Honda-SOHC

I've found Ted that whilst it's standard to replace the chain whilst the engines apart it's the tensioner which could be the real problem, I've got quite a few of them now and most show some sort of damage, most common is having the tensioner actually bent out of shape, very common to see the bottom section well out of line with the top and normally bent inwards. Also damage to the cups where the damper rubbers go, gets damaged by the primary chain if it's very worn. All these stop the tensioner working correctly.

TBH you don't tend to notice it until you have 2 or 3 side by side and you can see the difference in the shapes.

Gerben does the carbs, however he does seem to do them on an exchange basis and it's been known for him to send carbs which don't suit the bike, for instance a set of European carbs with smaller jets for a UK bike, getting them to run without the airbox snorkel is difficult.

The small metal figure 8 pieces between the vac adjusters is normal, I'd leave them on.

Clearly the carbs haven't been set up right, there is a knack to it but if it's beyond your skill set I'd get someone else to do it, Bryan isn't that far from you in Gloucester so maybe he'd be interested.

Need more info, does the engine stops but the lights etc stay on? Just an engine stop could mean the kill switch contacts, full shut down is most likely an ignition switch fault

Then you're not trying hard enough Roo.

Just measured the head gasket thickness.

Genuine gasket out of top end set, difficult to measure as Honda put some sort of sticky layer around the hole and it has the effect of sort of bubbling the surface a little but 1.4mm is my best measurement.

My aftermarket kits were both NP ones, Royal Industries NP18004 to be exact. the kits were mixed together but 2 head and 2 base gaskets along with 2 sets of Orings etc, only one of which included the ones for the head oil gallery in question, no sticky layer around the opening, unlike the Honda one but both measured around 1.4mm as well. If anything I'd say they were slightly thicker than OE as they did measure thicker at times, both measured 1.5mm depending on how you read the micrometer.

All the kits were from the 80s maybe even earlier, late 70s maybe.

My PM from another member was there earlier today, went back to look at it for his address and it's gone, I didn't delete it and the last time something like this happened it was because an earlier version of the forum was loaded on top of the latest version for some reason.

Any ideas?

I've got some yellows if your desperate.