[Trefmawr]

So I finally got a bike today. A real basket case, a 1979 Honda CB750 L (10th Anniversary) for $100. Not a bad price. So here's what's wrong with it:

Needs a valve cover + valves, front master cylinder, engine mounting hardware, carbs, and exhaust.

A few more bits and pieces here and there as well. I knew what I was getting into when I bought it, as I wanted to really know my bike. And what better way to do this, than to basically build the damn thing!

I'll take some pics in a few, and post em up here so you guys can see what I'm working with (and prolly how stupid I am).

So in closing, please bear with me as I assault you all with questions that will be obvious and simple to you, but challengeing to this noob.

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Le Canuck

 

[texmawby]

hooray for tref! congrats mate!

tex

"who's scooter is that?"
"joe clancy's"
"where's joe clancy?"
"sleeping!"

 

[Geeto67]

quote:
So I finally got a bike today. A real basket case, a 1979 Honda CB750 L (10th Anniversary) for $100. Not a bad price. So here's what's wrong with it:

Needs a valve cover + valves, front master cylinder, engine mounting hardware, carbs, and exhaust.

A few more bits and pieces here and there as well. I knew what I was getting into when I bought it, as I wanted to really know my bike. And what better way to do this, than to basically build the damn thing!

I'll take some pics in a few, and post em up here so you guys can see what I'm working with (and prolly how stupid I am).

So in closing, please bear with me as I assault you all with questions that will be obvious and simple to you, but challengeing to this noob.

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Le Canuck

Congrads dude...I always liked those aniversary 750s despite my general loathing of all dual cam 750s that aren't F models.

Ugh!, a dual cam honda motor that needs a top end?!?!! The Horror of it all!!!! (just kidding....sort of)

Unless the head you have is fresh from the machine shop if you need valves you will need a head too. The original dual cam hondas suffered from weak top ends, mostly leading to cam chain failure and sawing the block in half. If your bike needs valves you NEED to go through that whole engine and make sure nothing else is damaged by what ever caused it to need valves. My honest recomendation is to find a running and good condition cb750F or cb900F motor and bolt that into the frame instead. I don't remember if the Aniversary model is chain ro shaft drive (the K and F are chain, the C is a shaft, I am pretty sure the Anniversary is a K bike). Wiseco still makes a big bore kit for the Dual cams (750 and 900) but don't confuse their big bore Dual cam kit for their single cam 836cc kit.

Anyway, best of luck.

 

[Trefmawr]

Yeah, I found a guy in Alberta who's gonna sell me the whole top half of his old 79 CB750K that's he's parting out, so I'm getting good stuff from the cylinder head and upwards, basically all the pieces. So far though, I've only seen one whole replacement engine for sale, but it was in Florida and he wouldn't crate it.

When my honda manual gets here, I'm going to be going through the entire engine and cleaning every piece, replacing what needs to be, and then throwing it back together. It's going to take a while, especially since I'm new at this, but it will be worth it in the end. I'll also be keeping my eyes peeled for replacement engines anywhere remotely close to me. You said the CB900 would work too? Interesting.

Oh yeah, and the CB750L is pretty much exactly the same as the K, minus the special badges and accessories I believe. I used Parts Fish to compare the two frames, engines, etc. and they were in the same menu.

I took some pics today, with the seat and the tank off, so I'll put them on a site and link them shortly.

Thanks guys, I'll keep you posted.

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Le Canuck

 

[Geeto67]

quote:


You said the CB900 would work too? Interesting.


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Le Canuck

With modified mounts a cb1100F engine would work as well. Actuall the hot setup for a cb750F guy is to build a Super F, a cb750F with an 1100F motor bored to 1123ccs. I am pretty sure you have to use the 900 mounts to get a 900F into the 750 frame as the 900 uses outside/inside dogbones for the front mount while the 750 uses offset motor plates.

If you want to build the ultimate cafe racer, find a way to convert the 900C engine to chain drive and drop that in. the 900C shaftie has a 10 speed gearbox( a 5 speed conventional gearbox with an underdrive overdrive high/low splitter).

 

[Trefmawr]

Haha, that might be a little too much for me. I wanna try and keep it simple (well as simple as it gets) for now. Get it up and running, then start doing some mods.

If anyone knows of any complete working 750 engines though (79-81) please tell me about them, just in case I'm looking at a full replacement.

Here's a link to my flickr account, where I put up some pics of the steed.

Pics

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Le Canuck

Edited by - Trefmawr on Apr 14 2006 05:53:21 AM

 

[Trefmawr]

I get bored and often sketch out what I want my bike to look like. I usually use photoshop. Anyone else do stuff like this?

I love the cream, but the matte black is just so...mean.


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Le Canuck

 

[FR]

Tref, that's neato. Quit dreaming and start working! You of all people should know it's a short riding season. You don't have time for photoshop, you've got a bike to build. Now get back out there and do your job, soldier!

FR

 

[n/a]

try these guys. they have a bunch of japanese parts and such.
http://mcsalvage.com/mcsalvage/coopers.htm

Champ

 

[krapfever]

Those photochops kinda look to me like an old Tracey Body kit. Tank/seat/sidecovers/tail were all one fiberglass piece. Serious geek points to you if you can find one (come to think of it, they may have only made body kits for the SOHC CB's (if at all -- I've only seen them for KZ's). Search around (try different spellings of the same).

Honda go sideways!