Not sure what happened, when or how but the engine started playing up big style on this thing. It just would not go on the 2nd stage of the choke and was misfiring badly under load. So all the usual avenues were investigated, exhausting my limited knowledge of carburettors.
Replaced all the ignition components
Checked for air leaks, replaced all the gaskets and vacuum hoses
Paid for the ignition timing to be checked
Rebuilt the carb with a servicing kit from Fast Road Cars
No change after all this and a good couple of months of frustration and driving the car around on half throttle.
Took it to Paul at Circuit Motors by Castle Combe this week as a final straw. He was recommended to me as someone with a decent diagnostic machine and experience with Webers. The ignition timing was nowhere near correct as it was (this despite 2 garages checking it out for me) and this immediately cured a lot of the issues with the car.
Left the car there for a couple of days so it could be properly tested and have the Weber carbs tuned/re-jetted on the rolling road and came away very happy. As you can see it went from a very poorly 41bhp to a whopping 71! Not bad for the little 1300 that supposedly left the factory with 55bhp.
Replaced all the ignition components
Checked for air leaks, replaced all the gaskets and vacuum hoses
Paid for the ignition timing to be checked
Rebuilt the carb with a servicing kit from Fast Road Cars
No change after all this and a good couple of months of frustration and driving the car around on half throttle.
Took it to Paul at Circuit Motors by Castle Combe this week as a final straw. He was recommended to me as someone with a decent diagnostic machine and experience with Webers. The ignition timing was nowhere near correct as it was (this despite 2 garages checking it out for me) and this immediately cured a lot of the issues with the car.
Left the car there for a couple of days so it could be properly tested and have the Weber carbs tuned/re-jetted on the rolling road and came away very happy. As you can see it went from a very poorly 41bhp to a whopping 71! Not bad for the little 1300 that supposedly left the factory with 55bhp.