Honda-SOHC

Of course Julie gives good advice.

But you may want to follow the principle of "if it's not broken don't fix it".

When my old CB750F1 was resurrected I first serviced the motor, then run it and addressed issues as they appeared.

But for example loads of stuff including crank and gearbox oil seals etc are still original and working fine.


Good luck with your project.


 

That was my late Fathers maxim - if it aint broke dont fix it - when I was a teenager I  ignored it of course dismantling things that sometimes I could not put back together. lol

Second Video - right way up. lol

https://www.youtube.com/watch?v=rSXzqWE26Ho&feature=youtu.be

Another step closer today - re-fitted old Petcock with new tank strainer used the old seal but have the two that DS supplied - petrol tank back on the bike - 4 Litres of new Super Unleaded tap into Reserve position petrol filled the little in-line filter all looked okay for a minute or so then petrol started coming out of two of the overflow pipes. Big curse to myself !

Walked away wishing I had checked the carbs with fuel before I re-fitted them to the bike had a moan with a mate who said - have you tried a gentle tap on the carbs incase the floats are just a bit stuck as they were completely dry. Did just that followed by shaking the bike from side to side - fuel back into reserve no sign of any more fuel from overflow pipes. I've given it a good 5 minutes and no more fuel out of any of the overflows. I feel happy that's good enough for a planned initial start up.

I've checked for spark - nice visible spark at the old dirty spark plugs - I am now ready to check the static timing tomorrow morning then its new plugs in place and see if she will run. The new plugs that came with the bike are NGK D8EA as are the old ones that were fitted.

Fingers crossed for tomorrows start up attempt !!

DOT4 works perfectly well.  I think I have also used DOT3

I agree the older specification brake fluids all work okay but if you want to avoid the build up of water in the fluid caused by hygroscopic action imho the best options are later fluids unless of course you religiously change your brake fluid on an annual basis.

The amount of water absorbed by most brake fluids depends on many factors including atmospheric moisture content of the ambient air, unused new fluid storage, winter bike storage conditions & heavy braking causing fluctuations in fluid temperatures. I am minded to agree with NJ that Silicon based 5.0 is the best option especially for classic bikes that do not always get a lot of all year round use as it is not hygroscopic.

On a similar note when I was in the car trade during the 3 day week due to power workers strikes - circa 1973/4 we sold new Opel Mantas Mk1's new in 1975/6 that were in fact 3 years old due to importers & dealer storage!!

They were discounted bargain buys as the Opels did not deteriorate much during storage unlike the Audi 100's that arrived from Audi UK with holes in the roof from Seagull droppings that burnt through the factory body waxing!!

We were paid by Aidi to fix them back to standard factory finish - we did a basic job on the pin holes and put a "Free" vinyl roof on them using a free Vinyl roof as a promotional tool.

Thanks everyone for your support - now it's all about the Bike.

Last night I drained out the bulk of the 10 Litres of Evaporust - I  filtered back into original containers as its not fully spent yet.
Results are amazing - shame I can't get my phone into the tank - its 98% like new everywhere I can see clean silver metal!
The bit that's rather patchy is what I would describe as the inside hump near the filler cap - it has a few spots near the top of the ridge hence I can't call it 100%! Trouble is it needs about 13 Litres to full it right up - maybee another time.

Drained out the last remnants of Evaporust this morning - now the first rinse out using a pint or so of fresh petrol, 325 ml of Wynns Dry Fuel plus 1/3 pint approx of 2T Oil.
I will slosh that all around to try to inhibit any further rusting.

It's a strange thing but as I am approaching fitting the tank and getting close to an attempted start up I feel myself slowing down fearing unforeseen issues. I ought instead to be estatic at the prospect - is this normal !!

Knowing my luck the Carbs will decide to flood just to set me back a few days. Wish I had tested them with fuel before I refitted them now!

This Friday all things being equal it will be fitting the rebuilt Petcock and putting some proper petrol in the tank!

Wow that sound of it running is music to my ears I'm really chuffed for you- that is where I want to be by mid October at the latest if I can!

I expect mine to be noisier due to the known cam chain rattle and leaking exhaust though.

Welcome Dave,

I'm pretty new here as well - currently in phase 1 - getting my CB400F2 running before full  strip down over the winter. Slightly behind target date but there is no rush,

Next year I'm planning a run up to Mathewsons Auctions with the Missus - on 4 wheels though are you near there?
As you may have already discovered - listen to Nurse Julie she knows her stuff!