1966 d7

[Rich]

can anyone help as i am new to bikes i have just restored a 1066 d7 and took it for its first run since 1974 it goes great for a couple of miles then starts backfiring then cuts out any info would be greatful thanks rich

[Goldie]

Sounds electrical to me.

[Rich]

any idea what to try mate i have replaced coil battery condencer points rectifier and switches

[Searchguru]

Rich,
It could be electrical, as Goldie says but if it consistently runs for roughly the same length of time then it could be a fuel starvation issue. Check the fuel line, all the jets and airways in the carb as you may have some build-up of 'varnish' from the old fuel. Unless you know that everything was drained out in 1974. Some more symptoms might make the 'e-diagnosis' a bit easier. Cheers.

[Rich]

thanks matey it could well be fuel as your the third person to say thw same thing cheers

[Justin_Faithfull]

"i have just restored a 1066 d7".
Is this the Battle of Hastings model, with the extra arrow!