Author Topic: 1976 CB400F  (Read 1244 times)

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Offline Wiinberg

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1976 CB400F
« on: September 01, 2017, 03:59:23 PM »
Hi all, thought i'd start a thread with my new winter project. Bought this 400F a couple of weeks ago for 1200 pounds (that's about the cheapest possible for 400F in Denmark). It has 26.000 miles on it and in need of a lot of TLC. Also gonna be opening it up, as the cam chain rattles like a hunting party of rattle snakes. Who knows how long it has been doing that.

This is my second 400F, and this one feels a bit under powered. So yet another reason to have a look on the engine. Going to check the compression before disassembly.

Not sure what the path is with this one. I am strongly considering a 466 kit, and also toying with the idea of dual disc up front. I'll see what the future brings. And to the most important part, some pictures.


Offline MoMo

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Re: 1976 CB400F
« Reply #1 on: September 01, 2017, 06:37:37 PM »
A 400 four touring bike ???   Back in the 70's I did similar mods to a 400 I had as it was my only year 'round transportation and the fairing, rack and bags were a necessity .  You have your work cut out but it looks as though there is a good foundation there.  >>>Larry

Offline Wiinberg

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Re: 1976 CB400F
« Reply #2 on: September 09, 2017, 02:22:43 PM »
Yeah, it looks kind of funky.
Yes, and bit more work than i first thought, but that's the way it is with these bikes. Took the tank and rear fender off, noticed a couple of red wires that shouldn't be there. Traced them to under the tank where i found a big birdsnest of wires coupled with two relays and then on to the head light bucket. Have no idea what they are for. I hate electrics. My last 400 i replaced the whole harness, already thinking about doing it on this one too.

The bike has been torn down now, and i'm gonna get started on the engine. There where several different types of bolts on the valve cover, first bad sign. Some of the bolts came out with pieces of the threads, and a couple have been helicoiled. Not what i wanted to see. One of the cylinder studs snapped too.

The cam chain tensioner has been eaten along with some of the casing, and the primary chain is worn out. So much for a decent mileage easy resto bike.

Offline MoMo

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Re: 1976 CB400F
« Reply #3 on: September 09, 2017, 03:18:21 PM »
Ugly but pretty typical.  Keep on truckin'....