Riding My Honda CB750 Cafe Racer Project Didn't Go To Plan! | Custom Motorcycle First Ride | 32
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- Опубліковано 7 кві 2024
- Riding My Honda CB750 Cafe Racer Project Didn't Go To Plan! | Custom Motorcycle First Ride | 32
In this video I finally get to ride my project cafe racer CB750, typically initial shake down rides do throw up issues. Could be worse.
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It has felt like a long time coming for me to ride my CB750 Cafe Racer. To be honest the Winter did cool the ambition to get out on it quite a bit. That and I kept finding other things to do 🙂
This bike has a number of custom features that I knew may throw up some problems. But you never seem to get the problems you expect, instead you get a couple of unexpected issues to look at.
It was with a little trepidation that I prepared for the first ride. With the changed riding position where every point of contact was different, handlebars, seat and footrests, I was a little worried that I wouldn’t fit into the shape required to ride safely, or comfortably. Overall though this wasn’t a problem, although the ease with which the footrests fold up needs to be taken into account.
I knew that the gear change wouldn’t be the best. The whole linkage just seems set up to cause a problem. But I was more surprised by the driveline grinding noise. On my initial ride out it was so bad I aborted after a few hundred yards.
Once I started to look at the driveline issue it became very obvious that the chain was hitting the aluminium plate in front of the rear wheel. You could see witness marks where it had removed metal. I hadn’t made this cut out, but I really should have checked it, however whenever I was working in that area I was on my own so I couldn’t sit on the bike and get somebody to look. As it had been cut out initially I really didn’t give it any attention assuming that it would probably be alright.
I cut the plate and more than doubled the room that the chain had, having seen the witness marks I thought that would be enough. However on the second trip out it was still catching the plate, nowhere near as much but I will have to remove more before the next trip out.
I have a plan for the gear change that should work well, and I am going to put a lot more effort into getting the engine to tick over right. I think with these sorted it should become a usable bike. I noticed that I still have an issue with the tank. Although one side has welding and all of the links have been fixed, I now notice some fuel seeping through parts of the weld on the other side, not a lot but it is noticeable. Either more welding or a liner is definitely needed.
On the plus side once underway the bike did seem to respond to the throttle well, and even before the cosmetics are done it does look a great shape. The riding position didn't seem to be a big issue, but I think the rearsets are a little too rearward!
Overall I think it is all going to work out OK :) I just need some consistently good weather. After making these initial rides, it started raining again, and it is forecast to be wet for another couple of weeks!
I knew the gear change was an issue. It was very difficult to get the lever at an angle that suited my foot on the footrest, and at the same time didn’t catch on the bar that connected to the mechanism on the engine. Initially I thought I had something that would work, but during the ride I realised that it didn’t, but it was made much more of a problem due to the tick over being inconsistent and too high. I spent a lot of time trying to improve it but I still don’t think it is right.
The biggest problem though was the tick over and the fact that engine took too long for the tickover to settle. It made selecting neutral impossible, which was compounded by the omission of a neutral light. This made the gear change problem seem much worse. I am not sure at this point if it is an air leak, just needs setting properly, jetting or because of the pod filters and freeflow exhaust.
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Absolutely amazing - a classic first ride after a project like that. You always come back with tons of things to still work on, but you keep on hanging to the positives ( mostly not many, but they are there ! ). That last mile is always the hardest. Awesome job on it - absolutely love your videos !
Thanks for the comment. I wasn't too disappointed, I did expect issues. It is funny how the things that cause the biggest headaches are not the same ones you think will be the biggest issues. But it is reassuring when at least some of the faults were on your list :) I can't wait to get them solved. Take care.
Congratulations! Any day you don't have to push a project back is a good day!
It did sound strong under power, which is a testament to your rebuild!
I recognized the chain dragging sound right off.
You'll have her humming along in no time!
Thank you! It makes a change :) No doubt there will be a few other things to look at along the way.
Congratulations to the first ride! Hope you can sort out the remaining issues and let us see another ride and hearing the engine on higher revs next time. Great fun, as always, to watch your videos. 🙂
Thanks! I am really hoping to get the issues sorted so that I can put a few miles on it. I need to bear in mind that it has new rings though, so full throttle will still be a little while off :)
Exciting! I'll be that every one of us who built our bike was pinned to the screen. "What's that sound there?" This whole problem-solving part of motorbikes can be stressful, but in the end it almost always pays off, and there's that rush of excitment. This is the life.
Thanks. Like you said stressfull, but solveable. The mixed weather we are having means that you can't get straight back out to try the next solution to issues. I have a good idea of what I need to do, and hopefully you will get to see how it works out soon. I really enjoy problem solving,and it isn't my first rodeo! :)
It would have been terribly tempting to cut that notch out in situ.
Love your videos… very relaxing and informative.
Cheers from Southern Arizona.
Yes, I was tempted, but I did want to look at the other side where the brake stay is. Take care.
This is a great channel for highlighting the real problems of builders of custom bikes... It perfectly mirrors the experience of anyone who's given it a go..
Thanks. It is what keeps it interesting! Let's hope not too interesting! Ha.
LOL!!! You took the words right out of my mouth! “You meet the nicest people on a Honda!” Great to see your maiden voyage!! Keep up the good work!!
It always seem to be true. But to be fair you meet quite a few on other marques too! :)
Good to see it out and about. agree with the other poster on a bit longer intake tract, although cv carbs benefit from it more than slides do with pods. get the "colourtune "out and do the idle mixture when you do the sync. you may have just enough room to do away with the rose linkage and use a rear facing std pedal? Not a fan of "race" gear pattern but may work. There must be a a neutral light in that speedo/tach clock? Look forward to the next instalment.
Bloody Hell Rob. Are you reading the scripts of future videos :) Air leaks, sync and idle mixture are next steps with the carbs. Maybe new plugs as well. And as for the gear change, we are both on the same page! The clocks don't have a neutral or oil warning light wired in, which seems a shame, so I may have to do some lights on a supplementary bracket, but I think when the idle and gear shifter is sorted neutral will be easy to find, and I have an oil pressure gauge so that light isn't too much of a worry. See you about ;)
Great looking bike! I’ve been enjoying watching your videos! Waiting on new coils for mine coming in the mail today than going to work on it😁
Thanks. Good luck with your coils, hope it moves your project on a long way! :)
Nice one just in time for the nice weather too
Let's hope we get enough of it.!
Great to see it out on the road, I couldn’t get mine to run well on pod’s until I fitted longer intakes to them (velocity stacks from the original air box), but who knows yours might be ok, I also had to up the pilot jet size, anyway it’s rolling under it’s own steam so that’s a great start 👍
I have taken what you said on board, and I do have a set of trumpets. I would like to get something like the one piece K&N filters with four holes for them to go into. But I will see how I go on with the pods first. I have upped the mains to 125 using a formula off a forum, but I don't know if that will work out yet.
Have you rejetted carbs seeing as you’re running a 4 into one and not original airbox ? Have you checked plug conditions see if it’s running lean
I have upped the mains to 125 using a formula from a forum, but I am not at a point where I can start checking if that is right yet. The main issue is with idle and slow runnig, but another go at syncing may just sort that out. It seems to run well on part throttle so the main jet and the needle might be somewhere near. Once I get the slow running right I will then start worrying about the more open throttle running. I will need to put a few miles on the engine first.