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1  General Category / Tech Corner / Re: Headstock Bearings on: July 26, 2017, 11:23:46 PM
Nearly forgot, you can use a short piece of plastic water pipe to drift the new bottom bearing into place rather than hammering the bugger. It's not rocket science, but you don't need specialist tools either. You can make them from scrap stuff.

Also, if you can find some small pieces of real hardwood such as mahogany (not the shite they call mahogany these days), you can fashion a two part mandrel to remove the inner lower unit from the head tube. I fitted a new bush to the rear suspension arm of a Ford with a pair of stepped mandrels made of hardwood (using a pilar drill and counterbore cutters) and an old engineers vice.

A note in the threaded bar mandrel idea:

The threads on threaded bar are rolled and nasty. Use the biggest diameter you can find that will fit. This will give you greater control and help keep the pulling process squarer. You'll also have greater mechanical advantage and will be able to tell if the bearing is going in straight. 20-30mm would be good. Clean down to the roots of at least the length of thread you're going to use really well, then run a similarly cleaned nut all the way down the area where you're going to be tightening it, then assemble the jig and lubricate the thread. That's as good as a specialist tool for less than 10.

2  General Category / Tech Corner / Re: Headstock Bearings on: July 26, 2017, 10:32:05 PM
Thanks guys,

Delboy's Garage has a YouTube video that I just watched and it looks relatively simple. It was on a Kawasiki, I'm guessing it's a similar job on the CB-1. Not one for doing in the rain though.

https://www.youtube.com/watch?v=yvgIRuRHSrQ



Delboy is fairly good filterMan, but some of his methods are as dodgy as his namesake, namely the way he abuses the handles of his screwdrivers and his use of emery paper without them thoroughly cleaning not only the area he's just rubbed, but the full length of the tube below. He's literally just introduced one the most abrasive materials into a bearing environment, absolutely guaranteeing to shorten the life of those bearings.

Nylon mallets used to be very expensive, and were developed specially for the aircraft industry, but these days they're much more easily available. There are two basic sizes. They have nylon handles, steel heads and nylon faces screwed into them. Grab one. It will literally solve many problems like those you'll encounter here.

When drifting off the lower bearing centre ring from the tube next to the lower yoke, once you've got a thin wedge/screwdriver in there, slip a piece of copper or brass (an opened up piece of coppe water pipe or the earth terminal from a scrap 13 amp plug) down, and then use the same wedge/screwdriver again. This will help prevent the damage to the seat. You can add thicknesses of steel next to the copper or brass, and then you never need to progress to a rough arsed builder's chisel.

Actually, the more I think about that vid, the more I cringe at the prospect of finding a bike he's worked on.

a_morti's Haynes tip is brilliant. Anything that can be banged in by a monkey, can be better drifted in using a well fitting mandrel (specialist tool or something you turn on a lathe), or much better drawn in using a threaded bar, four penny washers, two small squares of plywood with holes in the centre, the old bearings and two nuts. The extra washers are to create a bearing surface for the pulling process. Turn them so their smooth edges are facing each other. Makes all the difference.

No, I'm not about to start making vids Wink But I will post a photo when I make my next one.

Pack the area above the bottom bearing with grease. It will feed down in warm weather and protect the most vulnerable area for the longest. Check your forks after 50-100 miles in the way he describes. They might need tightening a little. And don't let that hot chick from California do stunts on your bike Wink
3  General Category / Tech Corner / Re: Headstock Bearings on: July 26, 2017, 12:18:37 PM
Hi Guys,

I took my bike for it's MOT test today and it passed with no major problems \o/. The tester did note that I have slight play in the headstock bearings. He is correct, you can just feel it although it's not severe. It probably needs a new set putting in soon.

I can do most things but I've never done this on any bike, is it something I can do at home, in my back yard, probably in the rain, without specialist tools?

