Honda-SOHC

On four of my eight exhaust collars (CB400F) I have these teeth  in the past I plain put them in the way they came out and thought nothing of it, however in recent months (many) it hasn't been me who put the exhaust system back on so I went to the CMSL site to see if that would help but they didn't exist there. By now I'm taking a closer look at them and they aren't exactly uniform, like my own damn teeth even. It must be some kind of damage or mod by a PO. Can anyone shine any light on this

Ted, you have just completed something a younger mechanic would fail at mate.
By the way the chain whilst new was not an expensive one

Good work Ted.

Its a skill that used to be genuinely labelled "Mechanical Fitter" in which the person assembling etc had to be adaptive with approach to competently build assembled machinery.

What could be "fettled" aspect of structural, mechanical and metallurgy, all part of training to cope with various components from disparate scource being built into one machine.

Quite a valued occupation, when we used to make things in this country 

The old fashioned method was the big flat tin of grease you heated on  stove,

But several sprays,
I use Silkoline,or Bulldog BDX,

the later is also great as a freeing agents for stuck nuts and bolts,

It freed all my engine studs ,so I could get the motor out,


Applying, take the bike for a run,
Get it warm,

When you get home,

Put on centre stand, in 1st gear so the wheel turns slowly, spray onto chain and sprockets were they meet at the bottom run,

Careful of the over spray

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Thumbs up for the big flat tin of Putoline chain wax, I use it on my Commando.

I brush the chain off with petrol first then it dry and boil it in the tin using a camping gaz stove in my garage.
Hang up to cool off and set the wax and your good to go for 500-1000 dry weather miles.

Chainmates a clever idea, but on my F1 that runs an O ring chain I stuff a bit of cardboard box up between the main stand and wheel to catch over spray mess when applying Silkolene chain lube.
Cardboard costs nowt...

Oh, BTW is it not the norm to apply chain lube on the inner run of the chain so the oil is flung out thru the chain when in operation?