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Newbie to the forums

Just got a 1978 CB750K. Rode it home but it ran a little rough. No idea about previous maintenance. Maybe have to go through the carbs at least. Any suggestions appreciated. One thing I do plan to do is change the exhaust. It has 4 pipes and am thinking about 4 into 2 or 4 into 1. Again any suggestions or opinions appreciated.

1978 CB750K
SWVA

seestheday

Re: Newbie to the forums

If the 4-4 pipes are stock and in good shape they might be worth more than you paid for the whole bike.

1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

My wife's recipe website that I'm trying to help promote: Strawberries for supper. Yes, I am a lucky man.

My cb750 video site

Re: Newbie to the forums

Thanks for replying to my post. They are not stock, they're shorter and turn out, no muffler. They are loose on both ends. If I can get them tight and no leaks at the cylinder I might keep them on. Look ok and sound good. But will a Honda shop have seals that fit aftermarket pipes? Or will I have trouble finding them?

1978 CB750K
SWVA

seestheday

Re: Newbie to the forums

This post was updated on .

I only know the dohc exhaust fit well, someone else will have to chime in for how to get the social pipes to fit tight. I'm pretty sure you can do it easily though.

Re: Newbie to the forums

probably can just got the bike and all this cold weather hit so I haven't really started on it yet

1978 CB750K
SWVA

shultz_1978

Re: Newbie to the forums

Can you get some pictures of the pipes and at the head?

Simple if some one else can, why can't I
Jamie

TOOLS1

Re: Newbie to the forums

Administrator

In reply to this post by dc

All the Hondas' use the same copper O-ring to seal the exhaust. Most Honda shops stock these. They are around $3.00 a piece.
TOOLS

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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)

seestheday

Re: Newbie to the forums

My pipes were loose until I turned around the half-moons the correct way. I'm guessing the issue was the reason why the PO had stuffed 3 copper crush washers in there.

Like I said though, my pipes are DOHC, and I recall that the SOHC ones mount a little differently.

Re: Newbie to the forums

Here's a pic of my CB750K.

1978 CB750K
SWVA

Re: Newbie to the forums

One more.

1978 CB750K
SWVA

shinyribs

Re: Newbie to the forums

Administrator

Hey dc,welcome! Looks like you have quite alot of room to work in your shop there! I have some how accumulated a bunch of those copper exhaust washers. If you need some holler at me and I'll slip them in the mail. See ya around...

motogrady

Re: Newbie to the forums

Administrator

Man, that can be one good looking bike you have there.
Nice enough not to go the cafe' route imo.

Congrat's and welcome to the joint, good luck with the Honda.

Re: Newbie to the forums

Thanks. I won't be making a cafe out of it. I like the way they look but I'll keep this one like it is.

1978 CB750K
SWVA

Re: Newbie to the forums

Anybody know where I can get an ignition switch and tank and seat locks?

1978 CB750K
SWVA