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Commiserations, I think you look forward to the Dartmoor Run particularly every year?
>Damn bike went one cylinder
>Changed the entire Boyer unit and the same.
>The Boyer has a wasted spark so maybe i am only getting the wasted one when that cylinder is at bottom.
You aren't understanding. "Wasted spark" only means both cylinders get a spark when, on a 360-degree parallel twin, one cylinder's on its compression stroke BTDC and requires the spark. The other cylinder is also the same degrees BTDC, gets a spark at the same time, just the cylinder's on it exhaust stroke. Only the latter is the "wasted spark".
360-degree parallel twin, one cylinder firing, cannot possibly be any part of the e.i. as that's common to both cylinders. Separate coil for each cylinder, if it's electrical, can only be a problem with the coil, HT lead, screw-in cap if fitted or plug.
>think i will recomission the Spitfire in the week so i have a spare old bike ready to use.
+1 but, having had two T160's since 1982, I can assure you both can have something wrong at the same time. I try to minimise that agg. by having more bikes but then you have the other agg. of keeping 'em all usable ...
Hth.
Regards,
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