Honda-SOHC

Whilst cleaning up my cylinder head nuts I wondered why use dome headed nuts when you can't see them - why not just use a full nut?

Morning.
Whilst riding home from work last night my dipped headlight stopped working, switched on to main beam, that didn’t work either! The only way I could get the headlight to work was the pass/ flash light switch.
Was wondering if anyone had come across this before or where I should look first.
Thanks in advance.
Chris.

Before blaming the switch I would check the earth side of the switch first - especially if the clock illumination went out as well.

You might get the tensioner in after head on but you wont get the guide in after head on

Thanks Bryan - I had it in my mind that one came out when I was stripping down the engine with the head in place - clearly I'll get both in situ before I fit the head.

I've seen those in tubeless  car tyres in the past - I just assumed it's a snowball type situation.

I was looking at NJ's project rebuild of her 400 engine (essential revision/homework) - I can see an extra O ring between the cylinder block and the crankcasing - not sure if it's just the one side (left hand No: cylinder side in photo) or both. I assume it's the oil feeds to the cylinder heads so both sides need a ring?

I respect Triggers workmanship so presumably most folk here do this on a rebuild?

As my cylinder head is not yet in place for a couple of weeks I'm minded to do the Trigger upgrade- does it matter if the seal sits on top or underneath the casing gasket?
Is it necessary to alter the gasket hole to accomodate the ring or does it simply add extra compression to the dowel seal?

I assume I can just raise my block a tad to sneak them in - going to need the ring(s) if I do from NJ then?


..bottom extra case O ring by Macabe Thiele, on Flickr

Silk made in Darley Abbey by Macabe Thiele, on Flickr

Made in Darley Abbey in the past.


.Jones by Macabe Thiele, on Flickr

A UK specialist tuner

A bloke in Derby. PM me for details.

I live in Derby can you PM me details please as I am going to need a paint job probably over the winter period and am out of touch with local paint services -thanks Ted.

The rubber parts fell to pieces when refurbishing my carbs. Am I ok to assume it’s ok to run without them?

Thanks
Charlie

I can't work out what they do aside from making it easier to assemble all four carbs onto the mounting plate.