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Messages - Seamus

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601
CB750 / Re: Take its head off??
« on: March 23, 2009, 12:06:03 PM »
Thanks for the info and thoughts. I guess cleaning the head would be easier on the bench. I have a new tacho seal., just have to get a head gasket. Will the barrels be OK or should these come off as well?

Cheers

Seamus

602
CB750 / Take its head off??
« on: March 22, 2009, 08:45:00 PM »
I have taken the engine out of the frame to get some powder coating done and was trying to decide weather to take the head off as I have to clean things up and respray the engine. The unit was running well prior to removal, but whilst the frame is away, should I whip off the head and barrels as it would be easy to bead blast them and repaint in sections, rather than a whole engine.

Thoughts please or have I already talked myself into this.

Cheers

Seamus

603
CB500/550 / Re: cylinder head removal
« on: March 10, 2009, 12:32:37 PM »
Download  from here:  http://www.sohc4.net/files/HSMCB500550.pdf

A good start. I did a 550 head a few years ago, and the head came off fairly easily. Have a look in the (downloaded) manual and you will find a diagram of the head bolt positions. I think you may have to remove the cam mounts to find some of the fixings. Note also that there are two fixings (front and back) that have to be removed from under the head (I mean from the cylinder barrel side)

Hope this helps

Good luck

Seamus

604
CB750 / Re: Disc interchanageability
« on: March 05, 2009, 10:42:58 PM »
Measured the rims and they are both the same. Guess it was a replacement disc

Thanks
for the help

Seamus

605
CB750 / Re: Disc interchanageability
« on: March 03, 2009, 05:22:47 PM »
Thanks for the info. Just rebuilt the front wheel with a new rim (750). I still have the old one and will measure when I get home for comparison.

Was the hub the same for both bikes? as the speedo plate and drive etc match the workshop manual diagrams.

Cheers

Seamus

606
CB750 / Re: Stripping the carbs down
« on: March 03, 2009, 12:20:19 PM »
Nice job Vince. Those carbs look really good. A bit of inspiration for me to make mine look as clean.
Cheers

Seamus

607
CB750 / Re: Disc interchanageability
« on: March 02, 2009, 10:40:06 PM »
Thanks for the info. I will have to check when I start the rebuild. The frame and other bits are off being powder coated and some other bits being chromed.

I may be able to test the disc on the wheel against the fork leg with the caliper in position.

Apreciate the help

Seamus

608
CB750 / Re: Disc interchanageability
« on: March 02, 2009, 07:43:15 PM »
Thanks for the reply. I measured the discs, my one is 275mm and the replacement is 295mm.

The picture shows the setup before I took it all to bits.
Does the disc look small in this pic?

609
CB750 / Disc interchanageability
« on: March 02, 2009, 09:36:52 AM »
Probably not even a word, but i hope you know what I mean.

I bought another disc for my K1 and it is a good bit bigger in diameter. I think it was from a 76 bike. I thought that the front disc was the same throughout the K series. Did Honda change the disc size at some time? Any idea which models had yje larger disc?

Thanks

Seamus

610
CB500/550 / Re: Swing Arm Fitment
« on: February 12, 2009, 08:23:07 PM »
May be worth looking here  http://www.motogrid.com/pages/parts/viewbybrand/7/honda.aspx to check the part numbers. It is possible that they are the same

611
CB750 / Re: 750 K2 Rebuild
« on: February 12, 2009, 08:08:39 PM »
Hi Sean

Not sure if this link is worth a look ( http://pittedforks.com/ ) Based in Luton in the UK. They have a good reputation for rechrome and regrinding te forks to the original size

612
CB750 / Re: Stripping the carbs down
« on: February 05, 2009, 01:43:05 PM »
Alan

Have a look at this  post (http://www.sohc.co.uk/index.php?topic=1955.0)

It may help.

Cheers

Seamus

613
CB750 / Re: Looking for a connector block
« on: January 30, 2009, 04:42:52 PM »
Thanks all. Any likelehood of them being at the Donnington Classic Bike Show next weekend?

I have to order a fuse holder/box from Dave S nd will sort out the wiring. There is a very good chance that I will strip the bike further to have a good look at the paint on the frame. I will probably have to respray or powder coat.

Thanks again

Seamus

614
CB750 / Looking for a connector block
« on: January 29, 2009, 10:06:26 PM »
Still in the throes of dismantling my K1 and have removed the battery tray and other brackets for renovation.
I noticed that I did not have a fuse box  ??? and also that the connecting plug to the rectifier had been removed and the wires soldered together.
Not much chance of buying these seperately without replacing the rectifier and harness. (Both basically OK)
Anyone got these (or either half) lying around that they wish to part with?

Please pm with info. I am happy to pay for them

Cheers

Seamus

615
CB750 / Re: Smokey 750
« on: January 29, 2009, 10:02:06 PM »
Still don't know much about the engines on these, but could it be posible that a breather pipe has become trapped? Surprised that it just developed.
When you had the engine apart, did you check the valve stem seals?
Also I have known glazed bores to cause this problem on other engines, but again, I suspect that this would happen gradually.

Any use??

Seamus

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