CB750F First Project

Rockcity: Thanks for the science lesson on the ignition. I guess a little discretion with the sand paper would not be a bad thing every now and then.

Thanks for all the thoughts on the stand issue. I think I am going to keep the side stand and cut the center.

I agree with Boomshakalaka that it feels "cafe", but the 750 is such a tank hoisting it up onto the stand all the time sounds like no fun. Now that I think about it, I always used the side stand before I stripped the bike. Also I have a lift that I can use for maintenance.

So more cutting and grinding tonight ;D
 
Not a huge amount of progress made, but certainly a moral victory. I now have a roller.

b59775e1_339_l.jpg


I will get some better pics up as things move forward, but it felt like a big night and I was excited to post something ;D
 
NICE JOB MAN!!! looking good... i cut the center stand off my build, my enfield is only a center stand and i hate it...just akward every where i go to get off and put the stand down, sure it may sound like a cake walk, but when you are on a hill or in grass... had a few... it can be a pain! only time i miss a center stand on any of my scoots is when i am kicking them... it is nice to just pop a center stand down and go to town...
I would like the idea of making one like rock city was talking! that is a great idea!
 
I have the opposite problem. With the placement of my new rearsets at the stock passenger peg position the side kickstand is going to be in the way. My bike didn't have the center stand when I bought it for some reason so I'll have to pick one up on Ebay and hope it clears the shifter or relocate my side stand.
 
wow your rear sets are crazy low then! you can also us a rubber stopper to move the kick stand down a bit... or if all else fails jut move the kick stand to a new location. i am trying to figure how the two of them would be in the way of eachother and just can not picture it... do you have any pictures?
 
Bloody Everyone said:
chop the centrestand

Sweet holy bananas! Are you serious? Just remove it with love and care and store it against the garage wall, until such a time as you need it for maintenance. Then you can simply refit and rock on. Its what I'm doing with my GS as soon as it gets the exhaust repainted and refitted.

That aside, looking good man. Especially that awesome job you did on the engine.

- boingk

EDIT: Realised you said you have a stand. Still stand by my advice as a notice to others.
 
Boingk-

That is pretty sound advice, but I already cut off the mounts. I just wanted to keep it as clean as I could.

Thanks for the encouragement. I will get better picture up as more bits get added.
 
JRK5892 said:
wow your rear sets are crazy low then! you can also us a rubber stopper to move the kick stand down a bit... or if all else fails jut move the kick stand to a new location. i am trying to figure how the two of them would be in the way of eachother and just can not picture it... do you have any pictures?

I'm going to try to get them mounted tonight so hopefully I can get some pics then. I'm mounting the rearsets straight on to the stock passenger peg mounts since that's a very comfortable riding position. In fact I've been using the passenger pegs once I'm up to highway speeds already so I'm not eating my knees since I added the clubman bars.
 
Thats got a nice stance on it, it'll definitely look the part once its all together. I can see what you mean about the clean lines without the center stand as well, definitely makes a big difference...the extra photos with different angles help a lot.

Cheers - boingk
 
I did a little work on the front of the bike tonight, and I am pretty happy how it turned out. Sorry for the phone pics, but my good camera is just as bad if not worse in my garage.

The first thing I had to do was lower the fork tubes in the trees. Because I am using ace bars, I have very little room for the top of the fork tubes. I liked how the bike had a more aggressive stance with the lower font end, but it is just not an option with my bars. I still need to clean up the top of the bar clamps, but having the bars in place makes moving the bike around the garage a lot easier.

Here is a profile shot

pic1-1.jpg


I also put on my headlight. It is a massive lucas style light. It has tons of room to hide wires in, and the shape of it fits my eye. It probably doesn't belong on a 70s Honda, but I like it.

pic3.jpg


Next I got that speedometer and the tachometer mounted. I used mini gauges attached at the mounting points for the original speedo and tack plate.

pic2-1.jpg


I just dropped a 6M bolt into the old mounting points on the top yoke, sandwiched the new speedo/tach mounting plates with rubber grommets to help with vibrations, capped it with a washer, and then bolted it up.

Next up, I need to work out a way to mount the seat. Here is a picture of a seat I found on the street. I threw it on the bike to see what it looked like, and I actually like it a lot. It has a flat tracker sort of feel. I am still going to go with my original seat plan, but I thought it was worth putting a picture up.

pic4.jpg
 
Loving what I'm seeing. I really dig that bucket. The 750 is a velumptious curvy gal. I say she deserves some large scale jewlery. It is balanced well by the mini clocks too.

As far as the tracker seat goes... er.. uh... not so much.
Could be a good base, but I'm not feeling it. The rest is looking absolutely great. Keep plugging away and you'll get it done with style to spare.
 
I woudl have to agree. Beautiful rolling chassis, love the tank and the whole front end. The tracker seat just doesn't work though...At least not that one, maybe a smaller less intrusive tracker seat might look good. I am following your build since I too am re-building my cb750k with 750F parts. Keep up the good work! -MBS
 
Okay, I get it, you don't like the seat ;D

Like I said, I just threw it on there to see what it looked like. I think what I like about it is the duck bill shape at the very end. And that's a good thing because the seat that I am going to use has the same shape. I also plan on building up the front of the seat in a similar way. That way I can cover the open arch at the end of the tank where the tank met the original seat.

Thanks for the feedback. I will post more pics of the progress as it comes.
 
I made a little progress tonight on getting the seat that I will be using mounted on the bike. I cut off the old seat hinge from the frame and then cut the new seat to length. In this picture, the seat is just placed on the frame. When I build the mounts for the seat I will make sure that the lines match the lines of the tank.

seat.jpg


Originally I wanted to keep the seat very short. Basically have just enough room to fit between the tank and the back stop. This is a little longer then I was thinking, but if I get any shorter I don't think the seat will cover enough of the back wheel. In the end I think what I would need is a longer tank, (I would love something like Gage Werke Composites is showing in the "tanks and seats" page http://i173.photobucket.com/albums/w71/bearanddragon/100_2950.jpg) but that is not happening on this project. Maybe someday down the road, but not with this bike.
 
Personally, I like a longer seat. That said, I could see it a bit shorter if that is the look your after. I'm not sure who's bike this is in the first pic, but the seat stops above the axle line. I also chopped and raised yours to try for a similar look.

Just food for thought. Looking more like a proper cafe everyday man!
 
Thank for the Photoshop job on the seat CresentSon. I will probably take an another inch or so off the front the seat. I appreciate the help.

I also want to get a little advice on the frame. If you look closely in the first picture above (CresentSon Photoshopped it out in his pic) you can see that the end of the frame hangs out below the seat. Needless to say I think it looks messy and it is bugging me.

you can see it better in this picture.

seat1.jpg


One option is that I can cut the frame in front of the cross brace to remove the part of the frame that is showing below the seat. See the pictures below:

Cut 1
seat_cut1.jpg


Cut 2
seat_cut2.jpg


If cut off the cross brace, then will I need to weld in a new one? I have seen some bobber projects that have cut their frames down just behind the suspension bolts, but I can't remember if they welded a cross bar back in. I am not an overly aggressive rider, but will this kill the handling of the bike? (Will the frame twist to much?)

The back of the seat tapers and is more narrow then the end of the frame. So even if lower the seat on the frame rails, I still would not be able get the seat over the back of the frame.

The only other other option that I can think of is to try and hide it when I mount the turn signals or the license plate.

Any idea would be greatly appreciated.
 
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