My 1983 XS special completely lost its spark after winter layover. Replaced ignition unit with an old ebay original. Bike ran great for about 30 miles. Then started missing losing power.etc... This was quite gradual and intermittent.Got home and noticed right side air filter had worked loose. Tightened it back up. Now bike starts but runs horribly backfires etc..,. Am wondering if the ignition unit is faulty. Carbs have just been cleaned, plugs replaced.
Any input gratefully received.
many thanks
Any input gratefully received.
many thanks