Sparking plug choices
- Thread starter maylar
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What kind of ignition?
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Hi
I have Boyer Brandsen Electronic ignition and I fitted it in 1979 I have no trouble with it and find that NGK plugs are the best. Just find the ones that match the Champion ones, my bike is away from me at moment but will let you know the ones I use if you want . I tried special ones for electronic ignition but they were useless.
Regards
Dave
I have Boyer Brandsen Electronic ignition and I fitted it in 1979 I have no trouble with it and find that NGK plugs are the best. Just find the ones that match the Champion ones, my bike is away from me at moment but will let you know the ones I use if you want . I tried special ones for electronic ignition but they were useless.
Regards
Dave
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BP7ES
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maylar said:
and the problem is? $6 a year don't seem to bad 2 me?
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mikegray660 said:
Maybe he only rides once a year. :mrgreen:
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swooshdave said:
then i think i know why his plugs are going bad! :shock: (i like autolite -AP63 platinum $2.89 - - and yes they go bad about once a year, usually at startup after winter - w/ about 5K miles)
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How do the plugs go bad?
As long as the electrode and insulator are in good shape (not cracked or missing), just clean and re-gap?
When these bikes were new, most garages had little sandblasters for sparkplugs that cleaned off carbon buildup in about 15 seconds. Plugs were replaced when the insulator cracked or the electrode was too worn to properly gap.
As long as the electrode and insulator are in good shape (not cracked or missing), just clean and re-gap?
When these bikes were new, most garages had little sandblasters for sparkplugs that cleaned off carbon buildup in about 15 seconds. Plugs were replaced when the insulator cracked or the electrode was too worn to properly gap.
Plus one one the fine-wire Iridiums. Originally put them in pre-reringing, to eke out some miles before replacing some worn rings - they resist fouling MUCH better than other plugs - but have kept them in post new rings as they're such great plugs. Run them in all my bikes nowadays - placebo effect? - it's possible, but I like them.
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BillT said:
http://www.harborfreight.com/cpi/ctaf/d ... mber=32860
Have mine bolted to my bike bench.
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orig set up points 6 volt coils/condensers.
Use NGK BP7ES w/ amal 932's stock again.
750 cc 10:1 compression.
No problems in 1400 miles.
Took out and inspected at 600 miles.
A nice lite tan on ceramic insulator.
I may change next year as heat is hell on everything.
And for $5.00 a pair it's cheap piece of mind.
Marshal
Use NGK BP7ES w/ amal 932's stock again.
750 cc 10:1 compression.
No problems in 1400 miles.
Took out and inspected at 600 miles.
A nice lite tan on ceramic insulator.
I may change next year as heat is hell on everything.
And for $5.00 a pair it's cheap piece of mind.
Marshal
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- Apr 15, 2009
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- 11,527
I run Boyer with standard coils, and use the NGK Iridiums. The bike will start with just a lazy kick when it's been left for a few weeks when I have been at sea, never spits backs and does not fire and die - if it fires it will just carry on whereas in the past it used to be 2 or 3 kicks with the odd pop or fire and die then need another kick. I came across them when a Vincent owner suggested them as they seem to work better with a MAG, as they will give a good spark on less volts.
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I have a set of these to screw in once initial tuning for the SS pipes and megs (which I don''t have yet) is done on the Champ 7Y's. I used to love the Champ N4G Gold Palladium plugs, but I don't think they're available anymore. Hope the Iridiums do as well or beter.ML said:
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