ok, to save making my life eeven harder than it currently is, im going to altr only one thing at a time on the engine, so as to prevent myself from either making a problem worse or else introducing new ones. ven though im planning to rmov the top end, first job is to fit thee new carb, this way i know that it will run ok and start easily without any doubt that what ve changed will solve the problem i have, if i lower the compression first, then change the carb i wont know if any improvement is down to one or the other.
so i looked up replacememt amal carbs. still available from amal, made in england. £191 quid each inc vat, but plus postage. errrrrr........ so, ebay, mikuni copy, for a c15, 25 quid inc delivery. no brainer. i remove thee old one, pop th new carb on, noting that the existing throttle cable even fits, turn on the fuel and ignition, prod the kick start and......... it runs, first kick. not only that, but it revs clean with no lumpiness or stuttering, and most amazing of all, it ticks over. an even steady tickover, no black smoke, no petrol drips, no smell of fuel, no hunting or lumpiness, just a steady tickover like an old lawnmower. incredible!
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