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Topics - Lobo

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Misc / Open / Daisy & nipples
« on: May 21, 2019, 01:04:23 PM »
Ok, got your attentions.. (!) 😀 (Steve - hope ya don’t mind a bloody car gate crashing the SOHC Forum - sorry)

Not my Hondas, but rather my Kombi (Daisy), whose spark plugs have those wretched screw on nipples. These nipples seem to be always loose / unscrewing, and the plug leads matings kinda clamped but never gripping... so the question is, are there HT losses / spark inefficiencies in this connector system? 
I know it’d be fairly easy to swap the leads over to the screw thread type attachment - but they’re new etc and I’ll wait if no big deal.

CB750 / Red line engineering
« on: April 15, 2019, 11:55:58 PM »
Apologies, likely discussed before...
Interested to learn the criteria in setting the red line (rev) limits on our bikes (or any i/c engine). Whilst I wouldn’t do it - would it be acceptable to take my 47yo K2 upto it’s limit? Is there a 5% rule (or suchlike) that is assumed the engine won’t operate @ the max rpm. Is there a ‘fat factor’... how much? What form would the failure likely take - valves first? So many questions...

CB750 / Front brake lever travel
« on: April 09, 2019, 11:06:28 AM »
Ok, so I need to take up weight lifting...
My K2’s front brake lever begins to bite at about 1/2” travel, with full brake at about 1” - ie my fingers are still pretty much at full stretch.
My mate’s K1; and indeed my 400F, have far gentler brake feels, and are far more efficient hand ergonomics wise.
Any tips to fettles this - barring topping up the system with air!

CB750 / Fork oil leak
« on: March 21, 2019, 03:04:59 AM »
...not my week for oil weeps. (400F engine too..)
My K2 has developed a slight leak at the stanchon / fork slider seal,  despite new (DSS) aftermarket stanchions / seals 1000 miles or so ago. My guess is oil’s weeping past the seat of the seal, rather than the oil seal lip.
Is this a full stanchion out job... or is there a quick easy way of popping the seal? Certainly with no pitting and new parts I’m inclined to reseat rather than replace.
All comments welcome.

CB350/400 / Head + Rocker cover torques...
« on: March 21, 2019, 02:32:53 AM »
Guess one for the builders here, Gents...
Slight oil weep on the ‘400, emanating within the fins / RHS. The engine was rebuilt about 500miles ago, and so figured I’d simply re-torque the head.
Which is what I’ve now done...
Have to say, and using ‘Clarkson parlance, “poo was coming out” as I slackened, and re-torqued each to the book figure (15 ft-lb). Fingers crossed the slight weep has been remedied.
The Rocker cover however, was a different matter, and I noted at least 3 thread inserts already in place. And whilst I couldn’t bring myself to use the book figure this time (6 ft-lb)... bloody #12 (the last bolt!) failed to tighten... even to my calibrated elbow.. and well below 5ft-lbs.
So... that thread has an insert now, and job fettled... til next time.
Q - any comments here wrt using book figures on 40 yo engines which may have indeed been apart more than once.  And if so... given how soft these heads are... what are you typically torquing to? There seems to be a finite number of times these motors can be taken apart and put together!

Desperately Seeking!! / Wanted - SS50 Exhaust Baffle.
« on: January 24, 2019, 07:02:15 AM »
Hi all,

For the first time yesterday rode my little (‘77) SS50, and thought, “Ey up, this sounds FAR too sporty for a 60yo to be out on...”

Blow me... the baffle ain’t there. And worse, it doesn’t list as a separate part # from the main exhaust.

So... can anyone come to the rescue please - I’m not sure if it’s a common part to a C50/90 etc, but basically will be abouts 24mm dia x 112mm long.

Ta, and fingers crossed,

CB750 / Trying to date MM/YY of my K2
« on: December 21, 2018, 11:35:58 AM »
Hi all,

Planning a new headstock plate for my K2; which is missing since PO. Anyways, frame # is CB7502077106.... can anyone please advise me how to go about getting the date of manufacture.

Unless someone has an adjacent number of course!

Ta muchly,

Tricks & Tips / Worn kick start spindle.
« on: December 12, 2018, 01:01:18 PM »
Hi all,

A while since I’ve posted... all bikes safely now in Oz and bloody amazingly undamaged. Cost a fortune... still not through... now need QLD Compliance certificates / thence roadworthy checks blah blah. The things we do for love eh?

ANYWAYS. My wee SS50 kick starter shaft / Kickstarter are splinelees buggers, and recently given up playing together ... and of course those parts now n/a.

(1) anyone got a spare / good condition kick starter for a ‘77 5 Speed SS50 please? (I can actually source a suitable ‘shaft)
(2) tips / tricks for fettling the problem... any mileage in attempting to drill a 3mm hole down the mating circumferences and inserting a peg?

Ta muchly,

PS - if anyone can help with a kick starter it’ll be a UK address!

Desperately Seeking!! / Bits’n’bobs to good homes
« on: September 14, 2018, 11:55:55 AM »
Hi all,

Having a clear-out & recently ebayed a few bits... now left with a couple of unsold items which will sadly go to the tip unless good homes found. (off to Oz, won’t be shipping these..)


