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Discussion Starter · #1 ·
Well, I am attempting to build a café out of a perfectly fine CB450K7. Sometimes I feel bad for destroying such a decent bike but it’s mine to do with what I please. (I keep telling myself that) It’s my first build so mistakes and learning the hard way are the theme for this bike. I’ll let the pictures do the talking as I am typing this in word… (I can’t spell for $#!^)
[attachment=4:3tgg02yn]IMG_0678.jpg[/attachment:3tgg02yn]
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[attachment=1:3tgg02yn]CIMG8455.JPG[/attachment:3tgg02yn]
[attachment=0:3tgg02yn]CIMG8489.JPG[/attachment:3tgg02yn]
 

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Discussion Starter · #2 ·
Re: '74 CB450 cafe (Hopefull)

[attachment=3:2midd8n0]CIMG8520.JPG[/attachment:2midd8n0]
[attachment=4:2midd8n0]CIMG7531.JPG[/attachment:2midd8n0]
[attachment=2:2midd8n0]CIMG8586.JPG[/attachment:2midd8n0]
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[attachment=0:2midd8n0]CIMG8540.JPG[/attachment:2midd8n0]
I did the rings and had to replace the exhaust cam followers, cleaned the thing for hours and hours, put it back in the frame just to find out I "F'd" the cam chain by a tooth on the crank, rolled the intake cam a link w/o breaking the chain by pulling the cam bearings and the tensioner out, doing the same to the exhaust cam tomarow. I'll have lots of left over parts like the tank and matching side covers, I'll post a list in the 'parts section' later. I am looking for a seat pan if anyone has one.
Yes, it runs with two $3 copasitors in place of the battery, lights flicker at idol and no electric start, but it runs (ran) fine.
More to come,
Thanks for all the advice, feel free to comment, I can take critisisum too. (like I said before "I can't spell for $#!^") Bear with me.
 

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Discussion Starter · #4 ·
Re: '74 CB450 cafe (Hopefull)

Good news & BAD news.

Good news;
My rearsets came today and look great. Tarozzi folding universals. Can't find many options for the CB450 in the rearset isle, I'll make these work.
[attachment=1:30inq4cs]CIMG8649.JPG[/attachment:30inq4cs]

My K&N pods came today too. 49mm ID, fit great, very happy.
[attachment=0:30inq4cs]CIMG8644.JPG[/attachment:30inq4cs]
The battery will be relocated (if I decide to use one at all), I was just useing it to check my wireing harness instalation. I saw in some other posts where someone was wondering if the pod filters would clear the battery box. The box fits between the filters but is off set to the right when in the original place and hits the right filter, It's doable but it would rub.

BAD NEWS;
I finally got my cam chain all lind up but in the process managed to bend my right exhaust valve... Stupid, stupid, stupid! Total rookie mistake. I need new valves, but thats okay because I can just slip them in while I have the head off to fix my compression prob- 150psi right; 50psi left!.!.!.
Put a little oil in the spark plug hole on the right and got 100psi. So not only do I have bent valves, but a ring problem to boot. Right? Well regardless, my inexperiance and inability to follow instructins is going to cost me time & money, again.
My plan is to get it bored out one over and do it all again. New pistons, rings & valves. I think I'll try that 'one spline off the torsion bar' trick while I'm at it.

Back to square one... Pulling it back out tomarow :|
 

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Re: '74 CB450 cafe (Hopefull)

The Tarozzis work nicely if you're a long legged guy.. Of course I have no "road time" with mine as of yet, but from riding other more modern streetbikes and comparing the riding position to where I have mine mounted, I think it feels ok.. I sure hope it ends up being acceptable.. :)


GB :mrgreen:
 

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Discussion Starter · #7 ·
Re: '74 CB450 cafe (Hopefull)

Threw the rearsets and pods on just to see how thing are going to work out. I'm going to have to figure out somthing for the pipes, (or build a bracket and relocate the rearsets) kinda want to just slap in a baffle and a directional pointed straight down... kinda ratty though...
[attachment=0:107avh30]CIMG8655.JPG[/attachment:107avh30]
Well, I'm off to re-rebuild the motor... pray for me, I need thi$ to go right thi$ time.
 

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Re: '74 CB450 cafe (Hopefull)

Was setting the cam timing a difficult procedure? I printed out a sticky from the forum detailing the procedure for setting the cam timing, its pretty straight forward, much like a car, but ive never attempted it. Today will be my first. Bike looks good tho. well done
-Dan from south jersey
 

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Re: '74 CB450 cafe (Hopefull)

There is NO need to alter the torsion bars on a "streetable" engine.....
 

