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Author Topic: bsa a10gold flash spark plugs  (Read 1102 times)

Offline rockthedog

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bsa a10gold flash spark plugs
« 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
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Offline muskrat

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Re: bsa a10gold flash spark plugs
« Reply #1 on: 21.10. 2011 20:52 »
G'day rockthedog, alloy head use long reach NGK B7ES, iron head use short reach B7HS.
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
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Offline rockthedog

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Re: bsa a10gold flash spark plugs
« Reply #2 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
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Offline wilko

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Re: bsa a10gold flash spark plugs
« Reply #3 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.
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