And does anyone know if this is the correct bearings I should order? I guess headrace = headstock in the description?

http://www.wemoto.com/bikes/honda/cb-1_cb_400_f__nc27_japanese_market/89-90/picture/tapered_headrace_bearing_set_by_all_balls_usa/

Cheers

This guy seems to know his onions filterMan

https://m.youtube.com/watch?v=CRVhPmb7qXo

Others here will have actual specific hands on experience of this job on the CB-1. But he's the cautious type who gives you the general heads up on the job you may need to do. Dust free environment would be best of course. Do it in a mini marquee on the lawn Wink I'm only half jesting. It's what competition teams do. I've got an Ezee-up that's great for such work. The latest equivalent is a seasonal item at Costco - best wholesale outlet in UK. Costs about 25 a year to be a member.

4  General Category / Tech Corner / Re: New bike a Republican? (aka my bike doesn't lean LEFT). on: July 21, 2017, 01:48:54 PM
perhaps the whole "rust in tank" issues also have a lot to do with where in the world you live.
Doesn't it rain all the time in the UK? isn't it always "muggy and dreary" there? Here where I live, I've never seen a tank with rust in it unless it's by the beach or comes from, well....the UK.

Possibly, but despite the fact that the UK is an island nation, or perhaps more accurately, a disunited kingdom of islands, the weather does actually vary a great deal from area to area. Weather modification tends to be the predominant cause of the low overcast gloom of which you speak. Plus, Japan is also an island nation that has its fair share of rain.

Quote
I'm sure the seals on the tank were "supposed" to work fine under 'normal weather environmental' conditions but in places where it's high levels of humidity, not sure materials were made to operate properly and be maintained properly in those places.

Are you? If you look at the design it's actually wide open to the elements at all times. Whilst the hinged fuel cap seals the neck adequately via the spring loaded rubber washer, there's a significant gap all around the hinged locking cap and ring that's screwed to the tank. Now this wouldn't matter if there wasn't a drain off hole in the recess that houses the neck, for any fuel splashed outside the neck in that recess, to drain into the tank.

THAT'S how the water is capable of getting in unimpeded. I'm guessing quantity of rain, general humidity, average temperature and how often bikes are ridden and stored in the rain all also play a part, as does the amount of water there is in the local fuel.

The way I figured this out was greatly assisted by my discovery of a very unhealthy layer of road dust in both my tanks. But in order to prove my theory, I watered my empty smurf tank with the locking cap fastened. Water got in as if invited by a gardener!

Some locking caps are actually more open. Indeed I've got one. Not sure which Honda it's off, possibly a Hawk or Super Four. More recent ones all appear to be a much tighter fit, possibly tight enough to resist water ingress. I'm attributing this to Honda also figuring out what the cause of rusty tanks is.

My solution is twofold. I'm applying for a visa to visit So-Cal with a view to finding a nicer climate for my little Honda. And while I'm waiting for the CIA guys in Barkley Square to perform their checks, and I obtain my TSA vaccinations, I'm going to add a dohnut shaped sponge to that recess to catch the water Wink

Quote
I lived in South Florida for most of my young/early adult lIfe.....and everything............"I MEAN EVERYTHING" there had mold, mildew, rust, corrosion issues....why? Because there's too much moisture in the air and materials such as rubber and metal don't like that too much.

Just my opinion but you know what they say..."with my opinion and 75cents you can buy a pack of gum".

A friend of mine died in Florida. Another friend invested half his savings in an aircraft business venture and lost the lot. Now I know what to blame for both... It was the mildew!!!!;)
5  General Category / Tech Corner / Re: New bike a Republican? (aka my bike doesn't lean LEFT). on: July 21, 2017, 05:38:50 AM
I went to start up my bike today. Full choke, push starter, started right up. Revs rose to 3k and I kept her there for 10 seconds. Tilted left, no change. WTH!?! Tried again. Steady idle. Tilted further to and fro trying to get 'er to stumble but she'd have none of it.

I realized the fuel cock was OFF so turned to ON and repeated motions. No change. After a minute or so on choke I saw the temp gauge bump so I started to ease off the choke to 50%. Idled fine. More rocking, etc. and no strange symptoms.

