I know this has probably been kicked the ass out of, but I haven’t found any kind of satisfying answer. Is there a good road/trail tyre that stands out? I’m not talking motoX. Just good trail/green lane type knobbly. Money isn’t really the question, quality is...
Please give recommendations on performance, not points for style It needs to stick to a road but offer some realistic kind of mud traction...
I’d really, really, appreciate any views on this...

Sorry, I meant excessive. 2strokes normally have some staining at the exhaust port don’t they? Due to the back pressure from the exhaust?
I usually think of blow by in 4 strokes, when you get gases chugging out the breather pipe caus the crankcase is over pressurised...

Gotchya, the wear is so even it should be straight forward.
The Haynes I have says to use ‘judicial’ filing. Does that mean I have to wear a grey wig and robes

Sorry to rehash an old thread, but it’s a good question. It’s the first thing I wondered on when I first got my dt.
It’s an air expansion hole. There is a sizeable enough air void inside that is opposite where the hot coolant goes to the water pump. If it was closed the air would expand, into the crank or outwards if the crankcase seal failed...
I only worked it out when I split the cases...

I did my mains recently and one of the seals was tight. I had to clean it up a bit with some really fine wet and dry, just to kinda deglaze it. Lite smear of grease on the seal and it went in easy. Don’t forget the right seal is one sided. It should have outer wrote on one side. Also it doesn’t go all the way in. It sits flush with the outer edge (or it does on mine 1988 3bn). It shouldn’t be a bear to fit cause it’s only the outer that’s touching anything, unless you left the spacer in the crank. You just need a longer tube to drift it...

I need a loom with usable connectors for my bike. The loom itself is not so important but would be sweet if good.
Or does anyone know what to use to desolve the corrosion on old connectors? Would caustic soda work? Or would it have to be weakish sulphuric/battery acid?
Ta!....

It’s an 60/40 bias towards road. Even though I ride road 80% of the time. I’d prefer it to be sticky rather than rolly, if that makes sense.

That’s a damn good idea, I’ve always resorted to molegrips to turn the piston.
Gentle heat (boiling water) and pumping the lever sometimes works if it’s not been standing seized for ages. So long as you have replacement rubbers...
I’m guessing that the brake was working before?...

I know this has probably been kicked the ass out of, but I haven’t found any kind of satisfying answer. Is there a good road/trail tyre that stands out? I’m not talking motoX. Just good trail/green lane type knobbly. Money isn’t really the question, quality is...
Please give recommendations on performance, not points for style It needs to stick to a road but offer some realistic kind of mud traction...
I’d really, really, appreciate any views on this...

You really need to check the back of the piston that isn’t exposed to exaust gas at the manifold. The piston skirt is exposed to the ex manifold on the upstroke.

Rounded off the second one got the bugger out in record time though, same way. I bet they’ve been in there since 88...

It wasn’t the damper rod it was stuck in. The head of the Allen bolt was ‘welded’ to the fork bottom alloy. I drilled it out in ecrements till it was 11mm then banged an Allen key in. The ball/swively end of the Allen key keyed into it nicely. What with the heat of the drill and shock it freed off enough to jam a brush handle down the Stanton to hold the damper rod in place and undo the Allen bolt.
One down, one to go!

Sorry, I meant excessive. 2strokes normally have some staining at the exhaust port don’t they? Due to the back pressure from the exhaust?
I usually think of blow by in 4 strokes, when you get gases chugging out the breather pipe caus the crankcase is over pressurised...

What do you mean by blow by? Black oily stain on the piston below the rings, or oily crud in the exhaust manifold?
If it’s stain below the piston rings you’ll have to replace them or more...