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Messages - Oddjob

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3046
Project Board / Re: 1977 CB750F2 Restoration
« on: September 16, 2022, 02:44:11 PM »
I have a couple of pairs of F2 ears, one pair NOS. They do look like F2 ears to me, if you need to confirm measure the distance from the top of the collar to the top of the tube.

3047
Misc / Open / Re: New SOHC addition
« on: September 16, 2022, 02:38:42 PM »
It was primarily bought for my son. He's a sort of pretend Hells Angel, member of a pub bike club, has a nickname "Joker" badge on the front of a denim cutdown etc. However he has said it's not really his cup of tea and TBH it's not mine either, I just saw it and thought it looked really good, paint scheme suits it, it's got the retro bike look, it's got a black engine and I love black engines, it's got chrome and I love chrome. It doesn't tick all my boxes but it ticks enough that I'll give it a go and see if I like it, if not I'll move it on and most likely make a profit.

3048
Project Board / Re: 1975 CB 400 Four - Restoration
« on: September 16, 2022, 06:59:02 AM »
Why is the fuel line routed like that?

3049
CB500/550 / Re: 1972 500 K1 question?
« on: September 16, 2022, 06:56:52 AM »
Yeah, essentially the same I’d say Steve. Good link though as it’s a UK seller. .

3051
Misc / Open / Re: New SOHC addition
« on: September 15, 2022, 11:38:43 PM »
You're too grumpy for a son, a Dad yes  ;D ;D ;D

3053
Misc / Open / Re: Racing a <500cc bike - best option?
« on: September 15, 2022, 11:30:21 PM »
Lots of people in the UK seem to race the CB450, the apparently go extremely well for such an old engine. It's cheap, it's narrow so no clearance problem like a flat four has, and only having 2 cylinders it's cheaper to service and maintain.

3054
Misc / Open / Re: Air box top cover on a 500
« on: September 15, 2022, 11:26:08 PM »
Might have been Rich.

3055
CB500/550 / Re: 1972 500 K1 question?
« on: September 15, 2022, 11:25:13 PM »
You can see one on the end of the ramp in this video, the storage idea is brilliant but nobody has been able to find out any more details about it yet.

https://www.youtube.com/watch?v=5Z6_4JD8dDw&t=57s

3056
Misc / Open / Re: New SOHC addition
« on: September 15, 2022, 11:21:47 PM »
Wow, that's a change of direction.
Do we call it a twin single or double single. (OHC)?

Phil

It's reputably a single overhead cam for both cylinders, along with hydraulic tappets, self adjusting camchain, shaft drive and CDI. Just change the oil and filters and it's good to go.

59K milage and tax free in 4 years. If I don't like it I'll sell it on, cost me £1850, which could be a bargain but we'll need to see it run first. If it runs ok I'm probably not going to do anything to it except ride it, if my lad passes his test I'll give it to him as a present.

3057
Misc / Open / New SOHC addition
« on: September 15, 2022, 05:45:18 PM »
I didn't ever think I'd buy a cruiser but there's just something about this bike that appeals to me. Spotted it on Dave Silver used bikes.





It was a runner in the states and it looks like it's been very well cared for. 59000 miles.

Taking delivery in a few weeks.

3058
Project Board / Re: My new project a CB500 K1 circa 1972.
« on: September 15, 2022, 04:56:17 PM »
Ted, the 500 is my baby, I've done things to 500s that most others haven't even thought of. One of the things is fitting the centre stand with a grease nipple. Now the tube of the centre stand isn't thick enough to take a nipple without it fouling the pin, so what I did was drill a 5mm hole central on the tube, in a location that I knew I could get a grease gun to when it's fitted and where there was little chance of it fouling anything. Tap the hole to 6mm and flat spot the tube, insert a 6mm bolt with a nut on, flanged might work better but mine was just a plain nut. Thread the bolt into the hole and then tighten the nut down onto the flat spot. Get it welded there, a seam weld so grease doesn't escape when the pressure is on. Remove the bolt after and using a 6mm copper washer fit a grease nipple. A few quick squeezes once a year and the stand will never seize again, it rolls on and off like it's not even there. You can do the hole 4mm and use a 5mm nipple if you so choose and stainless nipples are now readily available when they weren't when I first did this back in the late 70s.

I fitted grease nipples all over the bike, the rear brake pivot tube for the brake lever has one, both front caliper mounts have them, swinging arm got a central grease nipple to improve the way the bushes got greased, even the headstock got one, I can grease the taper rollers without taking the bike apart.

I have further plans to improve the side stand and make it cut the engine out if you set off with it down (and you will do this, everyone has), lots of ideas, some good, some just weird.

3059
Project Board / Re: My new project a CB500 K1 circa 1972.
« on: September 15, 2022, 03:42:02 PM »
Did a massive reply yesterday on my Ipad, was just about to press send when it just went off. 75% battery power and it said the battery was flat. Put it on charge and of course the reply is now gone.

So here goes again.

Test rig. Used my old genuine Honda handlebars, a genuine left hand switchgear and some old but good throttle cables. For the carbs I just used the frame with the butterfly on as carbs are not needed for this. I marked everything up at rest and then remarked when throttle fully open. Check reply 137 on this thread. http://www.sohc.co.uk/index.php/topic,19895.135.html It explains what I did and what the results were.

20 miles would be good to do the test run on the 500 Ted, but hey ho, it's your money and I can see why postage may be better.

Whilst you've got the left hand switchgear open have you checked to see if the throttle clamp is working. This is the large chrome screw under the switch and between the cables, when you wind it in the throttle stiffens up, which I can see you frowning thinking why would I want that, well on a motorway you can wind this screw in as you ride and the throttle will stay open at a set speed, all that pressure of holding the throttle open goes away, in case you need to shut off the throttle you just twist it and the return cable closes the throttle against the pressure of the clamp. The screw should have a chrome spring on but there is an internal ramp? which usually falls out when you open the switchgear and rolls away and you never notice it. Check to see if this ramp is there. It's a very handy bit of kit, can be used to set the tickover at 3000 to check the advance retard mechanism for instance, which is what Honda fitted it for IIRC. The 750 and the 500 got this clamp, the 550 did not. However everything on the 550 switchgear is there except the drilling for the screw, I converted my 550 switchgear to fit one as I use it a lot.

3060
CB500/550 / Re: 1972 500 K1 question?
« on: September 15, 2022, 03:21:07 PM »
Ted why not think about one of those ramps which hold the front wheel in place, you push the wheel against it and it sort of rocks over and holds the bike upright, to remove all you do is wheel it backwards. You can fit them on the end of workbenches.

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