classic motorcycle forum

Motorcycle Discussions => British Bikes => Topic started by: Rich on September 20, 2009, 09:45:53 PM

Title: 1966 d7
Post by: Rich on September 20, 2009, 09:45:53 PM

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

Title: Re: 1966 d7
Post by: Goldie on September 20, 2009, 09:54:18 PM

Sounds electrical to me.

Title: Re: 1966 d7
Post by: Rich on September 20, 2009, 10:12:29 PM

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

Title: Re: 1966 d7
Post by: Searchguru on September 21, 2009, 06:48:08 PM

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.

Title: Re: 1966 d7
Post by: Rich on September 21, 2009, 10:03:18 PM

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

Title: Re: 1966 d7
Post by: Justin_Faithfull on September 27, 2009, 10:18:56 PM

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