Popped open gas cap to see if there would be any change (vacuum maybe, who knows?). Nada. Lastly, set fuel cock to RES and no inking of change. Choke off after about 90 seconds. Idle settled to about 1200-1300.

Go figure, the demon has been exorcised! Grin At least for now. Roll Eyes

I rev'ed the engine for a few more minutes to see if any stumbling would occur. Nope, she purrs like a kitten. Well I'd like to claim I fixed the problem but I did absolutely nothing. If condition changes I will update y'all. Thanks for everyone's efforts.

Combover Syndrome. The GOP will be announcing a cure any day now...? Wink

But seriously RVFRick, if Spacetiger is right, maybe some dirt was lodged in one of the jets and it flopped over as your CB-1 had momentary thoughts of how Sanders was done in by the DNC!

I realise that being a Brit I'm not supposed to be up on such matters, but my geopolitical radar extends from Washington to Moscow, Tel Aviv to Beiging. Old habits die hard. It's just UK politics that seem so boring and irrelevant these days. Dirty fuel/dirty money all originate in the same place...!

Plus, I notice that tank rust is a common problem on CB-1s. This is due to the fact that the filler caps don't seal properly. I found shitloads of road dirt in the top section of my Japanese model, and a smurf tank I bought was infested with red rust throughout the bottom half. There were big flakes slushing around in the fuel residue. These are both carb killers.

The PO broke up a beautiful low Km bike because he couldn't solve the problem. He stripped the carbs multiple times - yet failed to cure the tank. The tank filter was also split, suggesting someone had tried to solve the problem at some point.

I remember when it was not only possible, but not uncommon to spot someone repairing a motorcycle on the roadside. I even saw a guy stripping his carb one day. It was a British single of course. Now, I have to remove the rank and airbox to gain half decent access to the spark plugs! The compression test is going to be an even more interesting challenge.

Many design choices are influenced by stylistic demands. A heavy steel perimeter is clearly prettier than a cradle (and represents a lesson from history, as well as a stage in the superbike learning cruve), but is is any better than what Fritz Egli did for the Honda CB750 in 1974?

6  General Category / Tech Corner / Re: Pilot Idle Mixture Screws on: July 20, 2017, 11:32:23 AM
This looks interesting, but it's Philips not JIS:

https://www.ebay.co.uk/p/2110283928?iid=291974560776&trdt=0&rdtsrc=vi

Two ended hex drive, made in Japan, UK business seller: 6 inc postage.
7  General Category / Tech Corner / Re: Pilot Idle Mixture Screws on: July 20, 2017, 11:03:45 AM
Cheers guys. I had a look in the workshop manual last night and there was a note saying 2 air screws are shorter on Canada models apparently (can't remember if it was the inner or outer 2). I wonder if that means they are all the same length on the Japanese spec.

I can't find another set of carbs in the UK at the moment so I might take a gamble on those screws from aliexpress. They don't cost a lot and you get two in a pack, so I won't be too horrified if they don't fit! I'll report back

Nice on the webbikeworld link ModerateFkr, I read that before buying mine.

I went for the Vessel Megadora P1,P2,P3 set too a_morti, after reading this - http://www.webbikeworld.com/motorcycle-tools/jis-screwdrivers/vessel-jis-screwdrivers.htm

You're welcome JamesM. I thought it interesting but not at all surprising the bike shop had that attitude with the author over even the very existence of the JIS. How many times have we met that attitude? Part of the British disease I'm afraid. That's why it's so refreshing to meet the polar opposite, as I did recently in my local Cromwell Tools depot. The guy told me he got the job because his brother-in-law is the manager, after being made redundant, and that he's not getting a lot of sleep because he has a 4 month old baby. Hes also a big lad who clearly finds it an effort to dash around the place. An obvious potential recipe for some impatience if nothing else, right?

But when I ordered a compression tester and it failed to arrive in time for THREE revisits by myself, due to not being included on the daily dispatch, he was very honest and gave a bunch of freebies - partially for not being rude to him about it. And I ended up not buying it because it didn't have a 10mm adapter.

