This is a discussion on CB400T Shitbox Build - Daily Driver within the Project Builds forums, part of the Caferacer.net Forums category; Originally Posted by woodsman You've done a really nice job on this bike, the way it looks would make me want to go find a ...
I got a new spark plug and both sides are right as rain.
I like how it turned out. I can see now this is how these bikes are supposed to look. There's still a few things wrong with it though. The head needs a valve job real bad, and the issue with the balancer chain tensioner is bugging me. I just want to get the plates before I bust it down again.
"Non urinat in ventum"
I think Cyorg is right about the adjuster, with his level of confidence. If you want quick answers to engine questions go to Honda Twins there are a bunch of people there that know those engines well.
Didn't read this whole post but it may answer your question.
Last edited by woodsman; 05-25-2019 at 06:22 AM.
Updates here... got the bike back from inspections and she passed. Bullshit with German paperwork be damned. Ended up having to buy another set of tires which match exactly the size printed on the title. Even though my dunlops are better, safer, and fit. Awesome.
Got it back home and adjusted the balancer chain tensioner. Here are a few pics
I adjusted it tighter, but didn't dare go too tight. You can see the mark is now just left of 12 o'clock, so there's still life in the chain. It sounds about the same at idle, but when I rev it up it sounds much better. Heres a vid.
That has some serious mechanical racket going on in there, sure hope you can sort it out.
Good news and bad news.... Good news is I've officially been approved by the bureaucratic gongshow here for both license plates and a drivers license.
Bad news is the rattle sound in the bike is not the balancer chain. I've adjusted it and the sound is exactly the same. I have a hard time thinking it's the top end of the engine, since I just rebuilt it. I suspect something in the crankcase is slapping or knocking. It doesn't affect the function of the bike though... yet. Any ideas what's causing the noise?
I have also thought about just driving this bike as long as she will last and then buying something bigger. Maybe a VFR750
"Non urinat in ventum"
I looked back through the videos I've taken during the process of fixing up this bike. I have video of it right when I got it, which is ugly because the carbs were dirty.
I cleaned the carbs and took this video and I feel like I can hear the same ugly slapping, pinging noise that it is making still. Somehow (probably because I'm a novice) I missed it throughout this whole process. I think later I ascribed it to the balancer chain being loose but that didn't play out.
You're probably right, taking the engine out makes the most sense. I could buy a donor engine, but who knows what issues a motor in a box might be hiding. I already know the top end of this one is sound. I would have to take it out to stick a new one in it anyways.
Main problem now is that I don't have a shop. The bomb shelter situation shifted after the bike came out. Guess the neighbors upstairs don't like the smell of burnt fuel.... Looks like it's the living room for this next chapter.