The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Lucas, Ignition, Charging, Electrical => Topic started by: rockthedog on 21.10. 2011 20:22

Title: bsa a10gold flash spark plugs
Post by: rockthedog on 21.10. 2011 20:22

hi can anyone tell me if the spark plugs in my 1958 a10 should be long reach or short reach as mine are short and a friends a10 are long cheers mal

Title: Re: bsa a10gold flash spark plugs
Post by: muskrat on 21.10. 2011 20:52

G'day rockthedog, alloy head use long reach NGK B7ES, iron head use short reach B7HS.
Cheers

Title: Re: bsa a10gold flash spark plugs
Post by: rockthedog on 21.10. 2011 20:58

Quote from: muskrat on 21.10. 2011 20:52

G'day rockthedog, alloy head use long reach NGK B7ES, iron head use short reach B7HS.
Cheers

thank you muskrat

Title: Re: bsa a10gold flash spark plugs
Post by: wilko on 21.10. 2011 22:34

Unless some designer botched it, 99 percent of engines always use longreach for aluminium heads.Chainsaws and mowers are a few exceptions.