because the sprockets are on the same side as the cvt.
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Re: My Honda CB750 diesel project
Ah ok. When I ran my engine/cvt for the first time the rear pulley ripped off the stand spring when fully open ![Laughing :lol:](./images/smilies/icon_lol.gif)
![Laughing :lol:](./images/smilies/icon_lol.gif)
- old clunker
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Re: My Honda CB750 diesel project
The project is looking good Bj-torb! Hope the cvt runs well when it's finished.
Keep us posted how it all goes for you.
Keep us posted how it all goes for you.
There's nothing like the smell of burnt vegetable oil in the morning!!
1971 Royal Enfield diesel running on diesel/biofuel.
1971 Royal Enfield diesel running on diesel/biofuel.
- henneberg
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Re: My Honda CB750 diesel project
Hi,
Looks good, nice work with lining in engine and transmission![Smile :)](./images/smilies/icon_smile.gif)
Looks good, nice work with lining in engine and transmission
![Smile :)](./images/smilies/icon_smile.gif)
![Image](http://larsenhenneberg.dk/pictures/Erik_avatar.jpg)
---------------
Enfield Ruggerini MD151 654cc build - running: http://www.youtube.com/watch?v=b4UsIn5QLxk
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Re: My Honda CB750 diesel project
Looks Excellent! Doesnt seem like you had to do too much work to the frame to get the engine to fit?
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Re: My Honda CB750 diesel project
Don't forget that's because the CVT takes up little room compared with a gearboxalexanderfoti wrote:Looks Excellent! Doesnt seem like you had to do too much work to the frame to get the engine to fit?
![Smile :)](./images/smilies/icon_smile.gif)
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Re: My Honda CB750 diesel project
That is true!gilburton wrote:Don't forget that's because the CVT takes up little room compared with a gearboxalexanderfoti wrote:Looks Excellent! Doesnt seem like you had to do too much work to the frame to get the engine to fit?
I wish somebody would come up with a cheap aftermarket thin gearbox+clutch combo that can handle 30 odd BHP, that would IDEAL for us! The villiers/enfield boxes can take the power but are hard to find and expensive, and not great to actually change gear with. All harley stuff is WAY too expensive and too big as well. Doesnt seem to be much else.
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Re: My Honda CB750 diesel project
Great work Bj-torb. Can't wait to see the finished machine on the road. And great to have another 750 builder join the ranks.
Regarding the gearbox/cvt discussion, it would appear from some eyeball measuring that an Enfield gearbox would fit quite nicely behind the Lombardini. And then the accompanying belt drive is really quite simple and inexpensive. The comparison below is of 2 differnt production CB750's. However, the engine/trans cradle opening is identical front to back and you'll note the Lombardini doesn't take up as much space as the Yanclone (or are my eyes deceiving me?).
BTW, what kind of power does the 502 produce?
Regarding the gearbox/cvt discussion, it would appear from some eyeball measuring that an Enfield gearbox would fit quite nicely behind the Lombardini. And then the accompanying belt drive is really quite simple and inexpensive. The comparison below is of 2 differnt production CB750's. However, the engine/trans cradle opening is identical front to back and you'll note the Lombardini doesn't take up as much space as the Yanclone (or are my eyes deceiving me?).
BTW, what kind of power does the 502 produce?
Ron
Re: My Honda CB750 diesel project
[quote="pietenpol2002"]Great work Bj-torb. Can't wait to see the finished machine on the road. And great to have another 750 builder join the ranks.
Regarding the gearbox/cvt discussion, it would appear from some eyeball measuring that an Enfield gearbox would fit quite nicely behind the Lombardini. And then the accompanying belt drive is really quite simple and inexpensive. The comparison below is of 2 differnt production CB750's. However, the engine/trans cradle opening is identical front to back and you'll note the Lombardini doesn't take up as much space as the Yanclone (or are my eyes deceiving me?).
BTW, what kind of power does the 502 produce?
I have good space behind the engine so a enfield gearbox would fit. The power is from 11,2 to 13,4 HP depending on adjustment. The top revs is from 3000 to 4500 depending on the spring in the speed governor. Now it is 3500 but I will change that if nessesary. So it looks like it is a very versetail engine.
Regarding the gearbox/cvt discussion, it would appear from some eyeball measuring that an Enfield gearbox would fit quite nicely behind the Lombardini. And then the accompanying belt drive is really quite simple and inexpensive. The comparison below is of 2 differnt production CB750's. However, the engine/trans cradle opening is identical front to back and you'll note the Lombardini doesn't take up as much space as the Yanclone (or are my eyes deceiving me?).
BTW, what kind of power does the 502 produce?
I have good space behind the engine so a enfield gearbox would fit. The power is from 11,2 to 13,4 HP depending on adjustment. The top revs is from 3000 to 4500 depending on the spring in the speed governor. Now it is 3500 but I will change that if nessesary. So it looks like it is a very versetail engine.
Re: My Honda CB750 diesel project
More updated on my project.
Lights and blinkers are done.
Because it has CVT drive i have added a parkingbreak on the rear wheel as a precaution so it dont accidently run away when i start it. See YouTube video.
http://youtu.be/TcmFPZcF_mI
Lights and blinkers are done.
Because it has CVT drive i have added a parkingbreak on the rear wheel as a precaution so it dont accidently run away when i start it. See YouTube video.
http://youtu.be/TcmFPZcF_mI
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Re: My Honda CB750 diesel project
Looks really good and very tidy!
Re: My Honda CB750 diesel project
Sidecover and backfender are now put on. Not long until i can take it apart and paint ![Smile :-)](./images/smilies/icon_smile.gif)
![Smile :-)](./images/smilies/icon_smile.gif)
- coachgeo
- I luv the smell of Diesel...
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Re: My Honda CB750 diesel project
Looks real sweeet. Usually images are too large. Not so this time. Can you put up a slightly larger image?
Re: My Honda CB750 diesel project
Latest video of my diesel Honda.
http://youtu.be/d1s-mbG09Jw
http://youtu.be/d1s-mbG09Jw
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Re: My Honda CB750 diesel project
Looks great! Timing sounds spot on from the video ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
- Stuart
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Re: My Honda CB750 diesel project
Cool! ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
Stuart. M1030M1, Honda NC700S, Grom!, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.
Re: My Honda CB750 diesel project
I am very satisfied with my project. The only thing I need now is an original Honda cb 750 kz seat. So if someone knows about one please give me a notice.
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Re: My Honda CB750 diesel project
If you find one on in the UK that wont ship abroad, I would be happy to buy it and send it forward if you want.Bj-torb wrote:I am very satisfied with my project. The only thing I need now is an original Honda cb 750 kz seat. So if someone knows about one please give me a notice.