(1) CB400F DID Rims... minor rust (this was a US bike originally) / serviceable, though a gorilla has scored the chrome in places. Aargh... 😱
(2) Plastic 750K2 mudguard... in Ruby Red! Interesting...🤔
(3) CB400F Clutch cover... serviceable, a bit scuffed
(4) SS50 (5 Speed) Handlebar mounts. Repro items, grommets u/s
(5)  SS50 Speedo Cable - serviceable, though sheath worn at mudguard contact point.
(6) Wagner Sealed Beam Unit. LHD. 60/45W (approx 175m Dia) VGC - off my 750K2 (no pilot, tho’ interestingly a clear disc area in the reflector for this?)
(7) CB750K2 Rear Light Mount (Fair)
(8) Yamaha Flywheel? 113mm x 40mm (help here?... new / unused condition & sacrilege to skip it)
(9) Possibly a couple of 400F rear wheel spacers.. tba

If you’re interested in any of the above PM me & I’ll send a pic ... unless you want regardless in which case give me with an address. 1st come 1st served basis!

I’m away this weekend & will post next Weds thereabouts... and PM you back with those costs. (to my PayPal pls)

Other Bikes / DIY Tank painting
« on: June 12, 2018, 01:11:53 AM »
Kinda embarrassing after reading James’es / Julie’s restorations (& all the smart stuff everyone here does)... but recently gave new life to a rather tired little SS50 tank. Got it off eBay, complete with minor dents and little bit of internal rust. Took delivery whilst in LHR - it stank of oil, making me fret wrt ‘dangerous goods’ as carry-on for the flight home. So; rinsed it out in the hotel bath (vinegar, shampoo, everything), which only gave me a whole new problem in that I gave the hotel plumbing a run for its money & made the room smell (horribly) like a breakers yard.

Once back home (Brunei) put the tank into a reverse electrolysis bath for 24 hrs which got virtually all of the rust out. Very tidy inside now.

Next up hrs of bloody sanding... and a first in popping the major dent out with a garden hose... simply controlling the pressure inside the tank by varying my fist seal. Dead chuffed with that. For the remaining minor dents - filler of course.

Next up the base layer / rust protection..

And followed by a good few light coats of Kawasaki Green...  I’ve read this is pretty darned close to the original Honda Mighty Green... which my local paint shop simply couldn’t mix up. (I sprayed this via an old compressor / paint gun / 30psi or so)

Then a rub back with 2400 wet & dry.... decals / preserve nature sticker and a good few coats of automotive lacquer. Saddened at the end of all this to have a couple of small areas of orange peel... but bingo, with more light wet & dry + polishing paste these totally disappeared.

Finally - new badges.

The tank, honestly is beautiful, and has a deep rich gloss finish to it. I of course accept it was simple versus the intricate spraying / two tone / flecked / decalling the professionals do, but hey, a  continuing learning curve, and something I’d happily (will) tackle again.

(a couple of years back I did a Parakeet 400F2 tank... came out nicely but with a couple of minor dreaded orange peel areas.  Will go back & see if I can buff them out..)

CB750 / Exporting my bikes
« on: June 06, 2018, 04:01:29 PM »
I guess James - Sussex is the man here, but if anyone can help please chip in. I plan to retire later this year (yay!) to Oz, and want to take the 5 bikes with me - one is post ‘89, the others all pre ‘89.  Any “gottchas” to be aware of; is it simply filling in the appropriate bit of the V5C and bunging them in a crate? I have of course, got an importer set up for the Brisbane bit. All help / comments wrt the UK side of things appreciated. Ta. Simon

What is it? / Calling Ash - can you make my wife happy again...
« on: July 25, 2015, 08:31:21 AM »
Hiya A ll/sh,

No morn porridge for me this am.... microwave gave up the ghost. Whipped the back off it (warily due biggum condenser I believe) and found this. Basically a one hertz flash over short 3 cycles... and then stops. After a rest will repeat performance.

Anyone / Ash... home repairable? Mrs Lobo cock-a-hoop coz she thinks she's in line for a new one... whereas I've Fizzy parts to buy...


Other Bikes / Forgive me.... a Fizzy
« on: June 15, 2015, 08:55:32 PM »
Well folks,

Today I collected a mint'ish 1975 Fizzy. Pretty chuffed with it; an eBay purchase which came in somewhat cheaper than I expected. (But still pricey)

Anyways, it's never been run since resto; was kept as a lounge-piece investment...

No longer... I'll get it MOT'd, insured & soon ridden.

As I say, forgive me. Not a Honda, but as early 70's means a lot to me.


CB750 / Carb Set up / Useful links.
« on: May 18, 2015, 05:29:41 AM »
... came across these today... about 2 yrs too late in my case. So what's new....
The first link has a limited selection of those felt washers, just type 'Felt' into the search box.


CB350/400 / Another gauge freshened up - thanks to Kent400
« on: April 21, 2015, 03:19:35 PM »
Just completed a 'new' CB400 speedo today (eBay / £20); my 5th resto (2x 750 + 2 x CB400F) ... getting better all the time. Just want to publicly say a big thanks to Kent400 (Peter) & his generosity / invaluable tips. (Yup, the mileage has been changed... to fit the bike)


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