Thank you for the tip on the Vessel Megadora P1,P2,P3. Do let us know how good they are. Drivers are all about material and machining quality and handle shpe. Those FAKE 'ergonomic' three sided ones make me almost homicidal! What ort of fool thought tht was a good idea?

The human hand naturally forms a square when forefinger is closed to the thumb. However, for driving woodscrews, the old fashioned bulbous oval in beech is impossible to beat. A few years ago I found that Stanley still made Pozidriv screwdrivers with blue plastic bulbous oval handles.

When I'm working on a car or a bike, I prefer driver handles that resist rolling when placed on a less than level surface, yet don't send a jolt of pain as I try to undo over tightened or seized screws. That's a balance. The handle on my Honda toolkit driver is too small and a bit sharp - but it doesn't roll too easily Smiley.


8  General Category / Tech Corner / Re: Pilot Idle Mixture Screws on: July 19, 2017, 08:41:18 PM
Can't help you with your screw question, but I can share this link with everyone:

http://www.webbikeworld.com/motorcycle-tools/jis-screwdrivers/

I'm still looking for the best one, but my CB-1 has a full toolkit including a Japanese screwdriver in great condition.

Good luck with your search. Lots of patience and a long soak in that carb regeneration juice seems to be the answer - plus JIS of course.
9  General Category / Tech Corner / Re: New bike a Republican? on: July 18, 2017, 08:41:32 PM
I document most of my work so I have lots of photos. Too many. Anyways, I organize by areas of interest and project. In each master folder I create a "Low-Res" folder.

You need a PC to do this (wish Mac could do it) for this "hack":
1 Select your photos for downsizing (you can multi-select as many as you want).

2 Right click > Send To > Mail recipient. This launches a dialogue window Attach files
.
3 Select picture size "Smaller" or whatever will create file size you desire. Experiment as your results may vary.

4 Select Attach (launches MS Office Outlook for me)

5 Select all the attachment files in the email that Outlook has started and Ctrl+X (cut to clipboard) or drag to the "Low Res folder" you should have already made.

6 Now go back to your forum post and select and attach the appropriate downsized photo you just created. Done.

BTW I haven't been able to post more than 1 photo at a time to this forum even though each image is under the imposed 128kb limit. It might add the size of all photos (dumb).

That's a very handy tip RVFRick. And you've posted nice pics.

You can do something similar on a Mac using Preview. I know it works individually. You click Save as in the menu bar and select the file size.

Sadly I'm only able to get on the net via my iPhone right now, and every photo is always too big. It might be possible to email each shot to myself as a smaller file, then import it back into my albums...! These sites are really all about the ads, so they're limiting their server bandwidth to users to allow the ads to do their thing uninterrupted. Other sites are much much worse. All newspaper sites are criminally sluggish - all due to the ads loading!

Anyway, have you tried reproducing your issue by moving or pressing on any suspect parts?

The point I was making about copper is that it ages. Also, damp can cause corision where copper wire connects to brass, creating a dry joint.

Have a look at your side stand kill switch. It's whole life is lived in the road splash, and every drop of water that ever fell on the bike - ended up down there somewhere eventually.

Plus, your side stand has mass which might move as you hint you're going to vote for the Dems...!;)

10  General Category / General Discussion / Re: A$$hats Galore in Los Angeles...please if you know any of the idiots... on: July 18, 2017, 06:11:20 PM
I just saw this on the news.
Please folks...for those of you in southern Cali....if you personally know any of these "A$$hats"...please tell them not to put themselves in a place on public roads where they could potentially KILL another person..............please.

http://losangeles.cbslocal.com/2017/07/16/dangerous-motorcycle-freeway-stunts/



Found it now, and checked the article. I'd like to agree, but I'm not sure it's a CB-1 subject Wink Wink Wink

That's three smileys mate.

I was just TREMENDOUSLY impressed by the skills, especially the girl in the vid I shared. Her control was outrageously good. They're operating at a higher state of awareness - one I only really knew in combat, and tried to revisit on bikes, though never where or when it presented a danger to others.

