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I picked up some cheap footpegs off of amazon and wasn't particularly surprised that they didn't fit without some machining. Then I looked at my order again and realized that I ordered pegs for a CBR600F2. I was looking at a few different pegs and I guess I picked the wrong one. No big deal, I...

I also wanted to test out footpeg locations. I made these adaptor plates in a couple of hours that allowed the stock CB-1 peg assemblies to be installed and moved around quickly and easily. Once I decide where I want the pegs I will build some custom rearsets. I am tall, and have bad knees, so...

There are lots of unknows when doing major modifications to a bike in regards to the location of the seat, tank, bars, footpegs, etc. I like to try things out before committing to building time consuming parts. In that vein I first mocked up the subframe in PVC tubing first, then built a...

I wanted to check bar to tank clearance before I started building the tank in aluminum. I put together this mock-up from 1/4" mdf. You can see how much volume I am going to lose to house the throttle bodies and plenum.

I was searching for some parts for another project and came across a Kawasaki steering damper that I bought way back in the 80's. I know I had it but hadn't seen it in years. I used the stock mounting point on the GSXR lower clamp, machined off the kawasaki body mount and made a new floating...

I've got my secondary injector setup nearly finished. I made up aluminum inserts for the injector to sit in the bodies. I will have these PLA bodies replaced by ASA printed bodies.

For better or for worst I decided to go with an external fuel pump. This style of pump is used on the larger Honda Foreman ATV's and the CTX1300 cruisers. It was a major pain to find a place to fit it that was low enough to allow for gravity fill from the gas tank. This location might be less...

I got the preliminary exhaust fitted too, enough to give me a mating location at the rear to mate up with the muffler.

Everything proceeds at a snail's pace. Sometimes you spend weeks working on a few items and when you are finally done you look at it and think "This should have taken a few days". And you probably could do a second on in a few days without all the thinking, fitting, rethinking, refitting...

Progress has been slow of late. My milling machine motor packed it in so I was out of commission for a few weeks. It's all up and running again (nothing $900 couldn't fix) and I was able to get on with fixing my latest problem. You can see from one of the above photos that I had just enough...

Another milestone today, but not without some drama. I got the intake plenum basically finished, just need to add a snout for the intake tube to attach to, and fill in the sides and the rear cutouts. I am going to run stock CB400FS 140cc injectors in the throttle bodies, and then CBR600RR 190cc...

Yes. Money well spent if you want to make any suspension related mods.

I entered all my measured data into my suspension software to position the lower link mount, and upper shock mounting locations. I compared the results to my other build, labelled "B28", which was designed to mimic a CBR600RR. With the 108N/mm spring that comes from a CBR600RR shock I think I...

Out of time photo , but here is one of the disk adaptors on the mill. The chips give an indication of how much material was removed.

I agree that there were multiple ways to tackle this. I picked one path that I wouldn't follow again. I'm beginning to think that this will be a temporary frame build, and once the bike is complete and running I will likely pull it off the road and over the winter completely redo this section of...

Mounting the CBR400RR swingarm turned out to be a real nightmare, mostly of my own doing. For starters the swingarm was too wide at the pivot tube to fit into the frame, and the CB-1 only uses a 15 or 17mm pivot bolt, whereas the NC29 uses a 20mm bolt. I realized that the easy solution was to...

EX119X - Thanks for the gearing tip. When I was building my SOHC400 I ordered 2 custom aluminum rear sprockets. I wasn't sure how long an aluminum rear sprocket would last so I ordered an extra. I've ran that original sprocket for over 30k KM and it is still in good shape, so the extra going on...

I had decided that I wanted to use a CBR400RR NC29 swingarm, CBR600F2/F3 wheels, and a GSXR750 front end that I had on hand. With cash in my pocket from the endurance racer sale I started collecting parts. I bought a CBR600F3 with a hole in the crankcases for just to get the wheels. NC29...

"What's happened? Tell me everything." "Alrighty, then ... picture this if you will." I've had this idea in my head for quite a few years now. In the mid 2000's Honda introduced a CB4 Interceptor concept. I thought that a CB-1 would make a good starting point. A big plus to a CB-1 where I...

The bike rides and handles really nicely. The suspension works well, the front brake is tremendous. It feels really well balanced and corners very neutral. The riding position is not as extreme as I thought it would be. I'm and old guy and I can ride it for an hour at a time without issue. I...