Show whole topic Aug 18, 2016 3:29 pm
cahallett Offline
Member
Registered since: Apr 02, 2012
Location: -


Subject: Re: Suitable Spark Plugs for 16/80?
Hello Richard,

I used to run on the NGK AB6 plugs and they are great but at slow running they do/will foul up.
Last year when driving through Spain (hottest weather there in 40 years – 46 degrees in Toledo) I switched to the NGK 7811/BP6ES plug.
It’s a modern plug so you need an adapter for the thread which I think is good because once the adapters are in place you are screwing into the adapter and not your 80+ year old cylinder head.

Anyway, in a nutshell the performance with this plug is slightly better than the AB6 and they don’t fowl up as easily at lower speeds.

Now that my carbs are correctly tuned (with modern fuel in mind) I have been running on these plugs and they are always a light biscuit brown/whitish colour (apparently whitish is best with modern fuel).

Give them a try, you will not be disappointed (Green Spark Plug Co for best price) and if you don’t like them (but you will) I’ll take them off your hands.

Best Regards
Chris