I'd be interested to know how many members of the public have had issues. It's very likely that, as with freestyle climbers, they're a greater danger to themselves.

But look at it this way, if they joined Tgey military they would only be killing foreigners Wink
11  General Category / General Discussion / Re: Not all 'fails' are equal...! on: July 18, 2017, 05:55:52 PM
read my posts "A$$hats Galore"....ridiculous.


I would if I could find it VintageHunter.
12  General Category / General Discussion / Re: Searching...again. Alas my beloved CB1 is on loan on: July 18, 2017, 05:44:49 PM
Are you seriously going this direction in a motorcycle forum? We're all here for the CB-1. Not interested in your insults towards me or the President. If it's not about the CB-1 I'd thank you kindly to stow it.

Wow! Steady on there horse. Where and how did I insult you? If you're offended by facts, then maybe you need to find one of those liberal safe places.

Maybe you missed two other facts:

1.  This is a discussion that has evolved to encompass the wider implications of Photobucket's policies. Jerry Spacetiger his already indicated he's looking into providing an alternative service. Ergo the discussion is relevant and has been engaged in by several members already.

2.  This discussion is taking place in the    General Discussion      board/section which is very clearly subheaded:

"Feel free to talk about anything and everything in this board."

Now explain the real basis for your conduct. Or to put it another way, why are you involving yourself in a discussion you claim you don't want to be taking place?

If you're accusing me of insulting you, identify the alleged insult or retract and apologise.

And if you're seriously defending the laughingstock of the western world, you might want to do some of that research I suggested. Everything I wrote is based upon documented facts. Try beginning by looking up the word INTEGRITY. It's still in Webster's I believe, but at the top of the list of words no longer relevant to public office, a situation that cannot of course be blamed entirely on the crass vulgarian.

Not impressed.


13  General Category / Tech Corner / Re: New bike a Republican? on: July 18, 2017, 04:14:58 PM
RVFRick, please forgive me but I've smiled all the way through your first posts here. No malice intended of course, but either your (comic) timing is impeccable, or you read the most recent posts where my new buddy VintageHunter and I are doing our best impression of a Bill Hicks skit in which I'm sure he will be please to know he's Jack Pallance Wink.

You've also convinced me not to paint my CB-1 red. In the UK red is associated with the left, as it is internationally, but even though mine is a Japanese model, I'm not taking any risks. Wink

My theory on your problem is that something that moves, or shouldn't move but is, is somehow cutting either the fuel or the power. Copper wire hardens and fatigues over time. But if something in one of the carbs is loose, that might be the problem. Is it running on all four cylinders properly? It won't be the fuel line. The float chambers hold several minutes of tickover fuel.

14  General Category / General Discussion / Re: Searching...again. Alas my beloved CB1 is on loan on: July 18, 2017, 03:12:06 PM
How wonderfully ironic Jsboening, you've posted two photos no one can see!

I'm sure it's Trump's fault you have nowhere to store your photos for free. He should put that at the top of his agenda. Lol.

And yet that clearly wasn't ever my point was it? Should I assume further explanation will be lost on you? Or would you like me to run though the situation one more time in baby steps?

Innovation occurs in various environments, such as wartime and in positive forward looking political climates.

Times when innovation does not occur include periods of moral and educational decline and regressive political climates.

Furthermore, the process of innovation is liberal in a non political sense, but technogy and the arts tend to thrive when rednecks aren't in charge.

Finally, the investment for tech innovation most often comes from venture capital provided by... those who are already successful in technology.

Once again, simple facts. And last night I made multiple attempts to upgrade my Photobucket account, but each time either a popup covered the page or it diverted to an ad page via multiple others on the way!

There are of course many places to store photos online. But Photobucket is one that has destroyed its own reputation by failing its users.

Is that clearer?

15  General Category / General Discussion / Pewag Chain in the reviews section on: July 18, 2017, 02:49:14 PM
I put something useful in the reviews section because it was looking neglected Wink
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