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Re: '74 CB450 cafe (Hopefull)

l5cygx said:
Hey Bird76Mojo, got any pics of your K7? I'd like to see it.
It's still in pieces as it's been forever it seems. A lay-off kinda of put it on the back burner, at least until I get a shed/workshop.. I mounted my rearsets in the exact same location and a lot of people say that it's a bad spot for them. They feel ok to me but only time on the street will tell.. They didn't interfere with my exhaust because I'm running an almost NOS Hooker 2-1.. :D


GB :mrgreen:
 

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Discussion Starter · #11 ·
Re: '74 CB450 cafe (Hopefull)

Thanks for the advice guys. I think I'll leave the torsin bars alone untill I have a little more experiance.
The cam chain was done before I found this forum and the PO had put his own timming mark on the exhaust cam that threw me off, round two should go much smoother.
As far as the placement of the rearsets, I rode with the pasenger pegs only for a month 20mi a day and loved it (I'm 6'1") straight pipes, got a ticket. so I'd rather change the exhaust than move the pegs.
Spent yesterday pulling her back apart. Put tapered bearings in the steering head, they feel great! Spent all night making some face plates for my speedo and tach.
[attachment=2:3uk402a8]CIMG8658.JPG[/attachment:3uk402a8]
[attachment=1:3uk402a8]Picture 010 copy.jpg[/attachment:3uk402a8]
[attachment=0:3uk402a8]CIMG8659.JPG[/attachment:3uk402a8]
I'll be working on odds and ends untill I decide how much to have it bored out... .25, .75 or 3mm. Sugestions?

Thanks,
Mat
 

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Re: '74 CB450 cafe (Hopefull)

I would let the machinest check and determine how much will HAVE to be removed to clean it up, then buy the appropriate sized pistons and rings and let him fit the cylinders to them...
 

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Discussion Starter · #14 ·
Re: '74 CB450 cafe (Hopefull)

Finally got my new pistons, rings & valves. Honda has my cylinders, going out to .75 over. I'll be laping the valves in while I wait. I'm at a weird point where I just stare at the thing and have a million things running through my head! Need beer...
It was 82 and sunny today in socal... I was almost in tears driving my truck to work as bikes of all flavors flew past me in traffic. Can't wait to get this thing back on the road for the summer. I think since everything is taking longer than I had planed, I'm going to hold off on a few cosmetics till next winter.
I NEED MY BIKE BACK!
I might go with omars 2 into 1 exhaust, but till then, I'm still looking for a baffle that will slip into the header pipes of a CB450K7 to cut the noise a bit (can't afford another ticket). Any ideas? Ron told me an old volkswagon exhaust tip might work... still looking into that.
More pics to come... Here is some amature porn for now.

Mat

[attachment=0:2jrlmecl]CIMG8554.JPG[/attachment:2jrlmecl]
 

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Re: '74 CB450 cafe (Hopefull)

GB, i don't think mat's "G" key works on his keyboard. :lol: good thing you posted that for him...

just kidding mat, nice looking roller, keep it up. i lost my center stand a while ago and have been working on it since with no complaints. maybe something to consider for your lighter weight c-racer?
 

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Discussion Starter · #17 ·
Re: '74 CB450 cafe (Hopefull)

She runs, (thanks to all the help from everyone here). She is in kind of a mock up stage while I figure out a color scheme (despite the fact I had a clear vision when I started) I don't think I'll be happy unless I get the tank professionally painted. I have a seat pan on the way from neurot999 (great guy by the way) for my cafe style seat. I want to move my rear sets up and forward a few inches (ya, you were right). I need to get a 2-1 exhaust built (I have a mig welder that I'm actually pretty handy with but have no idea where to start) unless GB decides to sell me his Hooker :cool: ... Other than that I'm done! :lol: ... Plus a few odds and ends. :D
I think I'm falling into a "Hurry and get it rideable, you can fix that later" mentality, and I'm guna regret it later. But I really do need this thing on the road, It is (was) my commuter.
[attachment=2:1zpth1bh]CIMG8667.JPG[/attachment:1zpth1bh]
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That's my neighbor pointing out everything I did wrong... He's really good with colors if you know what I mean :roll:

So the saga continues, have'nt posted step by step because my methods are far inferior to most on this site, but slowly I'm making progress (I think).
Let me know what you think (I have thick skin so be honest).

Mat

P.S. GGGGGGGGGGGG ;)
 

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Re: '74 CB450 cafe (Hopefull)

Looks good. You're definitely gonna have to do something about that exhaust huh.. If not you're gonna have a lot of shoes with melted toes.. :shock:

Sure, I'll sell you the Hooker header. Paypal me $1100.00 US dollars and I'll get it sent out to ya. ;)


GB :mrgreen:
 

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Discussion Starter · #19 ·
Re: '74 CB450 cafe (Hopefull)

Got my seat done. Tank is at the paint shop. Exhaust is in the works.
[attachment=1:2k2gzp8l]CIMG8680.JPG[/attachment:2k2gzp8l]
[attachment=0:2k2gzp8l]CIMG8678.JPG[/attachment:2k2gzp8l]
 

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Re: '74 CB450 cafe (Hopefull)

It's turning out beautiful!
And Halo is a great game! :D
Also i have the exact same compression.
left 50
right 150...
thing is, is that the rings are fine... :|
Anyways good luck, looking forward to the finished bike!
 
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