So you bought a CM400 / CB400T, now what...(50+ Build Links!)

Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Frankenfe said:
Glad to hear it - Glad I could help. yea But $12 that works compared to $60+ for oem.......And yo have a reserve now right?

FYI, along with change oil and plugs and filters on the to do list when you get an old bike, add lube cables ;)
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Yup! I have reserve now. I just gotta test it out and see how much it actually is.

Considering that the bike was taken apart almost to the last bolt ( with exception of pistons/cylinders- I didn't have the neccessary tools), I should have remembered to take care of the cables. :-[

I would replace all the cables for the new ones if I would decide to keep the bike, but i have put way too much money into it as it is. I will probably never get back the money put into it if I decide to sell it. sighh...
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Does anyone have an extra headlight from a 78 CB400t? The 3 prongs on the back of mine broke off from the rest of the lamp, so I either need to figure out a way to fix it or buy a new lamp. I'm sure other models may fit. Its a 12V 50/35W.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

I think the compression is supposed to be in the 180's - 14 psi according to the shop manual I have. I was getting 155 on both cylinders with a leaky head gasket. On the fence about replacing the rings too while I have it apart.

I actually sprung for the OEM Petcock replacement and saw that I had to remove the screen filter portion to get it to fit into the throat of the bung. The old one also had the screen part off of it.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

theboxrules said:
I think the compression is supposed to be in the 180's - 14 psi according to the shop manual I have. I was getting 155 on both cylinders with a leaky head gasket. On the fence about replacing the rings too while I have it apart.

I actually sprung for the OEM Petcock replacement and saw that I had to remove the screen filter portion to get it to fit into the throat of the bung. The old one also had the screen part off of it.
Click to expand...

Get the petcock that I bought. It's pretty great for the price that I paid. no issues with the screen.

I was planning on finishing the engine restoration ( replacing rings, and one of the bottom gaskets as well as doing external cleaning and coating) But I found a pretty eager buyer. hopefully i will sell it. I will almost get all the money that I put into it. Yay!

It's time for a bigger bike!
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Last two pictures taken minutes before I handed over the old girl to the new owner.

Damn, I will miss it. It was pretty great to zip around the city.

Goodbye old girl it's been fun while it lasted.

All polished up and waxed.

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Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Quick question [at work, using phone]. I'm compiling my Christmas list (yay!) and I'm asking for new gauges. What is the tach ratio on these bikes? I'm looking at the mini ones from DCC. Also, what length in the rear shocks can I run?

Since I'm here, I've been SLOWLY working on the gas tank. Cutting and glueing foam blocks takes patience and time. And working full time and being an engineer student full time, well I just don't have a lot of spare time.
 
So you bought a CM400 / CB400T, now what...(46+ Build Links!)

The mini dcc ones seem to work fine or close enough whatever the "common" ratio is. I'm also on a phone and can't look it up right now at work.

As for rear shocks that's up to you really. That back girder where the shock mounts can either be cut out and you weld a mount to the frame, or move the mount somewhere else on that girder. I slammed mine with 10s. But that also is going to depend on your rear fender and tire/wheel you are gonna run. If you slam it with stock mags. You may have to lower the front end a bit so either cut the forks down (which is a bit of a pain) or go ghetto like they did on walking deads triumph to fit the actor and just slide the fork legs up through the tree to get the right stance you are looking for

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I was just handed another 81 cm400 for free from my wife's boss. So that's a quick winter project. Put a new battery on it and it wanted to start, however he had gas in it from 1994 And had to clean and kreem the tank and totally tear apart the carbs. Going to try and start it tomorrow

I'm going to move the rear struts up a bit on this one, lose the front fender, all the bells and whistles, tracker seat, short rear fender and move it in April for a quick buck.

Anyone needs stock accessories or a clean stock seat. Get at me. We'll make a nice deal
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

hey guysm I had a quick question, i'm working on a 82 cb450 cafe project and just got ahold of my clip-on bars, now there's too much slack in the cables for the throttle to revert.. How are you guys rerouting the cable to make it work? any pics? I saw some shortened cables available from DCC, will those work?
 
So you bought a CM400 / CB400T, now what...(46+ Build Links!)

You can let the cable just dangle chopper style, or get a shorter cable. I had the same problem when I put drags on my wife's rd200. But it was all three cables since I don't have the benefit or hydraulic clutch or brakes on that little shit
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

i've heard of a couple guys saying you can also cut and solder if you know what you're doing. i've never soldered so i wouldn't trust my skills in soldering the brake cable back together after cutting a section out, because if it breaks your SOL. but search around for it if ya want.
 
So you bought a CM400 / CB400T, now what...(46+ Build Links!)

I think lowbrow has a DIY on it. But you should do it with a real iron and solder. It's not like a heavy duty radio shack set type of job although it might work too.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

I've been looking at ways to cut and make my own subframe so that the lines are better but I don't have near enough welding skills to trust the safety and integrity of it. Also, the fork tubes won't slide through the upper tree. I was thinking about a little longer shock in the back to give it that aggressive stance. So I was wondering what the limits were.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Forks wont go through the triple as the top nut hold the fork into the top triple you can swap the triple for the cm400 or even a cx500 upper and lower tree and that will allow you to drop the forks through hope that helps
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

I've got a little predicament, I have wheels off a 400f. And the front wheel is wider and can't be centered because of the width. Would getting slightly bigger/wider triple trees be easier than doing a fork swap off of a different bike?
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

babyjesus said:
hey guysm I had a quick question, i'm working on a 82 cb450 cafe project and just got ahold of my clip-on bars, now there's too much slack in the cables for the throttle to revert.. How are you guys rerouting the cable to make it work? any pics? I saw some shortened cables available from DCC, will those work?
Click to expand...

Is this actually a problem when you put lower bars on these things? I threw some drag bars on mine just for fun and took it for a zip.. It was like I had cruise control I had to pull the clutch in a few times when i needed to slow down and it revved right up. I jus assumed it needed adjusting or the throttle needed to be greased.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Come to think of it my front brakes are really tight as well. Hmmmm.. What's the solution???
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Oil all your cables if you haven't tried that. Detach the handlebar end of your cables and raise them on an angle while letting lubrication go all the way through the housing. If that doesn't help then definitely check for kinks or tight bends that are puttin a lot of friction on the cables. And if you have a disc front brake, check the fluid level to make sure the brake line didn't kink or get squeezed.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

Hello, I bought a 1982 Honda CM450c in November for $500. The bike runs great and I'm a school teacher so my kids loved it. I wanted to strip the bike down and turn it into a cafe racer. I've started a blog that goes into details and I show my students every week the progress I've made. My thought is if they don't learn math...then at least they will learn how to build a motorcycle!! ;)

Tell me what you think.
www.morchatcaferacer.wordpress.com

I've been looking on this forum for great ideas and the info is amazing. There are so many talented people that contribute to this forum. Thanks for letting me be a part of it.
 
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)

I like ur blog dmorchat I'll be following it :)


what have you guys found for aftermarket rear shocks for these bikes mines a 13" Clevis to clevis .. Having a tough time finding these shocks and mine are kaput

Devon
 
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