Ok, I'm getting really really desperate.
I built a Norvin 30 years ago, and I have been trying to get it to run something like decent since then. Maughans rebuilt the chopped engine with 7.3 pistons and Mk2 cams and it runs a Norton box and belt primary with a crank mounted Lucas 3 phase alternator.
I've had Amal Mk2s, Mikuni's and now Amal Mk1s on it, it's had twin points with twin plug ignition with standard ATD, twin points with HD ATD single plug ignition and now twin points standard ATD single plugs
And I've never been able to get it to run right, for instance I just had it ticking over smoothly, set off up the road, and it won't shut off properly, instead of sort f 800 rpm it's running at 2.000, it's always pulled well but never shut off properly whatever I've done and never ticked over again reliably once I've got right to begin with.
By the way I have no problems sorting my "Shadowish" or any of the other bikes I have.
I don't want to fit a Lucas magneto even though I have a good one because the engine only turns over slowly because of the box/primary ratio and I'm reluctant to try electronic ignition and a BTH is expensive just to try.
Any ideas please
Chris.
I built a Norvin 30 years ago, and I have been trying to get it to run something like decent since then. Maughans rebuilt the chopped engine with 7.3 pistons and Mk2 cams and it runs a Norton box and belt primary with a crank mounted Lucas 3 phase alternator.
I've had Amal Mk2s, Mikuni's and now Amal Mk1s on it, it's had twin points with twin plug ignition with standard ATD, twin points with HD ATD single plug ignition and now twin points standard ATD single plugs
And I've never been able to get it to run right, for instance I just had it ticking over smoothly, set off up the road, and it won't shut off properly, instead of sort f 800 rpm it's running at 2.000, it's always pulled well but never shut off properly whatever I've done and never ticked over again reliably once I've got right to begin with.
By the way I have no problems sorting my "Shadowish" or any of the other bikes I have.
I don't want to fit a Lucas magneto even though I have a good one because the engine only turns over slowly because of the box/primary ratio and I'm reluctant to try electronic ignition and a BTH is expensive just to try.
Any ideas please
Chris.