verify oil tappets/rocker box ?

Thanks Fast Eddie, an interesting read, looks like you spent a lot of time on it. My bike is all 'standard' European settings, as it left the factory, and with standard exhausts. And Champion N5 plugs. It is possible to make the engine pink with high gear / low revs, but easy not to ride in that 'zone'. I go for super unleaded wherever possible, and it feels like it runs nicer than it did in the last days of 4 star. I did put some aftermarket Triumph pattern 'sausage' silencers (use the word loosely) on it, and it did look 'right'. But the shape of them meant I couldnt fit passenger footrests, no biggie in itself, but the things broke - brazed joints came apart, so it was back to the standard exhausts. Will check for the air jet, but presumably being a UK bike, it wouldnt be fitted.
 
daveforty said:
Thanks Fast Eddie, an interesting read, looks like you spent a lot of time on it. My bike is all 'standard' European settings, as it left the factory, and with standard exhausts. And Champion N5 plugs. It is possible to make the engine pink with high gear / low revs, but easy not to ride in that 'zone'. I go for super unleaded wherever possible, and it feels like it runs nicer than it did in the last days of 4 star. I did put some aftermarket Triumph pattern 'sausage' silencers (use the word loosely) on it, and it did look 'right'. But the shape of them meant I couldnt fit passenger footrests, no biggie in itself, but the things broke - brazed joints came apart, so it was back to the standard exhausts. Will check for the air jet, but presumably being a UK bike, it wouldnt be fitted.
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If I’m reading the JH stuff correctly, ALL T140Es left the factory set up to full EPA spec, so will have all the unusual weakening tricks, inc those air jets.

So I think the main point is this:

If you’re happy with how it runs and don’t intend to fiddle with pipes etc, leave it alone.

If you do start fiddling, do yourself a favour and revert to FULL pre EPA spec, inc removal of the air jets.
 
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